控释包膜尿素肥料对黑山地区玉米产量的影响

Effect of Controlled-Release Coated Urea Fertilizer on Maize Yield in Heishan area

为确定适宜当地玉米生长环境友好型肥料施用方法,在保证稳产高产前提下减施普通化肥,以期为该地区农业面源污染防控减肥增效提供理论依据,以树脂包膜型缓释尿素为试验材料,金禾666为试验对象,进行了控释包膜尿素肥料对锦州市黑山地区玉米产量的影响试验。设置5个不同处理,测定指标包括单穗粒数、千粒重、籽粒湿重、籽粒干重。试验结果表明,正常量施入控释尿素肥料在穗粒数以及千粒重表现上显著高于普通尿素。在相同氮肥用量和施入方式下,控释包膜尿素肥料较普通尿素有增产优势,显著提高了黑山地区玉米产量。因此在锦州黑山地区建议用控释包膜尿素肥料施氮肥的方式提高玉米产量并减少农业面源污染的发生。

In order to determine the application method of environment-friendly fertilizer suitable for maize growth in this area,reducing the application of ordinary chemical fertilizer on the premise of ensuring stable and high yield,in order to provide a theoretical basis for the prevention and control of agricultural non-point source pollution in this area to lose weight and increase efficiency.We take resin coated slow-release urea as the experimental material and Jinhe 666 as the experimental object,the effect of controlled-release coated urea fertilizer on maize yield in Heishan area of Jinzhou City is tested.We set 5 different treatments and serval measurement indexes,including grain quantity per panicle,thousand grain weight,grain wet weight and grain dry weight.The results show that the normal application of controlled-release urea fertilizer is significantly higher than normal urea in terms of the number of grains per panicle and thousand grain weigh.Under the equivalent nitrogen dosage and application mode,controlled-release coated urea fertilizer had the advantage of increasing yield in comparison with ordinary urea and significantly increased the corn yield in Heishan area.Therefore,it is proposed that use controlled-release coated urea fertilizer to increase corn yield and reduce agricultural non-point source pollution in Heishan area.