Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (2): 147-158.DOI: 10.11686/cyxb2021236
Bin WANG1,2(), Yu-qi YANG1,2, Man-you LI1,2, Wang NI1,2, Yi-rui HAI1,2, Shun-xiang ZHANG3, Xiu DONG4, Jian LAN1,2()
Received:
2020-12-08
Revised:
2021-05-06
Online:
2022-02-20
Published:
2021-12-22
Contact:
Jian LAN
Bin WANG, Yu-qi YANG, Man-you LI, Wang NI, Yi-rui HAI, Shun-xiang ZHANG, Xiu DONG, Jian LAN. The effect of sowing rate and row spacing on the yield and quality of alfalfa in the Ningxia Yellow River irrigation area[J]. Acta Prataculturae Sinica, 2022, 31(2): 147-158.
播种量Sowing rate (S) | 行距Row spacing (R) | 组合Combination (SR) |
---|---|---|
S1 (13.5 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S1R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S1R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S1R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S1R4 | |
S2 (18.0 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S2R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S2R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S2R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S2R4 | |
S3 (22.5 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S3R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S3R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S3R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S3R4 |
Table 1 Combination of sowing rate and row spacing configuration
播种量Sowing rate (S) | 行距Row spacing (R) | 组合Combination (SR) |
---|---|---|
S1 (13.5 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S1R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S1R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S1R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S1R4 | |
S2 (18.0 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S2R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S2R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S2R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S2R4 | |
S3 (22.5 kg·hm-2) | R1 (15 cm等行距,15 cm equal row spacing) | S3R1 |
R2 (20 cm等行距,20 cm equal row spacing) | S3R2 | |
R3 (两窄一宽15 cm+15 cm+20 cm,two narrow and one wide 15 cm+15 cm+20 cm) | S3R3 | |
R4 (一窄一宽15 cm+20 cm,one narrow and one wide 15 cm+20 cm) | S3R4 |
因素 Factor | 株高 Plant height | 分枝数 Branch number | 叶茎比 Leaf/ stem | 干草产量 Hay yield | 粗蛋白 Crude protein | 中性洗涤纤维 Neutral detergent fiber | 酸性洗涤纤维 Acid detergent fiber | 相对饲喂价值 Relative feed value |
---|---|---|---|---|---|---|---|---|
播种量 Sowing rate | NS | * | * | * | * | NS | * | NS |
行距 Row spacing | NS | * | ** | ** | ** | * | ** | ** |
年份 Year | ** | ** | ** | NS | ** | ** | ** | ** |
播种量×行距 Sowing rate×row spacing | ** | ** | ** | * | NS | NS | ** | NS |
播种量×年份Sowing rate×year | NS | ** | NS | NS | NS | NS | NS | NS |
行距×年份Row spacing×year | NS | NS | NS | NS | NS | NS | NS | NS |
播种量×行距×年份Sowing rate×row spacing×year | NS | * | NS | NS | NS | NS | NS | NS |
Table 2 Analysis of variance of alfalfa agronomic traits, yield and nutritional indicators
因素 Factor | 株高 Plant height | 分枝数 Branch number | 叶茎比 Leaf/ stem | 干草产量 Hay yield | 粗蛋白 Crude protein | 中性洗涤纤维 Neutral detergent fiber | 酸性洗涤纤维 Acid detergent fiber | 相对饲喂价值 Relative feed value |
---|---|---|---|---|---|---|---|---|
播种量 Sowing rate | NS | * | * | * | * | NS | * | NS |
行距 Row spacing | NS | * | ** | ** | ** | * | ** | ** |
年份 Year | ** | ** | ** | NS | ** | ** | ** | ** |
播种量×行距 Sowing rate×row spacing | ** | ** | ** | * | NS | NS | ** | NS |
播种量×年份Sowing rate×year | NS | ** | NS | NS | NS | NS | NS | NS |
行距×年份Row spacing×year | NS | NS | NS | NS | NS | NS | NS | NS |
播种量×行距×年份Sowing rate×row spacing×year | NS | * | NS | NS | NS | NS | NS | NS |
指标 Index | 株高Plant height (cm) | 一级分枝数Branch number (plant·m-1) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量 Sowing rate | ||||||||
S1 | 77.41b | 78.45a | 76.37a | 77.40a | 103b | 107b | 99b | 103b |
S2 | 78.71a | 78.91a | 75.62a | 77.41a | 106a | 114a | 104a | 108a |
S3 | 77.57ab | 78.82a | 75.14a | 77.17a | 99c | 101c | 99b | 99c |
行距 Row spacing | ||||||||
R1 | 76.95b | 78.17b | 75.65a | 76.92b | 101c | 107b | 99b | 102b |
R2 | 77.92ab | 77.98b | 75.67a | 76.74b | 103ab | 105b | 98b | 102b |
R3 | 78.91a | 80.39a | 76.13a | 78.48a | 105a | 113a | 105a | 108a |
R4 | 77.79ab | 78.36b | 75.39a | 77.18b | 102bc | 105b | 99b | 102b |
Table 3 Interaction of sowing rate and row spacing on alfalfa plant height and branch number
指标 Index | 株高Plant height (cm) | 一级分枝数Branch number (plant·m-1) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量 Sowing rate | ||||||||
S1 | 77.41b | 78.45a | 76.37a | 77.40a | 103b | 107b | 99b | 103b |
S2 | 78.71a | 78.91a | 75.62a | 77.41a | 106a | 114a | 104a | 108a |
S3 | 77.57ab | 78.82a | 75.14a | 77.17a | 99c | 101c | 99b | 99c |
行距 Row spacing | ||||||||
R1 | 76.95b | 78.17b | 75.65a | 76.92b | 101c | 107b | 99b | 102b |
R2 | 77.92ab | 77.98b | 75.67a | 76.74b | 103ab | 105b | 98b | 102b |
R3 | 78.91a | 80.39a | 76.13a | 78.48a | 105a | 113a | 105a | 108a |
R4 | 77.79ab | 78.36b | 75.39a | 77.18b | 102bc | 105b | 99b | 102b |
播种量Sowing rate | 行距 Row spacing | 株高Plant height (cm) | 一级分枝数Branch number (plant·m-1) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 76.00±1.99cd | 78.00±1.13bc | 75.20±2.11bc | 76.40±1.74c | 100±3d | 107±2d | 98±5d | 102±3c |
R2 | 76.29±1.62cd | 77.25±0.78cd | 76.37±2.00bc | 76.64±1.47c | 108±4b | 106±3de | 96±4ef | 104±4bc | |
R3 | 78.96±0.93ab | 79.32±2.17bc | 77.59±2.31b | 78.62±1.77b | 98±4ef | 112±5bc | 102±3bc | 104±4bc | |
R4 | 78.38±1.65b | 79.21±0.89bc | 76.32±2.40bc | 77.97±1.65bc | 107±5b | 102±4e | 99±4cd | 103±2bc | |
S2 | R1 | 76.81±3.52cd | 77.31±1.23cd | 75.37±3.11bc | 76.50±2.64c | 99±3e | 108±5c | 97±4e | 102±3c |
R2 | 75.17±2.86d | 76.37±2.86d | 73.21±3.86bc | 74.92±3.19e | 97±2f | 104±4de | 98±5de | 100±2d | |
R3 | 80.93±2.77a | 83.52±1.62a | 78.59±2.73a | 81.01±2.37a | 120±4a | 129±3a | 114±5a | 121±4a | |
R4 | 77.92±2.48c | 78.43±3.67bc | 75.32±4.21bc | 77.22±3.45bc | 107±5b | 114±4b | 105±3b | 109±3b | |
S3 | R1 | 78.05±2.83bc | 79.20±1.91bc | 76.37±4.45bc | 77.87±3.06bc | 102±6cd | 104±5de | 101±4c | 103±1bc |
R2 | 78.30±4.65b | 80.31±1.27b | 77.43±5.19bc | 78.68±3.71b | 103±5c | 105±7de | 99±4cd | 103±2bc | |
R3 | 76.84±3.26cd | 78.32±3.41bc | 72.21±3.84d | 75.79±3.50d | 96±4fg | 96±4f | 98±3d | 97±1e | |
R4 | 77.08±3.61cd | 77.44±3.15c | 74.53±4.47c | 76.35±3.74c | 93±5g | 96±3f | 94±5f | 95±1e |
Table 4 The effect of sowing rate and row spacing on alfalfa plant height and branch number
播种量Sowing rate | 行距 Row spacing | 株高Plant height (cm) | 一级分枝数Branch number (plant·m-1) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 76.00±1.99cd | 78.00±1.13bc | 75.20±2.11bc | 76.40±1.74c | 100±3d | 107±2d | 98±5d | 102±3c |
R2 | 76.29±1.62cd | 77.25±0.78cd | 76.37±2.00bc | 76.64±1.47c | 108±4b | 106±3de | 96±4ef | 104±4bc | |
R3 | 78.96±0.93ab | 79.32±2.17bc | 77.59±2.31b | 78.62±1.77b | 98±4ef | 112±5bc | 102±3bc | 104±4bc | |
R4 | 78.38±1.65b | 79.21±0.89bc | 76.32±2.40bc | 77.97±1.65bc | 107±5b | 102±4e | 99±4cd | 103±2bc | |
S2 | R1 | 76.81±3.52cd | 77.31±1.23cd | 75.37±3.11bc | 76.50±2.64c | 99±3e | 108±5c | 97±4e | 102±3c |
R2 | 75.17±2.86d | 76.37±2.86d | 73.21±3.86bc | 74.92±3.19e | 97±2f | 104±4de | 98±5de | 100±2d | |
R3 | 80.93±2.77a | 83.52±1.62a | 78.59±2.73a | 81.01±2.37a | 120±4a | 129±3a | 114±5a | 121±4a | |
R4 | 77.92±2.48c | 78.43±3.67bc | 75.32±4.21bc | 77.22±3.45bc | 107±5b | 114±4b | 105±3b | 109±3b | |
S3 | R1 | 78.05±2.83bc | 79.20±1.91bc | 76.37±4.45bc | 77.87±3.06bc | 102±6cd | 104±5de | 101±4c | 103±1bc |
R2 | 78.30±4.65b | 80.31±1.27b | 77.43±5.19bc | 78.68±3.71b | 103±5c | 105±7de | 99±4cd | 103±2bc | |
R3 | 76.84±3.26cd | 78.32±3.41bc | 72.21±3.84d | 75.79±3.50d | 96±4fg | 96±4f | 98±3d | 97±1e | |
R4 | 77.08±3.61cd | 77.44±3.15c | 74.53±4.47c | 76.35±3.74c | 93±5g | 96±3f | 94±5f | 95±1e |
指标 Index | 叶茎比Leaf/stem | 干草产量Hay yield (t·hm-2) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 0.74c | 0.77c | 0.75c | 0.75c | 15.76b | 15.62b | 15.30ab | 15.56b |
S2 | 0.82a | 0.85a | 0.83a | 0.83a | 16.56a | 17.07a | 16.02a | 16.55a |
S3 | 0.77b | 0.79b | 0.78b | 0.78b | 16.04b | 16.02b | 15.17b | 15.74b |
行距Row spacing | ||||||||
R1 | 0.76b | 0.80ab | 0.78b | 0.78bc | 16.10b | 16.52ab | 15.36b | 15.99b |
R2 | 0.79a | 0.79ab | 0.79b | 0.79ab | 15.81bc | 15.48c | 15.17b | 15.49c |
R3 | 0.80a | 0.81a | 0.82a | 0.81a | 17.24a | 17.21a | 16.55a | 17.00a |
R4 | 0.75b | 0.79b | 0.75c | 0.76c | 15.33c | 15.73bc | 14.90b | 15.32c |
Table 5 Interaction of sowing rate and row spacing on the leaf-to-stem ratio and hay yield of alfalfa
指标 Index | 叶茎比Leaf/stem | 干草产量Hay yield (t·hm-2) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 0.74c | 0.77c | 0.75c | 0.75c | 15.76b | 15.62b | 15.30ab | 15.56b |
S2 | 0.82a | 0.85a | 0.83a | 0.83a | 16.56a | 17.07a | 16.02a | 16.55a |
S3 | 0.77b | 0.79b | 0.78b | 0.78b | 16.04b | 16.02b | 15.17b | 15.74b |
行距Row spacing | ||||||||
R1 | 0.76b | 0.80ab | 0.78b | 0.78bc | 16.10b | 16.52ab | 15.36b | 15.99b |
R2 | 0.79a | 0.79ab | 0.79b | 0.79ab | 15.81bc | 15.48c | 15.17b | 15.49c |
R3 | 0.80a | 0.81a | 0.82a | 0.81a | 17.24a | 17.21a | 16.55a | 17.00a |
R4 | 0.75b | 0.79b | 0.75c | 0.76c | 15.33c | 15.73bc | 14.90b | 15.32c |
播种量 Sowing rate | 行距 Row spacing | 叶茎比Leaf/stem | 干草产量Hay yield (t·hm-2) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 0.72±0.02g | 0.74±0.01e | 0.72±0.09f | 0.73±0.05e | 14.85±0.32f | 15.12±0.21c | 14.62±0.19de | 14.86±0.15cd |
R2 | 0.74±0.02f | 0.76±0.03de | 0.74±0.03e | 0.75±0.03d | 15.07±0.42e | 15.17±0.23c | 14.98±0.13d | 15.07±0.05cd | |
R3 | 0.75±0.02ef | 0.79±0.02c | 0.77±0.06d | 0.77±0.04c | 18.09±0.12ab | 16.33±0.22b | 16.37±0.16b | 16.93±0.58b | |
R4 | 0.73±0.04fg | 0.77±0.01d | 0.76±0.03de | 0.75±0.03d | 15.02±0.14e | 15.85±0.51bc | 15.21±0.43cd | 15.36±0.25cd | |
S2 | R1 | 0.81±0.03c | 0.85±0.06b | 0.82±0.01bc | 0.83±0.01b | 17.24±0.43b | 18.21±0.26a | 16.59±0.21ab | 17.35±0.47b |
R2 | 0.83±0.05b | 0.79±0.01c | 0.83±0.03b | 0.82±0.03b | 15.67±0.15de | 15.89±0.21bc | 15.32±0.23c | 15.63±0.17cd | |
R3 | 0.87±0.01a | 0.91±0.02a | 0.89±0.02a | 0.89±0.02a | 18.37±0.21a | 18.98±0.22a | 17.89±0.12a | 18.41±0.32a | |
R4 | 0.75±0.03ef | 0.83±0.02b | 0.78±0.03cd | 0.79±0.03bc | 14.96±0.13ef | 15.21±0.32c | 14.27±0.23e | 14.81±0.28d | |
S3 | R1 | 0.76±0.03e | 0.82±0.02bc | 0.80±0.08c | 0.79±0.03bc | 16.20±0.13cd | 16.24±0.42b | 14.88±0.28d | 15.77±0.45c |
R2 | 0.79±0.03d | 0.83±0.03b | 0.79±0.01cd | 0.80±0.01bc | 16.68±0.13c | 15.37±0.33c | 15.22±0.11cd | 15.76±0.46c | |
R3 | 0.77±0.01de | 0.73±0.01e | 0.81±0.01bc | 0.77±0.01c | 15.26±0.21de | 16.33±0.21b | 15.38±0.21c | 15.66±0.34cd | |
R4 | 0.76±0.05e | 0.77±0.01d | 0.71±0.02g | 0.75±0.02d | 16.01±0.25d | 16.12±0.31b | 15.21±0.12cd | 15.78±0.29c |
Table 6 The effect of different sowing rate and row spacing on the leaf-stem ratio and hay yield of alfalfa
播种量 Sowing rate | 行距 Row spacing | 叶茎比Leaf/stem | 干草产量Hay yield (t·hm-2) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 0.72±0.02g | 0.74±0.01e | 0.72±0.09f | 0.73±0.05e | 14.85±0.32f | 15.12±0.21c | 14.62±0.19de | 14.86±0.15cd |
R2 | 0.74±0.02f | 0.76±0.03de | 0.74±0.03e | 0.75±0.03d | 15.07±0.42e | 15.17±0.23c | 14.98±0.13d | 15.07±0.05cd | |
R3 | 0.75±0.02ef | 0.79±0.02c | 0.77±0.06d | 0.77±0.04c | 18.09±0.12ab | 16.33±0.22b | 16.37±0.16b | 16.93±0.58b | |
R4 | 0.73±0.04fg | 0.77±0.01d | 0.76±0.03de | 0.75±0.03d | 15.02±0.14e | 15.85±0.51bc | 15.21±0.43cd | 15.36±0.25cd | |
S2 | R1 | 0.81±0.03c | 0.85±0.06b | 0.82±0.01bc | 0.83±0.01b | 17.24±0.43b | 18.21±0.26a | 16.59±0.21ab | 17.35±0.47b |
R2 | 0.83±0.05b | 0.79±0.01c | 0.83±0.03b | 0.82±0.03b | 15.67±0.15de | 15.89±0.21bc | 15.32±0.23c | 15.63±0.17cd | |
R3 | 0.87±0.01a | 0.91±0.02a | 0.89±0.02a | 0.89±0.02a | 18.37±0.21a | 18.98±0.22a | 17.89±0.12a | 18.41±0.32a | |
R4 | 0.75±0.03ef | 0.83±0.02b | 0.78±0.03cd | 0.79±0.03bc | 14.96±0.13ef | 15.21±0.32c | 14.27±0.23e | 14.81±0.28d | |
S3 | R1 | 0.76±0.03e | 0.82±0.02bc | 0.80±0.08c | 0.79±0.03bc | 16.20±0.13cd | 16.24±0.42b | 14.88±0.28d | 15.77±0.45c |
R2 | 0.79±0.03d | 0.83±0.03b | 0.79±0.01cd | 0.80±0.01bc | 16.68±0.13c | 15.37±0.33c | 15.22±0.11cd | 15.76±0.46c | |
R3 | 0.77±0.01de | 0.73±0.01e | 0.81±0.01bc | 0.77±0.01c | 15.26±0.21de | 16.33±0.21b | 15.38±0.21c | 15.66±0.34cd | |
R4 | 0.76±0.05e | 0.77±0.01d | 0.71±0.02g | 0.75±0.02d | 16.01±0.25d | 16.12±0.31b | 15.21±0.12cd | 15.78±0.29c |
指标 Index | 中性洗涤纤维Neutral detergent fiber (NDF, %) | 酸性洗涤纤维Acid detergent fiber (ADF, %) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 38.12a | 38.75b | 37.79a | 38.22a | 27.61b | 26.07a | 28.56b | 27.41a |
S2 | 37.39b | 38.17b | 36.63b | 37.39b | 27.63b | 24.89b | 29.86a | 27.46a |
S3 | 37.55ab | 39.76a | 38.10a | 38.47a | 28.63a | 26.57a | 29.91a | 28.37a |
行距Row spacing | ||||||||
R1 | 38.51a | 39.49a | 37.36b | 38.46a | 27.12bc | 25.80ab | 28.95b | 27.29a |
R2 | 37.04b | 38.59ab | 36.55b | 37.39b | 26.89c | 25.49b | 29.69ab | 27.36a |
R3 | 37.24ab | 37.75b | 37.53b | 37.51b | 29.78a | 25.36b | 29.02b | 28.05a |
R4 | 37.94ab | 39.74a | 38.59a | 38.76a | 28.03b | 26.71a | 30.11a | 28.28a |
Table 7 Interaction of sowing rate and row spacing on NDF and ADF content of alfalfa
指标 Index | 中性洗涤纤维Neutral detergent fiber (NDF, %) | 酸性洗涤纤维Acid detergent fiber (ADF, %) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 38.12a | 38.75b | 37.79a | 38.22a | 27.61b | 26.07a | 28.56b | 27.41a |
S2 | 37.39b | 38.17b | 36.63b | 37.39b | 27.63b | 24.89b | 29.86a | 27.46a |
S3 | 37.55ab | 39.76a | 38.10a | 38.47a | 28.63a | 26.57a | 29.91a | 28.37a |
行距Row spacing | ||||||||
R1 | 38.51a | 39.49a | 37.36b | 38.46a | 27.12bc | 25.80ab | 28.95b | 27.29a |
R2 | 37.04b | 38.59ab | 36.55b | 37.39b | 26.89c | 25.49b | 29.69ab | 27.36a |
R3 | 37.24ab | 37.75b | 37.53b | 37.51b | 29.78a | 25.36b | 29.02b | 28.05a |
R4 | 37.94ab | 39.74a | 38.59a | 38.76a | 28.03b | 26.71a | 30.11a | 28.28a |
播量 Sowing rate | 行距 Row spacing | 中性洗涤纤维Neutral detergent fiber (%) | 酸性洗涤纤维Acid detergent fiber (%) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 38.48±0.95a | 37.25±0.5bc | 39.76±0.8ab | 38.50±0.72ab | 26.15±1.95e | 26.58±0.9b | 28.05±0.9c | 26.93±0.58ab |
R2 | 38.77±0.84a | 37.77±0.6bc | 38.22±0.7bc | 38.25±0.29ab | 26.67±0.84de | 24.72±0.8cd | 28.37±1.1c | 26.59±1.05b | |
R3 | 37.09±0.61bc | 38.02±0.7b | 37.49±0.6c | 37.53±0.27b | 28.44±1.61bc | 25.37±0.7c | 28.32±0.5c | 27.38±1.00ab | |
R4 | 38.14±0.46ab | 38.13±0.5b | 39.53±0.5ab | 38.60±0.47ab | 29.18±1.46b | 27.59±1.2a | 29.51±0.7b | 28.76±0.59ab | |
S2 | R1 | 38.69±0.46a | 36.52±0.7c | 37.50±0.6c | 37.57±0.63b | 26.77±1.46d | 25.33±0.7c | 29.67±0.70b | 27.26±1.28ab |
R2 | 35.82±0.61c | 35.35±0.7d | 38.34±0.7bc | 36.50±0.93c | 27.45±1.61c | 24.52±0.7cd | 31.10±0.80ab | 27.69±1.90ab | |
R3 | 36.90±0.66bc | 36.20±0.9cd | 36.52±0.5d | 36.54±0.20c | 29.55±1.66ab | 24.39±0.9d | 29.21±0.89bc | 27.72±1.67ab | |
R4 | 38.15±0.58ab | 38.45±0.8ab | 40.31±0.7ab | 38.97±0.68ab | 26.74±1.58d | 25.32±0.8c | 29.47±0.80bc | 27.18±1.22ab | |
S3 | R1 | 38.37±0.55ab | 38.32±0.6ab | 41.22±0.7a | 39.30±0.96a | 28.44±0.55bc | 25.49±0.6c | 29.14±0.7bc | 27.69±1.12ab |
R2 | 36.53±0.52bc | 36.52±0.4c | 39.22±0.5b | 37.42±0.90b | 26.56±0.52de | 27.25±0.7ab | 29.59±0.5b | 27.80±0.92ab | |
R3 | 37.74±0.40b | 38.37±0.6ab | 39.24±0.4b | 38.45±0.43ab | 31.34±1.40a | 26.31±0.9bc | 29.53±0.9b | 29.06±1.47a | |
R4 | 37.54±0.49b | 39.20±0.6a | 39.37±0.5b | 38.70±0.58ab | 28.17±1.49bc | 27.22±0.6ab | 31.36±0.5a | 28.92±1.25a |
Table 8 Effects of sowing rate and row spacing on NDF and ADF content of alfalfa
播量 Sowing rate | 行距 Row spacing | 中性洗涤纤维Neutral detergent fiber (%) | 酸性洗涤纤维Acid detergent fiber (%) | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 38.48±0.95a | 37.25±0.5bc | 39.76±0.8ab | 38.50±0.72ab | 26.15±1.95e | 26.58±0.9b | 28.05±0.9c | 26.93±0.58ab |
R2 | 38.77±0.84a | 37.77±0.6bc | 38.22±0.7bc | 38.25±0.29ab | 26.67±0.84de | 24.72±0.8cd | 28.37±1.1c | 26.59±1.05b | |
R3 | 37.09±0.61bc | 38.02±0.7b | 37.49±0.6c | 37.53±0.27b | 28.44±1.61bc | 25.37±0.7c | 28.32±0.5c | 27.38±1.00ab | |
R4 | 38.14±0.46ab | 38.13±0.5b | 39.53±0.5ab | 38.60±0.47ab | 29.18±1.46b | 27.59±1.2a | 29.51±0.7b | 28.76±0.59ab | |
S2 | R1 | 38.69±0.46a | 36.52±0.7c | 37.50±0.6c | 37.57±0.63b | 26.77±1.46d | 25.33±0.7c | 29.67±0.70b | 27.26±1.28ab |
R2 | 35.82±0.61c | 35.35±0.7d | 38.34±0.7bc | 36.50±0.93c | 27.45±1.61c | 24.52±0.7cd | 31.10±0.80ab | 27.69±1.90ab | |
R3 | 36.90±0.66bc | 36.20±0.9cd | 36.52±0.5d | 36.54±0.20c | 29.55±1.66ab | 24.39±0.9d | 29.21±0.89bc | 27.72±1.67ab | |
R4 | 38.15±0.58ab | 38.45±0.8ab | 40.31±0.7ab | 38.97±0.68ab | 26.74±1.58d | 25.32±0.8c | 29.47±0.80bc | 27.18±1.22ab | |
S3 | R1 | 38.37±0.55ab | 38.32±0.6ab | 41.22±0.7a | 39.30±0.96a | 28.44±0.55bc | 25.49±0.6c | 29.14±0.7bc | 27.69±1.12ab |
R2 | 36.53±0.52bc | 36.52±0.4c | 39.22±0.5b | 37.42±0.90b | 26.56±0.52de | 27.25±0.7ab | 29.59±0.5b | 27.80±0.92ab | |
R3 | 37.74±0.40b | 38.37±0.6ab | 39.24±0.4b | 38.45±0.43ab | 31.34±1.40a | 26.31±0.9bc | 29.53±0.9b | 29.06±1.47a | |
R4 | 37.54±0.49b | 39.20±0.6a | 39.37±0.5b | 38.70±0.58ab | 28.17±1.49bc | 27.22±0.6ab | 31.36±0.5a | 28.92±1.25a |
指标 Index | 粗蛋白 Crude protein (CP, %) | 相对饲喂价值 Relative feed value (RFV) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 18.78b | 20.04c | 18.07b | 19.10b | 164.57c | 168.95b | 160.36a | 164.48ab |
S2 | 19.73a | 21.26a | 18.67a | 19.89a | 167.80a | 176.79a | 160.23a | 168.22a |
S3 | 19.53ab | 20.53b | 18.04b | 19.36b | 165.39b | 166.71b | 153.89b | 161.75b |
行距Row spacing | ||||||||
R1 | 19.06b | 20.01b | 18.08b | 19.05c | 163.90b | 171.46a | 156.83b | 163.85bc |
R2 | 19.12b | 20.18b | 17.95b | 19.08c | 170.95a | 175.94a | 158.68ab | 168.42a |
R3 | 20.13a | 21.31a | 18.81a | 20.08a | 164.30b | 171.63a | 163.85a | 166.40ab |
R4 | 19.61ab | 20.91a | 18.20b | 19.58b | 164.52b | 164.22b | 153.27b | 160.59c |
Table 9 Interaction of sowing rate and row spacing on CP content and RFV of alfalfa
指标 Index | 粗蛋白 Crude protein (CP, %) | 相对饲喂价值 Relative feed value (RFV) | ||||||
---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均Average | 2018 | 2019 | 2020 | 平均Average | |
播种量Sowing rate | ||||||||
S1 | 18.78b | 20.04c | 18.07b | 19.10b | 164.57c | 168.95b | 160.36a | 164.48ab |
S2 | 19.73a | 21.26a | 18.67a | 19.89a | 167.80a | 176.79a | 160.23a | 168.22a |
S3 | 19.53ab | 20.53b | 18.04b | 19.36b | 165.39b | 166.71b | 153.89b | 161.75b |
行距Row spacing | ||||||||
R1 | 19.06b | 20.01b | 18.08b | 19.05c | 163.90b | 171.46a | 156.83b | 163.85bc |
R2 | 19.12b | 20.18b | 17.95b | 19.08c | 170.95a | 175.94a | 158.68ab | 168.42a |
R3 | 20.13a | 21.31a | 18.81a | 20.08a | 164.30b | 171.63a | 163.85a | 166.40ab |
R4 | 19.61ab | 20.91a | 18.20b | 19.58b | 164.52b | 164.22b | 153.27b | 160.59c |
播种量Sowing rate | 行距Row spacing | 粗蛋白 Crude protein (%) | 相对饲喂价值 Relative feed value | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均verage | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 18.82±0.66c | 19.31±0.21d | 18.02±0.41b | 18.72±0.38d | 165.88±10.12b | 170.47±4.00b | 157.41±4.64b | 164.28±3.94ab |
R2 | 19.08±0.41bc | 20.21±0.32c | 17.93±0.64c | 19.07±0.66c | 163.59±6.28bc | 171.57±7.00b | 162.75±5.12ab | 165.85±2.85ab | |
R3 | 19.69±0.42b | 20.39±0.21bc | 18.01±0.52bc | 19.36±0.71bc | 167.42±5.95b | 169.31±6.23bc | 166.17±5.32ab | 167.47±0.96ab | |
R4 | 19.13±0.31bc | 20.23±0.15c | 18.32±0.61b | 19.23±0.55bc | 161.37±4.39c | 164.44±6.12c | 155.11±5.46c | 160.31±2.75b | |
S2 | R1 | 19.10±0.51bc | 20.15±0.30c | 18.22±0.51b | 19.16±0.56c | 163.73±7.43bc | 176.21±5.23ab | 163.31±5.44ab | 167.66±4.26ab |
R2 | 19.36±0.53bc | 21.02±0.37b | 17.92±0.97c | 19.43±0.90bc | 175.42±4.51a | 183.79±6.43a | 156.91±5.61b | 171.98±7.91a | |
R3 | 20.47±0.43a | 22.33±0.21a | 20.21±0.36a | 21.00±0.67a | 166.07±5.16b | 179.64±5.62ab | 168.50±5.54a | 171.39±4.17a | |
R4 | 19.99±0.52b | 21.52±0.23ab | 18.33±0.26b | 19.95±0.92b | 165.97±7.22b | 167.49±4.51bc | 152.21±6.12d | 161.84±4.85b | |
S3 | R1 | 19.25±0.61bc | 20.58±0.24bc | 18.01±0.34bc | 19.28±0.74bc | 162.09±6.81c | 167.71±5.33bc | 149.77±6.23d | 159.61±5.37b |
R2 | 18.93±0.41bc | 19.31±0.14d | 17.99±0.28c | 18.74±0.39d | 173.85±7.12ab | 172.46±3.91b | 156.38±6.74b | 167.42±5.63ab | |
R3 | 20.21±0.51ab | 21.22±0.41ab | 18.20±0.41b | 19.88±0.89b | 159.41±5.18c | 165.95±7.12c | 156.89±6.42b | 160.33±2.86b | |
R4 | 19.71±0.42b | 20.99±0.32b | 17.96±0.19c | 19.55±0.88bc | 166.22±6.72b | 160.73±6.23d | 152.50±7.11cd | 159.63±3.95b |
Table 10 Effects of sowing rate and row spacing on CP and RFV of alfalfa
播种量Sowing rate | 行距Row spacing | 粗蛋白 Crude protein (%) | 相对饲喂价值 Relative feed value | ||||||
---|---|---|---|---|---|---|---|---|---|
2018 | 2019 | 2020 | 平均verage | 2018 | 2019 | 2020 | 平均Average | ||
S1 | R1 | 18.82±0.66c | 19.31±0.21d | 18.02±0.41b | 18.72±0.38d | 165.88±10.12b | 170.47±4.00b | 157.41±4.64b | 164.28±3.94ab |
R2 | 19.08±0.41bc | 20.21±0.32c | 17.93±0.64c | 19.07±0.66c | 163.59±6.28bc | 171.57±7.00b | 162.75±5.12ab | 165.85±2.85ab | |
R3 | 19.69±0.42b | 20.39±0.21bc | 18.01±0.52bc | 19.36±0.71bc | 167.42±5.95b | 169.31±6.23bc | 166.17±5.32ab | 167.47±0.96ab | |
R4 | 19.13±0.31bc | 20.23±0.15c | 18.32±0.61b | 19.23±0.55bc | 161.37±4.39c | 164.44±6.12c | 155.11±5.46c | 160.31±2.75b | |
S2 | R1 | 19.10±0.51bc | 20.15±0.30c | 18.22±0.51b | 19.16±0.56c | 163.73±7.43bc | 176.21±5.23ab | 163.31±5.44ab | 167.66±4.26ab |
R2 | 19.36±0.53bc | 21.02±0.37b | 17.92±0.97c | 19.43±0.90bc | 175.42±4.51a | 183.79±6.43a | 156.91±5.61b | 171.98±7.91a | |
R3 | 20.47±0.43a | 22.33±0.21a | 20.21±0.36a | 21.00±0.67a | 166.07±5.16b | 179.64±5.62ab | 168.50±5.54a | 171.39±4.17a | |
R4 | 19.99±0.52b | 21.52±0.23ab | 18.33±0.26b | 19.95±0.92b | 165.97±7.22b | 167.49±4.51bc | 152.21±6.12d | 161.84±4.85b | |
S3 | R1 | 19.25±0.61bc | 20.58±0.24bc | 18.01±0.34bc | 19.28±0.74bc | 162.09±6.81c | 167.71±5.33bc | 149.77±6.23d | 159.61±5.37b |
R2 | 18.93±0.41bc | 19.31±0.14d | 17.99±0.28c | 18.74±0.39d | 173.85±7.12ab | 172.46±3.91b | 156.38±6.74b | 167.42±5.63ab | |
R3 | 20.21±0.51ab | 21.22±0.41ab | 18.20±0.41b | 19.88±0.89b | 159.41±5.18c | 165.95±7.12c | 156.89±6.42b | 160.33±2.86b | |
R4 | 19.71±0.42b | 20.99±0.32b | 17.96±0.19c | 19.55±0.88bc | 166.22±6.72b | 160.73±6.23d | 152.50±7.11cd | 159.63±3.95b |
主成分 Principal component | 初始特征值Variance of initial eigen values | 主成分 Principal component | 初始特征值Variance of initial eigen values | ||||
---|---|---|---|---|---|---|---|
特征值 Eigenvalue | 方差贡献率 Variance contribution (%) | 累积贡献率 Accumulative contribution (%) | 特征值 Eigenvalue | 方差贡献率 Variance contribution (%) | 累积贡献率 Accumulative contribution (%) | ||
1 | 4.297 | 53.713 | 53.713 | 5 | 0.279 | 3.487 | 97.428 |
2 | 1.584 | 19.803 | 73.516 | 6 | 0.181 | 2.268 | 99.696 |
3 | 1.123 | 14.037 | 87.553 | 7 | 0.024 | 0.297 | 99.993 |
4 | 0.511 | 6.388 | 93.941 | 8 | 0.001 | 0.007 | 100.000 |
Table 11 Eigen values of principal components
主成分 Principal component | 初始特征值Variance of initial eigen values | 主成分 Principal component | 初始特征值Variance of initial eigen values | ||||
---|---|---|---|---|---|---|---|
特征值 Eigenvalue | 方差贡献率 Variance contribution (%) | 累积贡献率 Accumulative contribution (%) | 特征值 Eigenvalue | 方差贡献率 Variance contribution (%) | 累积贡献率 Accumulative contribution (%) | ||
1 | 4.297 | 53.713 | 53.713 | 5 | 0.279 | 3.487 | 97.428 |
2 | 1.584 | 19.803 | 73.516 | 6 | 0.181 | 2.268 | 99.696 |
3 | 1.123 | 14.037 | 87.553 | 7 | 0.024 | 0.297 | 99.993 |
4 | 0.511 | 6.388 | 93.941 | 8 | 0.001 | 0.007 | 100.000 |
项目 Item | 主成分1 Principal component 1 (Y1) | 主成分2 Principal component 2 (Y2) | 主成分3 Principal component 3 (Y3) | |||
---|---|---|---|---|---|---|
特征向量Feature vector | 载荷Load | 特征向量Feature vector | 载荷Load | 特征向量Feature vector | 载荷Load | |
株高Plant height (X1) | 0.331 | 0.686 | 0.291 | 0.366 | 0.413 | 0.438 |
分枝数Branch number (X2) | 0.398 | 0.825 | 0.110 | 0.139 | 0.473 | 0.501 |
叶茎比Leaf/stem (X3) | 0.434 | 0.900 | 0.059 | 0.074 | -0.154 | -0.163 |
干草产量Hay yield (X4) | 0.408 | 0.845 | 0.123 | 0.155 | -0.195 | -0.207 |
粗蛋白CP (X5) | 0.315 | 0.652 | 0.456 | 0.574 | -0.070 | -0.074 |
中性洗涤纤维NDF (X6) | -0.370 | -0.768 | 0.335 | 0.421 | 0.407 | 0.531 |
酸性洗涤纤维ADF (X7) | -0.101 | -0.209 | 0.567 | 0.714 | -0.584 | -0.619 |
相对饲喂价值RFV (X8) | 0.361 | 0.749 | -0.493 | -0.621 | -0.178 | -0.189 |
Table 12 The eigenvectors and load matrix corresponding to the principal components
项目 Item | 主成分1 Principal component 1 (Y1) | 主成分2 Principal component 2 (Y2) | 主成分3 Principal component 3 (Y3) | |||
---|---|---|---|---|---|---|
特征向量Feature vector | 载荷Load | 特征向量Feature vector | 载荷Load | 特征向量Feature vector | 载荷Load | |
株高Plant height (X1) | 0.331 | 0.686 | 0.291 | 0.366 | 0.413 | 0.438 |
分枝数Branch number (X2) | 0.398 | 0.825 | 0.110 | 0.139 | 0.473 | 0.501 |
叶茎比Leaf/stem (X3) | 0.434 | 0.900 | 0.059 | 0.074 | -0.154 | -0.163 |
干草产量Hay yield (X4) | 0.408 | 0.845 | 0.123 | 0.155 | -0.195 | -0.207 |
粗蛋白CP (X5) | 0.315 | 0.652 | 0.456 | 0.574 | -0.070 | -0.074 |
中性洗涤纤维NDF (X6) | -0.370 | -0.768 | 0.335 | 0.421 | 0.407 | 0.531 |
酸性洗涤纤维ADF (X7) | -0.101 | -0.209 | 0.567 | 0.714 | -0.584 | -0.619 |
相对饲喂价值RFV (X8) | 0.361 | 0.749 | -0.493 | -0.621 | -0.178 | -0.189 |
处理 Treatment | 主成分1 Y1 | 主成分2 Y2 | 主成分3 Y3 | 综合得分 Y | 排名 Ranking |
---|---|---|---|---|---|
S1R1 | -1.743 | -1.305 | 0.982 | -1.207 | 12 |
S1R2 | -0.890 | -1.410 | 1.095 | -0.689 | 9 |
S1R3 | 0.945 | -0.474 | 0.211 | 0.506 | 2 |
S1R4 | -1.298 | 1.289 | 0.056 | -0.496 | 8 |
S2R1 | 0.977 | -1.011 | -0.651 | 0.267 | 3 |
S2R2 | 0.663 | -1.890 | -1.847 | -0.317 | 7 |
S2R3 | 5.684 | 1.233 | 0.320 | 3.817 | 1 |
S2R4 | -0.420 | 0.590 | 1.474 | 0.112 | 4 |
S3R1 | -0.941 | 0.948 | 0.927 | -0.214 | 6 |
S3R2 | 0.416 | -0.764 | -0.075 | 0.071 | 5 |
S3R3 | -1.437 | 1.445 | -1.416 | -0.782 | 10 |
S3R4 | -1.957 | 1.348 | -1.075 | -1.068 | 11 |
Table 13 Comprehensive rankings and scores of sowing rate and row spacing
处理 Treatment | 主成分1 Y1 | 主成分2 Y2 | 主成分3 Y3 | 综合得分 Y | 排名 Ranking |
---|---|---|---|---|---|
S1R1 | -1.743 | -1.305 | 0.982 | -1.207 | 12 |
S1R2 | -0.890 | -1.410 | 1.095 | -0.689 | 9 |
S1R3 | 0.945 | -0.474 | 0.211 | 0.506 | 2 |
S1R4 | -1.298 | 1.289 | 0.056 | -0.496 | 8 |
S2R1 | 0.977 | -1.011 | -0.651 | 0.267 | 3 |
S2R2 | 0.663 | -1.890 | -1.847 | -0.317 | 7 |
S2R3 | 5.684 | 1.233 | 0.320 | 3.817 | 1 |
S2R4 | -0.420 | 0.590 | 1.474 | 0.112 | 4 |
S3R1 | -0.941 | 0.948 | 0.927 | -0.214 | 6 |
S3R2 | 0.416 | -0.764 | -0.075 | 0.071 | 5 |
S3R3 | -1.437 | 1.445 | -1.416 | -0.782 | 10 |
S3R4 | -1.957 | 1.348 | -1.075 | -1.068 | 11 |
1 | Shen X H, Li J D, Feng P, et al. Root physiological traits and cold hardiness of alfalfa grown alone or mix-sowed with meadow fescue. Acta Agriculturae Scandinavica, Section B-Soil & Plant Science, 2017, 67(3): 235-244. |
2 | Altinok S, Yurtseven E, Avci S, et al. The effects of different irrigation water salinities and leaching ratios on green and dry forage yields of alfalfa (Medicago sativa L.). Agriculture & Forestry, 2015, 61(1): 85-90. |
3 | He L, Liu Y, He H, et al. A molecular framework underlying the compound leaf pattern of Medicago truncatula. Nature Plants, 2020, 6(5): 1-11. |
4 | Wang Y, You Z, Ren P. Research progress on alfalfa (Medicago sativa L.) adaptability under drought stress. Agricultural Science & Technology, 2017, 18(2): 219-222. |
5 | Zheng M N, Liang X Z, Han Z S, et al. Productivity and nutritional value of 28 alfalfa varieties in the Yanmenguan area of Shanxi Province. Acta Prataculturae Sinica, 2018, 27(5): 97-108. |
郑敏娜, 梁秀芝, 韩志顺, 等. 不同苜蓿品种在雁门关地区的生产性能和营养价值研究. 草业学报, 2018, 27(5): 97-108. | |
6 | Dong Z, Shen X Y. Overall review of crop cultivation. Beijing: China Agricultural Press, 2000. |
董钻, 沈秀瑛. 作物栽培学总论. 北京: 中国农业出版社, 2000. | |
7 | Dong X, Li M Y, Ma Z R, et al. Preliminary study on the effect of different seeding amount and row spacing on alfalfa production performance. Heilongjiang Animal Science and Veterinary Medicine, 2020(8): 99-104. |
董秀, 李满有, 马忠仁, 等. 不同播种量与行距对紫花苜蓿生产性能影响的初步研究. 黑龙江畜牧兽医, 2020(8): 99-104. | |
8 | Wang Y H, Wang C Z, Li D F, et al. Effects of seeding rate on plant number, production performance, and quality of alfalfa. Acta Prataculturae Sinica, 2017, 26(2): 123-135. |
王彦华, 王成章, 李德锋, 等. 播种量和品种对紫花苜蓿植株动态变化、产量及品质的影响. 草业学报, 2017, 26(2): 123-135. | |
9 | Wang Y, Duan X Y, Zhang S C, et al. Influence of planting density on grass yield and other biological properties of Medicago sativa. Pratacultural Science, 2011, 28(7): 1400-1402. |
王莹, 段学义, 张胜昌, 等. 紫花苜蓿播种密度对草产量及其他生物学性状的影响. 草业科学, 2011, 28(7): 1400-1402. | |
10 | Wang K, Hao M M, Nan L L, et al. Effects of seeding rate and row spacing on productivity of alfalfa in the arid oasis region of Gansu Province. Journal of Gansu Agricultural University, 2020, 55(1): 128-135. |
汪堃, 郝明明, 南丽丽, 等. 播量和行距对荒漠灌区紫花苜蓿生产性能的影响. 甘肃农业大学学报, 2020, 55(1): 128-135. | |
11 | Nan L L, Shi S L, Guo Q E, et al. Effects of seeding rate and row spacing on nutritional value of alfalfa in the arid oasis region of Gansu Province. Acta Prataculturae Sinica, 2019, 28(1): 108-119. |
南丽丽, 师尚礼, 郭全恩, 等. 甘肃荒漠灌区播种量和行距对紫花苜蓿营养价值的影响. 草业学报, 2019, 28(1): 108-119. | |
12 | Lv H G, Kang J M, Long R C, et al. Effects of seeding rate and row spacing on the hay yield and quality of alfalfa in saline-alkali land. Acta Prataculturae Sinica, 2019, 28(3): 164-174. |
吕会刚, 康俊梅, 龙瑞才, 等. 播种量和行距配置对盐碱地紫花苜蓿草产量及品质的影响. 草业学报, 2019, 28(3): 164-174. | |
13 | Elfatih M A, Awad O A. Effect of seeding rate on growth and yield of two alfalfa (Medicago sativa L.) cultivars. World Association for Sustainable Development, 2012, 2: 141-154. |
14 | Zhang F, Kang J M, Zhao Z X, et al. Effect of between-row spacing and seeding rate on alfalfa hay yield and quality of Huang Huai Hai Plain. Pratacultural Science, 2018,35(12): 2960-2967. |
张帆, 康俊梅, 赵忠祥, 等. 行距和播种量对黄淮海平原紫花苜蓿产草量及品质的影响. 草业科学, 2018, 35(12): 2960-2967. | |
15 | Jefferson P G, Cutforth H W. Sward age and weather effects on alfalfa yield at a semi-arid location in southwestern Saskatchewan. Canadian Journal of Plant Science, 1997, 77: 595-599. |
16 | Ji L D, Guo X N, Sun Q, et al. Soil microbial biomass and activity in different land use types in Ningxia irrigation area. Ecology and Environmental Sciences, 2020, 29(3): 516-524. |
纪立东, 郭鑫年, 孙权, 等. 宁夏引黄灌区不同土地利用方式土壤微生物群落多样性研究. 生态环境学报, 2020, 29(3): 516-524. | |
17 | Zhang L Y. Feed analysis and feed quality inspection technology. Beijing: China Agricultural University Press, 2016. |
张丽英. 饲料分析及饲料质量检测技术. 北京: 中国农业大学出版社, 2016. | |
18 | Zhou D C, Shen Y Y, Wu H J, et al. Production performance of mixed grassland in the Loess Plateau of Longzhong. Pratacultural Science, 2021, 38(1): 147-159. |
周栋昌, 沈禹颖, 武慧娟, 等. 陇中黄土高原混播草地生产性能. 草业科学, 2021, 38(1): 147-159. | |
19 | Ren L J, Zhao L S, Chen Y K. Comprehensive evaluation of silage quality of whole corn silage for different varieties in northeast China based on principal component analysis and cluster analysis. Chinese Journal of Animal Nutrition, 2020, 32(8): 3856-3868. |
任丽娟, 赵连生, 陈雅坤, 等. 基于主成分分析和聚类分析方法综合评价东北地区不同品种全株玉米青贮饲料的青贮品质. 动物营养学报, 2020, 32(8): 3856-3868. | |
20 | Wang Y H, Li D F, Qi S L, et al. Effects of seeding rate and variety on branch number and plant height of alfalfa. Acta Prataculturae Sinica, 2017, 26(3): 183-190. |
王彦华, 李德锋, 齐胜利, 等. 播种量和品种对紫花苜蓿分枝数和株高的影响. 草业学报, 2017, 26(3): 183-190. | |
21 | Suttie J M. Hay and straw conservation: For small-scale farming and pastoral conditions. Food & Agriculture Organization, 2000, 29: 89-95. |
22 | Wei X Y. Research on alfalfa seeding rate and mixed seeding mode under drip irrigation. Yinchuan: Ningxia University, 2018. |
魏晓艳. 滴灌条件下苜蓿播种量及混播模式的研究. 银川: 宁夏大学, 2018. | |
23 | Lichner S, Khazim H. The relationship of number of stems and their weight to yields of lucerne (Medicago sativa L.). Herbage, 1987, 57(3): 41. |
24 | Hoveland C S, Bouton J H, Newsome J F, et al. Alfalfa establishment as affected by land preparation and seeding rate. Research Report-Georgia Agricultural Experiment Stations, 1987, 42: 4. |
25 | Meng K, Li X Y, Jia Z Y, et al. Effects of planting density on the growth, yield and nutritional quality of alfalfa in central Inner Mongolia. Acta Prataculturae Sinica, 2019, 28(7): 73-81. |
孟凯, 李星月, 贾振宇, 等. 种植密度对内蒙古中部地区苜蓿生长,饲草产量及营养品质影响. 草业学报, 2019, 28(7): 73-81. | |
26 | Liu D X, Liu G H, Yang Z M. The effects of planting and harvesting factors on hay yield and stem-leaf ratio of Medicago sativa. Acta Prataculturae Sinica, 2015, 24(3): 48-57. |
刘东霞, 刘贵河, 杨志敏. 种植及收获因子对紫花苜蓿干草产量和茎叶比的影响. 草业学报, 2015, 24(3): 48-57. | |
27 | Sun S X, Mao H M, Bi Y F. Study of the experiment of cultivation for alfalfa (Medicago sativa L.). Modern Agricultural Science and Technology, 2009(11): 210-211. |
孙仕仙, 毛华明, 毕玉芬. 苜蓿栽培试验研究. 现代农业科技, 2009(11): 210-211. | |
28 | Sha B P, Xie Y Z, Gao X Q, et al. Effects of coupling of drip irrigation water and fertilizer on yield and quality of alfalfa in the Yellow River irrigation district. Acta Prataculturae Sinica, 2021, 30(2): 102-114. |
沙栢平, 谢应忠, 高雪芹, 等. 地下滴灌水肥耦合对紫花苜蓿草产量及品质的影响. 草业学报, 2021, 30(2): 102-114. | |
29 | Kazemi M, Tahmasbi A M, Naserian A A, et al.Potential nutritive value of some forage species used as ruminants feed in Iran. African Journal of Biotechnology, 2012(11): 12110-12117. |
30 | Wei Y P, Nan L L, Yu C, et al. Effect of row spacing and planting density on the yield and quality of Medicago sativa. Pratacultural Science, 2017, 34(9): 1898-1905. |
魏永鹏, 南丽丽, 于闯, 等. 种植密度和行距配置对紫花苜蓿群体产量及品质的影响. 草业科学, 2017, 34(9): 1898-1905. | |
31 | Lloveras J, Chocarro C, Freixes O, et al.Yield, yield components, and forage nutritive value of alfalfa as affected by seeding rate under irrigated conditions. Agronomy Journal, 2008, 100(1): 191-197. |
32 | Miao X R, Sun Y M, Yu L, et al. Effects of nitrogen and phosphorus fertilizer rate on hay yield and nutritional quality of alfalfa under drip irrigation. Acta Prataculturae Sinica, 2019, 28(9): 55-66. |
苗晓茸, 孙艳梅, 于磊, 等. 氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响. 草业学报, 2019, 28(9): 55-66. |
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