新疆农业科学2018，Vol.55Issue(10)：1794-1802,9.DOI:10.6048/j.issn.1001-4330.2018.10.004
不同用量浓缩沼液对棉花生长发育及光合特性的影响
Effects of Different Amounts of Concentrated Biogas Slurry on Growth, Development and Photosynthetic Characteristics of Cotton
摘要
Abstract
[Objective] Concentrated biogas slurry is a kind of fertilizer resource produced by the processing of biogas waste and an important way for crops to realize environmentally friendly and resource-efficient production, so it is of positive significance to promote our country's agricultural ecological transformation. [Method]To explore the concentrated biogas slurry application technology of high yield in cotton, field experiments were conducted to study the effects of different concentrations of biogas slurry liquid on cotton growth dynamics, photosynthetic characteristics and yield.[Result]The results showed that the application of concentrated biogas slurry had a significant effect on cotton growth, development and yield formation, and the greater the amount of concentrated biogas slurry liquid was, the stronger the promoting effect was. The plant height, stem diameter, dry matter accumulation per plant, leaf area index were the best by applying 175 L/hm2 concentration of biogas slurry, which were higher 8.83％, 12％, 24.78％ and 16.38 ％ than those of the CK treatment in the same growth period, respectively. Application of concentrated biogas slurry could improve the photosynthetic capacity of cotton, and all photosynthetic characteristic parameters of cotton were optimal by applying 175 L/hm2 concentrated biogas slurry, the net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (Gs) were 29.35％, 20.60％ and 17.99％ higher than those of CK at full-bloom stage, respectively, while intercellular CO2 concentration (Ci) was 19.66％ lower than that of the CK at the same period. Using concentrated biogas slurry could increase the number and weight of boll of cotton, thus increasing the yield of cotton. The highest grain yield of 175 L/hm2 concentrated biogas slurry treatment was 7 445.68 kg/hm2, 17.77％ higher than that of the CK. [Conclusion]Within the scope of this study, the higher concentration application of concentrated biogas slurry was more beneficial to the cotton growth and increase the yield.关键词
浓缩沼液/棉花/生长发育/光合特性/生态农业Key words
concentrated biogas slurry/cotton/growth and development/photosynthetic characteristics/ecological agriculture分类
农业科技引用本文复制引用
徐瑞强,董合林,徐建辉,唐江华,徐文修,卡地力亚·阿不都克力木,李大平,董泰丽,付传翠..不同用量浓缩沼液对棉花生长发育及光合特性的影响[J].新疆农业科学,2018,55(10):1794-1802,9.基金项目
新疆维吾尔自治区科技援疆项目 (2016E2019) （2016E2019）
