摘要
为探究水肥一体化种植模式下小麦的最佳追肥次数,在施肥量和施肥品种相同的情况下,开展了田间小区试验。试验以传统漫灌为对照(CK)处理,水肥一体化种植模式下的追肥次数分别为1、2、3、4、5次(T1~T5),考察了不同施肥处理对小麦群体数量、产量构成因素、经济效益的影响。结果表明:CK处理的小麦冬前群体数量显著高于T1~T5处理的,T1~T5处理的小麦冬后群体数量均显著高于CK处理的;T1~T5处理的小麦产量构成因素均优于CK处理的;各处理的小麦千粒质量差异不显著;T3处理的亩穗数最优,较CK处理的增长9.4%;T5处理的穗粒数表现最好,较CK处理的增长10.6%;T4处理的理论产量最高,较CK处理的增长16.9%;T4处理的净收益最高,较CK处理的增加12.6%。在试验条件下,采用水肥一体化种植模式的小麦追肥4次较为理想。
To determine the optimal top dressing frequency for wheat under integrated water and fertilizer management,a field plot experiment is conducted with consistent fertilizer application rates and types.The treatments include traditional flood irrigation as the control(CK)and five integrated water and fertilizer treatments with top dressing frequencies of 1,2,3,4,and 5 times(T1-T5).The effects on wheat population density,yield components,and economic benefits are evaluated.The results show that the pre-winter population density of wheat under CK is significantly higher than that of T1-T5,while post-winter population density of wheat in T1-T5 is significantly higher than CK.Yield components in T1-T5 outperform CK,though thousand-grain weight shows no significant differences.T3 achieves the highest spike number per mu(9.4%increase over CK),T5 exhibits the maximum grains per spike(10.6%increase over CK),and T4 delivers the highest theoretical yield(16.9%increase over CK)and net profit(12.6%increase over CK).Under experimental conditions,four top dressing applications under integrated water and fertilizer management prove optimal for wheat production.
作者
刘艳梅
张书红
刘振营
王家琪
方甜甜
林莹烁
LIU Yanmei;ZHANG Shuhong;LIU Zhenying;WANG Jiaqi;FANG Tiantian;LIN Yingshuo(Henan Xinlianxin Chemicals Group Co.,Ltd.,Xinxiang,Henan 453731,China)
出处
《肥料与健康》
2025年第2期21-24,共4页
Fertilizer & Health
关键词
追肥次数
水肥一体化
产量
小麦
top dressing frequency
integration of water and fertilizer
yield
wheat
