当前位置: 首页 > 文章 > 不同施肥模式对玉米产量及土壤硝态氮的影响 河南农业科学 2012,41 (2) 41-44
Position: Home > Articles > Effect of Different Fertilization Modes on Maize Yield and Soil Nitrate-nitrogen Journal of Henan Agricultural Sciences 2012,41 (2) 41-44

不同施肥模式对玉米产量及土壤硝态氮的影响

作  者:
张鑫;安景文;邹晓锦;隋世江
单  位:
辽宁省农业科学院环境资源与农村能源研究所
关键词:
玉米;氮肥;土壤硝态氮;籽粒产量;缓控释肥
摘  要:
研究了大田条件下习惯施肥、施缓控释肥、优化施肥和秸秆还田4种不同施肥模式对玉米产量及土壤硝态氮的影响。结果表明,一次性施入缓控释肥的玉米产量比习惯施肥增产2.67%。氮肥用量与收获后土壤剖面硝态氮累积量呈正相关,施氮量越多,土壤硝态氮在100cm土层范围内的累积量也越大。0~100cm土壤剖面硝态氮的累积量,不同处理表现为:缓控释肥<优化施肥<秸秆还田<习惯施肥;与习惯施肥相比,缓控释肥、优化施肥、秸秆还田处理0~100cm土层中硝态氮积累量分别下降了48.0%、46.5%、40.7%,从而降低了农田地下水硝态氮污染的风险。综合玉米产量、硝态氮积累量,认为在施氮192kg/hm2条件下,施用缓释肥料既可保证产量又能降低浅层地下水硝态氮污染的风险。
译  名:
Effect of Different Fertilization Modes on Maize Yield and Soil Nitrate-nitrogen
作  者:
ZHANG Xin,AN Jing-wen,ZOU Xiao-jin,SUI Shi-jiang(Institute of Environmental Resources and Rural Energy,Liaoning Academy of Agricultural Sciences, Shenyang 110161,China)
关键词:
corn;nitrogen fertilizer;soil nitrate-N;grain yield;slow release fertilizer
摘  要:
The effects of different fertilization levels and modes on maize yield and soil nitrate-N content were studied under field conditions.The results showed that compared to the traditional mode,application of slow release fertilizer increased maize yield by 2.24%.N rate and nitrate-N accumulation in soil profile after harvest was positively correlated,the greater the amount of nitrogen,the greater the nitrate-N accumulation within 100 cm soil.The soil nitrate-N accumulation within 100 cm soil under different treatments was showed as application of slow release fertilizer

相似文章

计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊