脲甲醛复合肥配方施肥对小麦分蘖及产量效益的影响  

Effects of Formulated Fertilization with Urea-formaldehyde Compound Fertilizer on Wheat Yield and Tillering

作　　者：陈开平 罗刚 卢丽娟 徐曙 CHEN Kai-ping;LUO Gang;LU Li-juan;XU Shu(Xinyang Branch of Jiangsu Provincial Reclamation Agricultural Development Co,,Ltd,Sheyang 224314,China)

机构地区：[1]江苏省农垦农业发展股份有限公司新洋分公司,江苏盐城224314

出　　处：《大麦与谷类科学》2021年第2期33-35,共3页Barley and Cereal Sciences

摘　　要：以小麦扬麦25为材料,分析脲甲醛复合肥配方施肥与当地常规配方施肥对小麦分蘖及产量的影响。结果表明:脲甲醛复合肥配方施肥对小麦前期分蘖表现出了促进作用,茎蘖数的增加幅度高于常规配方施肥,且分蘖率的差异更为显著。随着小麦分蘖数开始下降,脲甲醛复合肥配方施肥的成穗率低于常规配方施肥,但差异不显著。从产量构成因素来看,脲甲醛复合肥配方施肥的有效穗数比常规配方施肥高,具差异显著(P<0.05),但在实粒数和千粒质量方面几无差异。综合产量和经济效益来看,脲甲醛复合肥配方施肥通过增穗数、增粒质量达到增产效果,增幅2.93%,增加净效益50.55元/667 m^(2)。The current study compared the effects of formulated fertilization with a urea-formaldehyde compound fertilizer and local conventional formulated fertilization on wheat tillering and yield.Using the wheat variety Yangmai 25 as the experimental material,a field trial was conducted in the wheat growing season of 2019—2020 in Sheyang County,Jiangsu province.The results showed that the formulated fertilization with a urea-formaldehyde compound fertilizer led to significantly higher tiller number than local conventional formulated fertilization,and their difference in tillering rate was even more significant.As tillering began to slow down,the spike formation rate of the treatment with the urea-formaldehyde compound fertilizer was lower than that of the treatment with conventional fertilizers.With respect to its effect on yield components,the treatment with the urea-formaldehyde compound fertilizer had significantly(P<0.05)higher effective panicle number than conventional formulated fertilization,but the two treatments had no significant differences in the number of filled grains and 1000 grain weight.In terms of its effect on yield and economic benefit,formulated fertilization strategy with the urea-formaldehyde compound fertilizer increased the yield of Yangmai 25 by 2.93% and the net benefit by 50.55 yuan/667 m^(2) through increasing panicle number and grain weight,and achieved the objective of reducing application rates of fertilizers as well.

关 键 词：小麦 脲甲醛复合肥 分蘖 产量 

分 类 号：S146[农业科学—肥料学]