Studies on the Effect of Synergistic Nitrogen Fertilizers Application on Maize in Black Soil
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.
万方数据
维普
