中国农学通报2025，Vol.41Issue(2)：17-22,6.
四川盐源玉米种植肥料利用率与经济效益分析
Analysis of Fertilizer Use Efficiency and Economic Benefit of Planting Maize in Yanyuan of Sichuan
摘要
Abstract
To analyze the utilization rate of nitrogen,phosphorus and potassium fertilizer in corn planting in Yanyuan,promote scientific fertilization to increase efficiency,and promote the protection and quality improvement of cultivated land,we set up treatments of no fertilizer,no nitrogen,no phosphorus,no potassium and NPK full fertilizer to carry out the utilization rate analysis of NPK fertilizer for corn.The results indicated that stem diameter,ear height,number of grains per ear and 1000-grain weight of NPK fertilizer treatment were higher than those of other treatments,except that plant height was lower than that of no potassium;the grain yield and stem and leaf yield were also the highest,which were 12.07 t/hm2 and 13.55 t/hm2,respectively.The order from high to low was full fertilizer zone(T5)＞potassium-free zone(T4)＞phosphorus free zone(T3)＞nitrogen free zone(T2)＞fertilizer free zone(T1).The yield to investment ratio of NPK fertilizer area was the lowest(4.73),but the economic benefit was the highest.The utilization rates of N,P and K in the experimental field were from high to low as K＞N＞P,and the utilization rates were 56.61％,43.14％and 9.55％,respectively.Therefore,the composite fertilizer containing nitrogen,phosphorus and potassium should be selected for corn production in Yanyuan,and the content of potassium and nitrogen should be higher than that of phosphorus.At the same time,we should increase the application of organic fertilizer and plant green fertilizer to improve the ecological environment and improve the quality of crops.关键词
玉米/肥料/利用率/盐源/氮肥/磷肥/钾肥/经济效益Key words
maize/fertilizer/utilization rate/Yanyuan/nitrate fertilizer/phosphate fertilizer/potash fertilizer/economic benefits分类
农业科技引用本文复制引用
游宇,林显凤,江云,张良,张云梅,唐冬梅,余洪洁,熊忠伟..四川盐源玉米种植肥料利用率与经济效益分析[J].中国农学通报,2025,41(2):17-22,6.基金项目
国家现代农业产业技术体系-四川区域特色经济作物创新团队(SCCXTD-2024-12) （SCCXTD-2024-12）
"2022年四川化肥减量增效项目"(川农函[2022]387号) （川农函[2022]387号）
四川省农业农村系统帮扶凉山专班(川农函[2022]98号). （川农函[2022]98号）
