肥料增效剂NAM对小麦产量及氮肥农学利用率的影响  

Effects of Fertilizer Synergist NAM on Wheat Yield and Agronomic Utilization Efficiency of Nitrogen Fertilizer

作　　者：郜峰 董军红[1] 周其军[1] 杨春玲[1] GAO Feng;DONG Jun-hong;ZHOU Qi-jun;YANG Chun-ling(Anyang Academy of Agricultural Sciences,Anyang 455000,China)

机构地区：[1]安阳市农业科学院,河南安阳455000

出　　处：《河北农业科学》2023年第1期76-80,共5页Journal of Hebei Agricultural Sciences

基　　金：国家现代农业产业技术体系资助项目(CARS-03)。

摘　　要：研究肥料增效剂NAM对小麦产量及氮肥农学利用率的影响,可为小麦高产高效栽培技术的制订以及氮肥的高效利用提供参考。试验设等氮量施肥条件下NAM添加比例(占氮肥总用量的比例) 0 (不添加,作为添加NAM处理的对照,CK_(1))、4‰、6‰和8‰,以及不施氮肥(CK_(2),仅用于氮肥农学利用率的计算)计5个处理,通过大田小区试验,研究了不同添加比例的NAM处理对小麦群体数量、株高、穗长、产量构成因素、产量和氮肥农学利用率的影响。结果表明:添加NAM能够提高小麦产量和氮肥农学利用率,但不同添加比例的影响效果不同,其中,添加总施氮量6‰的NAM效果最好,小麦产量、氮肥偏生产力和氮肥农学利用率均达到最高,分别为6 317.3 kg/hm^(2)、42.1 kg/kg和7.9 kg/kg,依次较不添加NAM处理提高10.9%、10.8%和107.9%,且差异均达到了极显著水平。在安阳地区小麦生产时,按照总施氮量6‰的比例添加肥料增效剂NAM,可同时实现小麦高产和氮肥的高效利用。The study of the effects of fertilizer synergist NAM on wheat yield and nitrogen fertilizer utilization efficiency can provide reference for the formulation of high yield and high efficiency cultivation technology of wheat and the efficient use of nitrogen fertilizer.The five treatments were set up including NAM addition ratio(proportion of total nitrogen fertilizer use)0(no addition,as the control of adding NAM treatment,CK_(1)),4%,6% and 8%,and no nitrogen fertilizer application(CK_(2),only used for the calculation of nitrogen fertilizer agronomic utilization rate)under the condition of equal nitrogen fertilizer application.Through field and small area experiments,the effects of different NAM addition ratios on wheat population number,plant height,ear length,yield components,yield and nitrogen fertilizer agronomic utilization rate were studied.The results showed that adding NAM could improve the wheat yield and the agronomic utilization efficiency of nitrogen fer tilizer,but the effects of different adding ratios were different.Among them,the effect of adding 6% of total nitrogen fertilizer was the best,and the wheat yield,nitrogen fertilizer partial productivity and agronomic utilization efficiency of nitrogen fertilizer reached the highest,which were 6317.3 kg/hm2,42.1 kg/kg and 7.9 kg/kg,respectively,which were 10.9%,10.8%and 107.9%higher than those without adding NAM,and the difference reached a very significant level.During wheat production in Anyang area,adding fertilizer synergist NAM according to the proportion of 6% of total nitrogen application can achieve high yield of wheat and efficient use of nitrogen fertilizer at the same time.

关 键 词：NAM 小麦 产量 氮肥农学利用率 

分 类 号：S512.11[农业科学—作物学]