草业学报 ›› 2021, Vol. 30 ›› Issue (3): 215-223.DOI: 10.11686/cyxb2020047
• 研究简报 • 上一篇
贾雨雷1,2(), 廖真1,2(), 汪丽芳1,2, 卜建超1,2, 林标声1,2,3, 林辉1,2, 苏德伟1,2, 鲁国东1,2, 林占熺1,2()
收稿日期:
2020-02-05
修回日期:
2020-10-10
出版日期:
2021-03-20
发布日期:
2021-03-09
通讯作者:
林占熺
作者简介:
Corresponding author. E-mail: lzxjuncao@163.com基金资助:
Yu-lei JIA1,2(), Zhen LIAO1,2(), Li-fang WANG1,2, Jian-chao BU1,2, Biao-sheng LIN1,2,3, Hui LIN1,2, De-wei SU1,2, Guo-dong LU1,2, Zhan-xi LIN1,2()
Received:
2020-02-05
Revised:
2020-10-10
Online:
2021-03-20
Published:
2021-03-09
Contact:
Zhan-xi LIN
摘要:
生物肥料替代部分化肥在植物种植中发挥了重要作用。利用从巨菌草根部筛选的优良内生固氮菌株制作菌草固氮菌肥,并进行田间随机完全区组试验,设不施肥(空白对照,CK0),灭菌的菌草固氮菌肥(基质对照,CK1),全量化肥(FHF),菌草固氮菌肥(T1),菌草固氮菌肥+75%化肥(T2)共5个处理,研究其对巨菌草生长、产量、营养品质及土壤理化性质的影响。结果表明:与不施肥相比,只施菌草固氮菌肥和菌草固氮菌肥+75%化肥处理均能显著促进巨菌草生长,提高其产量,改善巨菌草品质和土壤理化性质;与只施化肥相比,只施菌草固氮菌肥处理在不同程度上降低了巨菌草产量、粗纤维、木质素、粗灰分含量和土壤碱解氮、速效磷、速效钾、有机质含量;而菌草固氮菌肥+75%化肥处理下,巨菌草叶片数、分蘖数、粗蛋白、粗纤维、酸性洗涤纤维、木质素、粗灰分含量均显著高于只施化肥处理,巨菌草产量、株高、粗脂肪含量和土壤碱解氮、速效磷、速效钾、有机质含量比只施化肥高但差异不显著,中性洗涤纤维含量则低于只施化肥处理。因此,适当减施化肥配施菌草固氮菌肥(化肥菌草固氮菌肥+75%化肥)在稳定巨菌草产量的同时,也能够在一定程度上促进其生长,改善其营养品质和土壤理化性质。
贾雨雷, 廖真, 汪丽芳, 卜建超, 林标声, 林辉, 苏德伟, 鲁国东, 林占熺. 化肥减量配施菌草固氮菌肥对巨菌草生长、营养品质及土壤养分的影响[J]. 草业学报, 2021, 30(3): 215-223.
Yu-lei JIA, Zhen LIAO, Li-fang WANG, Jian-chao BU, Biao-sheng LIN, Hui LIN, De-wei SU, Guo-dong LU, Zhan-xi LIN. Effects of chemical fertilizer reduction and co-application with a JUNCAO nitrogen-fixing biofertilizer on growth and nutritional quality of Pennisetum giganteum and soil nutrient status[J]. Acta Prataculturae Sinica, 2021, 30(3): 215-223.
图1 不同处理对巨菌草株高、叶片数、分蘖数的影响不同字母表示差异显著(P<0.05)。Different small letters indicate significant difference at the P<0.05 level.
Fig. 1 Effects of different treatments on plant height, leaf number and tiller number of P. giganteum
处理Treatment | 产量Yield |
---|---|
CK0 | 2696.67±463.49c |
CK1 | 5076.67±646.86b |
FHF | 6463.33±442.14ab |
T1 | 6123.33±724.54ab |
T2 | 6970.00±914.91a |
表1 不同处理对巨菌草产量的影响
Table 1 Effects of different treatments on the yield of P. giganteum (mean±SD) (kg·hm-2)
处理Treatment | 产量Yield |
---|---|
CK0 | 2696.67±463.49c |
CK1 | 5076.67±646.86b |
FHF | 6463.33±442.14ab |
T1 | 6123.33±724.54ab |
T2 | 6970.00±914.91a |
处理 Treatment | 粗脂肪 Ether extract (g·kg-1) | 粗蛋白 Crude protein (%) | 粗纤维 Crude fiber (%) | 酸性洗涤纤维 Acid detergent fiber (%) | 中性洗涤纤维 Neutral detergent fiber (%) | 木质素 Lignin (%) | 粗灰分 Crude ash (%) |
---|---|---|---|---|---|---|---|
CK0 | 6.02±0.02b | 3.83±0.03c | 34.24±0.15c | 43.75±0.56b | 68.45±1.89a | 6.32±0.13d | 5.53±0.01d |
CK1 | 6.35±0.15b | 5.04±0.21b | 35.33±0.83c | 45.47±0.27a | 67.63±2.21ab | 8.43±0.26a | 5.63±0.03c |
FHF | 7.10±0.24a | 5.13±0.14b | 37.25±0.21b | 41.43±0.14c | 65.12±1.75abc | 6.65±0.05d | 6.22±0.02b |
T1 | 6.89±0.12a | 5.12±0.22b | 35.20±0.65c | 44.05±0.21b | 63.24±1.05bc | 7.34±0.14c | 5.55±0.04d |
T2 | 7.23±0.03a | 6.24±0.13a | 38.71±0.17a | 43.42±0.32b | 62.42±1.20c | 7.85±0.12b | 6.85±0.02a |
表2 不同处理对巨菌草营养品质的影响
Table 2 Effects of different treatments on nutrient quality of P. giganteum (mean±SD)
处理 Treatment | 粗脂肪 Ether extract (g·kg-1) | 粗蛋白 Crude protein (%) | 粗纤维 Crude fiber (%) | 酸性洗涤纤维 Acid detergent fiber (%) | 中性洗涤纤维 Neutral detergent fiber (%) | 木质素 Lignin (%) | 粗灰分 Crude ash (%) |
---|---|---|---|---|---|---|---|
CK0 | 6.02±0.02b | 3.83±0.03c | 34.24±0.15c | 43.75±0.56b | 68.45±1.89a | 6.32±0.13d | 5.53±0.01d |
CK1 | 6.35±0.15b | 5.04±0.21b | 35.33±0.83c | 45.47±0.27a | 67.63±2.21ab | 8.43±0.26a | 5.63±0.03c |
FHF | 7.10±0.24a | 5.13±0.14b | 37.25±0.21b | 41.43±0.14c | 65.12±1.75abc | 6.65±0.05d | 6.22±0.02b |
T1 | 6.89±0.12a | 5.12±0.22b | 35.20±0.65c | 44.05±0.21b | 63.24±1.05bc | 7.34±0.14c | 5.55±0.04d |
T2 | 7.23±0.03a | 6.24±0.13a | 38.71±0.17a | 43.42±0.32b | 62.42±1.20c | 7.85±0.12b | 6.85±0.02a |
处理 Treatment | 碱解氮 Alkaline hydrolysis nitrogen (mg·kg-1) | 速效磷 Available phosphorus (mg·kg-1) | 速效钾 Available potassium (mg·kg-1) | 有机质 Organic matter (g·kg-1) |
---|---|---|---|---|
CK0 | 58.02±2.31c | 21.03±0.56c | 97.54±3.45b | 41.61±2.35c |
CK1 | 63.71±1.56bc | 24.62±1.78c | 110.25±4.15a | 55.63±4.47b |
FHF | 82.73±2.52a | 38.74±2.24a | 119.34±2.65a | 62.25±5.65ab |
T1 | 69.51±2.63b | 34.43±0.36b | 115.63±3.17a | 63.61±5.49ab |
T2 | 86.43±3.46a | 39.72±1.67a | 118.35±4.56a | 67.75±3.32a |
表3 不同处理对土壤理化性质的影响
Table 3 Effects of different treatments on soil physical and chemical properties of P. giganteum (mean±SD)
处理 Treatment | 碱解氮 Alkaline hydrolysis nitrogen (mg·kg-1) | 速效磷 Available phosphorus (mg·kg-1) | 速效钾 Available potassium (mg·kg-1) | 有机质 Organic matter (g·kg-1) |
---|---|---|---|---|
CK0 | 58.02±2.31c | 21.03±0.56c | 97.54±3.45b | 41.61±2.35c |
CK1 | 63.71±1.56bc | 24.62±1.78c | 110.25±4.15a | 55.63±4.47b |
FHF | 82.73±2.52a | 38.74±2.24a | 119.34±2.65a | 62.25±5.65ab |
T1 | 69.51±2.63b | 34.43±0.36b | 115.63±3.17a | 63.61±5.49ab |
T2 | 86.43±3.46a | 39.72±1.67a | 118.35±4.56a | 67.75±3.32a |
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