摘要
为了调控肥料养分在土壤中的转化、减少养分损失,本研究在吉林省梨树县进行了两年的玉米田间定位试验,系统研究了添加腐殖酸、海藻酸、氨基酸和调理剂的增效氮肥的施用效果,从中筛选出最优的施用类型,以期为玉米生产的减肥增效提供可行途径.综合两年定位试验结果显示,增效氮肥显著提高了玉米产量和肥料利用率.与追施尿素相比,追施增效氮肥Ⅰ、Ⅱ、Ⅲ、Ⅳ型处理玉米产量分别增加了 7.17％、5.43％、5.52％和3.41％;氮肥利用率分别提高了 12.72％、2.68％、2.71％和5.42％,农学效率提高了 5.24、4.29、4.41、1.82 kg/kg.其中追施增效氮肥Ⅰ型的玉米增产率、氮肥利用率和农学效率提高幅度最大,效果最佳,是最适合该地区玉米施用的氮肥类型.
Abstract
In order to regulate the conversion of fertilizer nutrients in the soil and reduce nutrient losses,this study conducted a two-year corn field location trial in Lishu County,Jilin Province,to systematically study the application effects of efficiency N fertilizers with humic acid,alginate,amino acids and conditioners,and to screen out the opti-mal application formulations,with a view to providing a feasible way to reduce weight and increase efficiency in corn production.The results of the comprehensive two-year positioning test showed that the efficiency nitrogen fertilizer significantly improved the corn yield and fertilizer utilization.Compared with common urea treatment,maize yield increased by 7.17％,5.43％,5.52％and 3.41％with N fertilizer synergist Ⅰ,Ⅱ,Ⅲ and Ⅳ,respectively.N fertilizer utilization increased by 12.72％,2.68％,2.71％and 5.42％,respectively,and agronomical efficiency increased by 5.24,4.29,4.41,1.82 kg/kg,respectively.The maize yield increase,nitrogen fertilizer utilization rate and agronomic efficiency increased the most and had the best effect with the retroactive application of efficiency-enhancing nitro-gen fertilizer type Ⅰ,which is the most suitable type of nitrogen fertilizer for maize cultivation in this region.
基金项目
国家重点研发计划项目(2022YFD1500105)
国家重点研发计划项目(2022YFD170060106)
辽宁省优秀青年科学计划项目(2022-YQ-05)
沈阳市中青年科技创新人才支持计划项目(RC220330)
维普
万方数据