Effects of microbial agents on soil nutrients,cotton yield and quality in drip irrigation cotton fields

doi:10.6048/j.issn.1001-4330.2024.01.004

Abstract

Abstract:

【Objective】 To study the effects of different application amounts of microbial agents on soil nutrient activation,cotton yield and quality with a view of providing a reference for the rational application of microbial agents in drip irrigation cotton fields. 【Methods】 The project scheme was designed by combining indoor culture experiment and field community experiment. Indoor culture test setting:the microbial agent was applied to the soil containing the culture box to incubate 0,5,10,15,20 d,respectively to analyze the maximum efficiency of the microbial agent on soil nutrient activation. Four treatments were set up in the field experiment:CK(no microbial agent),T₁(application of microbial agent 75 L/hm²),T₂(application of microbial agent 150 L/hm²),T₃(application of microbial agent 300 L/hm²),and 3 replicates for each treatment were set to analyze the effects of microbial agent on soil nutrients and cotton yield and quality. 【Results】 The content of available silicon,available phosphorus and available potassium in 0-20 cm and 20-40 cm soil layers increased with the increase of microbial agents,and the T₃ treatment effect was the most significant. At 40-60 cm soil layer,the soil nutrients of each treatment were not significantly different from CK. The single bell weight of the T₃ treatment increased by 8.7% compared with CK and the yield increased by 14.6%. The pile length,Fracture ratio strength and Spinning uniformity index of T₃ treatment were significantly increased compared with the control. The Micronaire was reduced and the quality was increased from C₂ to B₂. 【Conclusion】 On the fifth day of microbial agent application into the soil,the best activation effect on soil nutrients is achieved,which can increase the effective content of silicon,phosphorus and quick potassium in the soil,thus leading to the high yield of cotton and improving the quality,too.

Key words: microbial agents; nutrient activation; cotton; quality; yield

摘要：

【目的】研究不同微生物菌剂施用量对土壤养分活化、棉花产量及品质的影响,为滴灌棉田合理施用微生物菌剂提供参考。【方法】采用室内培养与田间小区试验相结合方法,室内培养将微生物菌剂施入含有土壤的培养盒中,分别培养0、5、10、15、20 d,分析微生物菌剂对土壤养分活化效率最大的时间;田间小区试验设置4个处理:CK(不施微生物菌剂)、T₁(施微生物菌剂75 L/ hm²)、T₂(施微生物菌剂150 L/hm²)、T₃(施微生物菌剂300 L/ hm²),每个处理设3个重复,分析微生物菌剂对土壤养分和棉花产量及品质的影响。【结果】0~20 cm、20~40 cm土层的有效硅、有效磷、速效钾含量随着施用微生物菌剂的增加而增加,T₃处理效果最显著。T₃处理的单铃重较CK增加8.7%,产量增加14.6%。T₃处理的绒长、断裂比强度、纺纱均匀性指数较CK显著增加;马克隆值由C₂级提高至B₂级。【结论】微生物菌剂施入土壤的第5 d对土壤养分的活化效果最佳,且能够增加土壤有效硅、有效磷、速效钾的有效含量,提高棉花产量并改善品质。

关键词: 微生物菌剂, 养分活化, 棉花, 品质, 产量

CLC Number:

S562

LUO Linyi, CHEN Ruijie, RUAN Xiangyang, REN Xiaohui, QU Ao, SU Haiting, YE Jun. Effects of microbial agents on soil nutrients,cotton yield and quality in drip irrigation cotton fields[J]. Xinjiang Agricultural Sciences, 2024, 61(1): 26-33.

罗林毅, 陈瑞杰, 阮向阳, 任晓辉, 曲奥, 苏海婷, 冶军. 微生物菌剂对滴灌棉田土壤养分和棉花产量及品质的影响[J]. 新疆农业科学, 2024, 61(1): 26-33.

Figures/Tables 6

References 37

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处理 Treat- ment	株数 Number of plants (株/hm²)	单株铃数 Boll number per plant (个)	单铃重 Single bell weight (g)	籽棉产量 Seed cotton yield (kg/hm²)
CK	214 825	4.20^b	4.84^b	4 364^c
T₁	215 566	4.44^ab	5.04^ab	4 823^b
T₂	218 529	4.57^ab	5.02^ab	5 008^ab
T₃	213 388	4.45^ab	5.30^a	5 211^a

处理 Treat- ment	株数 Number of plants (株/hm²)	单株铃数 Boll number per plant (个)	单铃重 Single bell weight (g)	籽棉产量 Seed cotton yield (kg/hm²)
CK	214 825	4.20^b	4.84^b	4 364^c
T₁	215 566	4.44^ab	5.04^ab	4 823^b
T₂	218 529	4.57^ab	5.02^ab	5 008^ab
T₃	213 388	4.45^ab	5.30^a	5 211^a

结铃部位 Belling position	处理 Treatment	绒长 Fiber length (mm)	断裂比强度 Strength (cN/tex)	马克隆值 Micronaire	整齐度指数 Maturity Index (%)	伸长率 Elongation (%)	反射率 Reflectance (%)	黄度 Yellowness	纺纱均匀性指数 Spinning Consistency Index
上 Upper	CK	26.20^a	24.02^a	5.03^a	79.97^a	5.22^b	85.20^a	8.30^c	96.92^b
	T₁	26.33^a	24.30^a	5.00^a	79.70^a	5.33^ab	84.70^a	8.40^bc	97.67^b
	T₂	26.10^a	23.60^a	4.77^b	79.00^a	5.33^ab	85.17^a	8.80^ab	97.50^b
	T₃	26.57^a	24.83^a	4.67^b	80.33^a	5.40^a	84.60^a	8.95^a	105.67^a
中 Centre	CK	28.90^a	28.83^a	4.93^ab	82.53^a	5.95^b	84.70^a	8.53^a	128.50^a
	T₁	28.10^b	28.03^a	5.00^a	81.77^ab	5.80^b	84.67^a	8.77^a	124.00^b
	T₂	27.27^c	26.60^b	4.93^ab	80.73^c	5.77^b	84.70^a	8.53^a	123.33^b
	T₃	28.83^a	28.37^a	4.67^b	81.60^b	6.17^a	84.03^a	8.55^a	126.00^ab
下 Below	CK	28.98^c	29.53^ab	4.97^a	83.00^a	6.57^a	83.17^a	8.17^b	131.50^b
	T₁	29.53^b	30.13^a	4.67^b	82.70^a	6.57^a	84.23^a	8.53^a	137.00^ab
	T₂	29.15^c	28.37^b	4.67^b	81.80^a	6.60^a	83.77^a	8.57^a	132.83^b
	T₃	30.13^a	29.90^a	4.27^c	83.27^a	6.80^a	85.20^a	8.43^a	145.33^a

结铃部位 Belling position	处理 Treatment	绒长 Fiber length (mm)	断裂比强度 Strength (cN/tex)	马克隆值 Micronaire	整齐度指数 Maturity Index (%)	伸长率 Elongation (%)	反射率 Reflectance (%)	黄度 Yellowness	纺纱均匀性指数 Spinning Consistency Index
上 Upper	CK	26.20^a	24.02^a	5.03^a	79.97^a	5.22^b	85.20^a	8.30^c	96.92^b
	T₁	26.33^a	24.30^a	5.00^a	79.70^a	5.33^ab	84.70^a	8.40^bc	97.67^b
	T₂	26.10^a	23.60^a	4.77^b	79.00^a	5.33^ab	85.17^a	8.80^ab	97.50^b
	T₃	26.57^a	24.83^a	4.67^b	80.33^a	5.40^a	84.60^a	8.95^a	105.67^a
中 Centre	CK	28.90^a	28.83^a	4.93^ab	82.53^a	5.95^b	84.70^a	8.53^a	128.50^a
	T₁	28.10^b	28.03^a	5.00^a	81.77^ab	5.80^b	84.67^a	8.77^a	124.00^b
	T₂	27.27^c	26.60^b	4.93^ab	80.73^c	5.77^b	84.70^a	8.53^a	123.33^b
	T₃	28.83^a	28.37^a	4.67^b	81.60^b	6.17^a	84.03^a	8.55^a	126.00^ab
下 Below	CK	28.98^c	29.53^ab	4.97^a	83.00^a	6.57^a	83.17^a	8.17^b	131.50^b
	T₁	29.53^b	30.13^a	4.67^b	82.70^a	6.57^a	84.23^a	8.53^a	137.00^ab
	T₂	29.15^c	28.37^b	4.67^b	81.80^a	6.60^a	83.77^a	8.57^a	132.83^b
	T₃	30.13^a	29.90^a	4.27^c	83.27^a	6.80^a	85.20^a	8.43^a	145.33^a