摘要
本研究在大田条件下研究普通掺混肥(CK)、等养分含量玉米专用控释肥(CRF)和减量20%玉米专用控释肥(CRF80%)对夏玉米农艺性状、产量、经济效益及土壤性状的影响,以期为控释肥在玉米上大面积推广提供参考依据。结果表明,等养分含量施用控释肥(CRF)能显著提高玉米的株高、穗长、穗粗、穗行数、行粒数和百粒重等农艺性状指标,显著提高玉米产量,增产15.53%,且产量与穗行数、行粒数、百粒重呈显著正相关,与秃尖长呈显著负相关,农民收益增加2371.43元/hm^2,显著提高氮肥偏生产力及土壤速效氮、速效钾含量。控释肥在玉米上应用效果显著,值得在玉米生产中大力推广应用。
The field experiment was conducted to investigate the effects of common mixed fertilizer(CK)and controlled-release fertilizers with equal nutrient content(CRF)and 20%reduction(CRF80%)on agronomic traits,yield,economic benefits and soil properties of spring maize,so as to provide reference basis for large-scale promotion of controlled-release fertilizer on maize.The results indicated that the application of CRF with equal nutrient content could significantly improve the agronomic traits of maize,such as plant height,ear length,ear diameter,ear row number,grain number per row and 100 grain weight,and significantly increased maize yield by 15.53%.The yield was positively correlated with ear row number,row grain number and hundred grain weight,and negatively correlated with the length of bare tips.Farmers’income increased by 2371.43 yuan/ha.And the partial productivity of nitrogen fertilizer and the content of available nitrogen and potassium were significantly increased.Moreover,the application of CRF on corn has remarkable effect and it is worth popularizing and applying vigorously in corn production.
作者
揣峻峰
肖艳
杜迎辉
王磊
张东旭
刘洪钧
徐志文
CHUAI Junfeng;XIAO Yan;DU Yinghui;WANG Lei;ZHANG Dongxu;LIU Hongjun;XU Zhiwen(Engineering Technology Research Center of Agricultural Biotechnology in Hebei Province,Qinhuangdao 066004;Leading Bio-agricultural Co.,Ltd.,Qinhuangdao 066004;Qinhuangdao Leading Comdee Agricultural Technology Co.,Ltd.,Qinhuangdao 066004,China)
出处
《东北农业科学》
北大核心
2020年第3期41-44,共4页
Journal of Northeast Agricultural Sciences
基金
国家重点研发计划重点专项(2017YFD0200705)。
关键词
控释肥
夏玉米
产量
氮肥偏生产力
土壤性状
Controlled-release fertilizer
Summer maize
Yield
Nitrogen partial factor productivity
Soil properties