Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (10): 53-63.DOI: 10.11686/cyxb2021414
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Xu-mei JIN(), Ying-ying WANG, Chong-yi LIU, Xin-yi CHEN, Ming-xiu LONG(), Shu-bin HE()
Received:
2021-11-10
Revised:
2022-02-09
Online:
2022-10-20
Published:
2022-09-14
Contact:
Ming-xiu LONG,Shu-bin HE
Xu-mei JIN, Ying-ying WANG, Chong-yi LIU, Xin-yi CHEN, Ming-xiu LONG, Shu-bin HE. Effects on soil nutrients and bacterial communities of different cover crops in an organic kiwifruit orchard in the Guanzhong region of China[J]. Acta Prataculturae Sinica, 2022, 31(10): 53-63.
处理 Treatment | 杂草株数 Number of weeds (plant·m-2) | 地上部鲜草产量 Aboveground fresh yield (g·m-2) |
---|---|---|
CK | 197a | 742.01bc |
Mode 1 | 108d | 1107.41a |
Mode 2 | 129b | 705.57c |
Mode 3 | 124c | 690.74c |
Mode 4 | 49e | 885.18b |
Table 1 Weed occurrence and aboveground fresh yield of different cover crops treatments
处理 Treatment | 杂草株数 Number of weeds (plant·m-2) | 地上部鲜草产量 Aboveground fresh yield (g·m-2) |
---|---|---|
CK | 197a | 742.01bc |
Mode 1 | 108d | 1107.41a |
Mode 2 | 129b | 705.57c |
Mode 3 | 124c | 690.74c |
Mode 4 | 49e | 885.18b |
处理 Treatment | 土层 Soil layer | |||
---|---|---|---|---|
0~5 cm | 5~10 cm | 10~15 cm | 15~20 cm | |
CK | 15.02±4.00a | 15.71±1.63a | 15.61±1.16a | 14.69±1.05a |
Mode 1 | 18.39±3.74a | 16.90±1.94a | 16.64±1.22a | 16.58±1.33a |
Mode 2 | 15.91±0.60a | 16.02±0.42a | 15.85±0.71a | 15.34±1.53a |
Mode 3 | 16.35±0.58a | 16.18±1.33a | 15.64±0.75a | 15.73±0.87a |
Mode 4 | 17.47±3.24a | 17.21±1.66a | 16.06±1.25a | 21.15±8.79a |
Table 2 Effect of different cover crops treatments on soil water content at a depth of 0-20 cm (%)
处理 Treatment | 土层 Soil layer | |||
---|---|---|---|---|
0~5 cm | 5~10 cm | 10~15 cm | 15~20 cm | |
CK | 15.02±4.00a | 15.71±1.63a | 15.61±1.16a | 14.69±1.05a |
Mode 1 | 18.39±3.74a | 16.90±1.94a | 16.64±1.22a | 16.58±1.33a |
Mode 2 | 15.91±0.60a | 16.02±0.42a | 15.85±0.71a | 15.34±1.53a |
Mode 3 | 16.35±0.58a | 16.18±1.33a | 15.64±0.75a | 15.73±0.87a |
Mode 4 | 17.47±3.24a | 17.21±1.66a | 16.06±1.25a | 21.15±8.79a |
处理 Treatment | 酸碱度 pH | 有机质 Organic matter content (g·kg-1) | 微生物碳 Microbial biomass carbon(mg·kg-1) | 微生物氮 Microbial biomass nitrogen (mg·kg-1) | 脲酶活性 Urease activity (mg·d-1·g-1) | 蔗糖酶活性 Sucrase activity (mg·d-1·g-1) | 碱性磷酸酶活性 Alkaline phosphatase activity (mg·d-1·g-1) | 过氧化氢酶活性 Catalase activity (mL·g-1) |
---|---|---|---|---|---|---|---|---|
CK | 8.08±0.03ab | 18.43±0.50d | 251.70±33.38a | 20.03±3.08b | 2.41±0.18c | 27.47±1.78d | 2.87±0.07b | 5.03±0.04b |
Mode 1 | 8.09±0.02ab | 25.55±1.12a | 316.46±40.51a | 27.29±2.24a | 3.37±0.26a | 44.17±2.17a | 3.46±0.12a | 5.56±0.33ab |
Mode 2 | 8.10±0.02a | 19.62±0.51cd | 263.40±48.33a | 23.04±2.29ab | 2.91±0.11b | 32.43±1.54c | 2.89±0.04b | 5.87±0.30a |
Mode 3 | 8.09±0.06ab | 20.50±1.61c | 236.37±69.03a | 21.17±1.67b | 2.93±0.14b | 33.24±3.34bc | 2.97±0.01b | 5.48±0.41ab |
Mode 4 | 8.01±0.05b | 22.72±0.90b | 237.53±44.16a | 21.60±2.53b | 3.20±0.07ab | 37.21±1.31b | 3.29±0.19a | 5.84±0.10a |
Table 3 Effects of different cover crops treatments on soil chemical and biological characteristics
处理 Treatment | 酸碱度 pH | 有机质 Organic matter content (g·kg-1) | 微生物碳 Microbial biomass carbon(mg·kg-1) | 微生物氮 Microbial biomass nitrogen (mg·kg-1) | 脲酶活性 Urease activity (mg·d-1·g-1) | 蔗糖酶活性 Sucrase activity (mg·d-1·g-1) | 碱性磷酸酶活性 Alkaline phosphatase activity (mg·d-1·g-1) | 过氧化氢酶活性 Catalase activity (mL·g-1) |
---|---|---|---|---|---|---|---|---|
CK | 8.08±0.03ab | 18.43±0.50d | 251.70±33.38a | 20.03±3.08b | 2.41±0.18c | 27.47±1.78d | 2.87±0.07b | 5.03±0.04b |
Mode 1 | 8.09±0.02ab | 25.55±1.12a | 316.46±40.51a | 27.29±2.24a | 3.37±0.26a | 44.17±2.17a | 3.46±0.12a | 5.56±0.33ab |
Mode 2 | 8.10±0.02a | 19.62±0.51cd | 263.40±48.33a | 23.04±2.29ab | 2.91±0.11b | 32.43±1.54c | 2.89±0.04b | 5.87±0.30a |
Mode 3 | 8.09±0.06ab | 20.50±1.61c | 236.37±69.03a | 21.17±1.67b | 2.93±0.14b | 33.24±3.34bc | 2.97±0.01b | 5.48±0.41ab |
Mode 4 | 8.01±0.05b | 22.72±0.90b | 237.53±44.16a | 21.60±2.53b | 3.20±0.07ab | 37.21±1.31b | 3.29±0.19a | 5.84±0.10a |
处理 Treatment | Chao1指数 Chao1 index | 特征序列数 Observed_otus | Goods_coverage指数 Goods_coverage index | Shannon指数 Shannon index |
---|---|---|---|---|
CK | 2588.44±632.27a | 2420.33±535.99a | 0.98±0.01a | 10.38±0.29a |
Mode 1 | 2870.95±282.03a | 2672.67±662.29a | 0.99±0.00a | 10.57±0.35a |
Mode 2 | 2858.65±382.02a | 2688.33±258.54a | 0.98±0.01a | 10.54±0.18a |
Mode 3 | 3040.59±771.79a | 2787.67±333.01a | 0.98±0.01a | 10.54±0.20a |
Mode 4 | 2748.83±236.40a | 2557.67±202.23a | 0.99±0.01a | 10.38±0.21a |
Table 4 Effect of different cover crops treatments on Alpha diversity of soil bacteria
处理 Treatment | Chao1指数 Chao1 index | 特征序列数 Observed_otus | Goods_coverage指数 Goods_coverage index | Shannon指数 Shannon index |
---|---|---|---|---|
CK | 2588.44±632.27a | 2420.33±535.99a | 0.98±0.01a | 10.38±0.29a |
Mode 1 | 2870.95±282.03a | 2672.67±662.29a | 0.99±0.00a | 10.57±0.35a |
Mode 2 | 2858.65±382.02a | 2688.33±258.54a | 0.98±0.01a | 10.54±0.18a |
Mode 3 | 3040.59±771.79a | 2787.67±333.01a | 0.98±0.01a | 10.54±0.20a |
Mode 4 | 2748.83±236.40a | 2557.67±202.23a | 0.99±0.01a | 10.38±0.21a |
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