安徽农业科学2025，Vol.53Issue(5)：128-132,5.DOI:10.3969/j.issn.0517-6611.2025.05.026
减氮配施有机肥对小麦衰老进程及产量的影响
Effects of Nitrogen Reduction Combined with Organic Fertilizer on Aging Process and Yield of Wheat
汪康康 1张鹏 1王静静 1王素霞 1杜洪艳1
作者信息
- 1. 江苏省农垦农业发展股份有限公司现代农业研究院,江苏 南京 210031
- 折叠
摘要
Abstract
[Objective]To explore the effects of nitrogen reduction combined with organic fertilizer on the senescence process and yield of wheat,as well as the appropriate proportion of nitrogen reduction combined with organic fertilizer.[Method]Combining principal component analysis(PCA)and membership function method,a new vegetation growth index was constructed to quantitatively express the growth status of wheat.The effects of nitrogen reduction combined with organic fertilizer on aging process and yield of wheat were evaluated by analyzing the variation of agronomic and yield parameters under different treatments.[Result]The results showed that nitrogen fertilizer with a 15%-20%reduction in base fertilizer combined with organic fertilizer of 5 250-6 000 kg/hm2 as base fertilizer can achieve better agronomic performance than the control,close to the effective number of ears per mu of the control,and have a certain positive effect on the thousand grain weight of wheat,thus showing a certain advantage in yield.At the same time,it can also delay the aging process in the later stage of wheat growth.[Conclusion]By studying the effects of nitrogen reduction combined with organic fertilizer on the senescence process and yield of wheat,the best proportion of nitrogen reduction combined with organic fertilizer was determined,which can provide certain technical support for reducing the amount of chemical fertilizer and improving the physical and chemical characteristics of cultivated soil to cultivate fertility.关键词
小麦/有机肥/主成分分析/隶属度函数/植被生长指数/产量模型Key words
Wheat/Organic fertilizer/Principal component analysis/Membership function/Vegetation growth index/Yield model分类
农业科技引用本文复制引用
汪康康,张鹏,王静静,王素霞,杜洪艳..减氮配施有机肥对小麦衰老进程及产量的影响[J].安徽农业科学,2025,53(5):128-132,5.
