核农学报2017，Vol.31Issue(4)：794-802,9.DOI:10.11869/j.issn.100-8551.2017.04.0794
施用腐植酸对夏玉米产量、氮素吸收及氮肥利用率的影响
Effects of Application Humic Acid on Yield, Nitrogen Absorption and Nitrogen Use Efficiency of Summer Maize
摘要
Abstract
In order to study the humic acid and inorganic NPK fertilizer on summer maize yield,nitrogen absorption and the influence of nitrogen use efficiency.In the brown soil region of Henan the winter wheat and summer maize rotation system,beginning in 2014 in Henan Province Wolong district Yingzhuang town to carry out field location test,the total 5 treatments,set single PK fertilizer,conventional fertilization,Conventional fertilization + 3 000 kg· hm-2humic acid,Conventional fertilization and nitrogen reduction 15％ + 3 000 kg· hm-2humic acid,conventional fertilization and nitrogen reduction 30％ + 3 000 kg· hm-2humic acid,and analyzed the characteristics of yield and nitrogen fertilizer utilization of summer maize under different fertilization levels.The Results show that application of humic acid could improve the agronomic characters of summer maize,increase the yield of summer maize,and promote the accumulation of nitrogen and the utilization rate of nitrogen fertilizer.Among them,the conventional fertilization reducing nitrogen 15％ + humic acid treatment effect is the best,compared with conventional fertilization,the yield increased by 8.68％to 12.96％,grain,grain nitrogen accumulation amount,nitrogen content of above ground total nitrogen accumulation amount increased by 2.83％ to 3.92％,11.75％ to 19.74％,8.83％ to 19.41％,respectively,nitrogen use efficiency increased by 52.00％ to 116.55％.Therefore,the conventional fertilization and nitrogen reducing 15％ + humic acid is the best Fertilization mode in the study area,to achieve the high production and efficiency of agricultural production,resource saving and environment protection is of great importance,being worthy of recommended Fertilizer application mode.关键词
腐植酸/夏玉米/产量/氮肥/氮肥利用率Key words
humic acid/summer maize/yield/nitrogenous fertilizer/nitrogenous fertilizer efficiency引用本文复制引用
袁天佑,王俊忠,冀建华,牛俊义..施用腐植酸对夏玉米产量、氮素吸收及氮肥利用率的影响[J].核农学报,2017,31(4):794-802,9.基金项目
科技部粮食丰产科技工程项目(2012BAD04B07),河南省政府与中国科学院合作STS项目(KFJ-SW-STS-142) （2012BAD04B07）
