江西农业学报2026，Vol.38Issue(5)：17-23,7.DOI:10.19386/j.cnki.jxnyxb.2026.05.003
有机肥部分替代化肥配施硝化抑制剂对马铃薯产量和肥料利用率的影响
Effects of Partial Substitution of Chemical Fertilizer with Organic Fertilizer Combined with Nitrification Inhibitor on Potato Yield and Fertilizer Use Efficiency
摘要
Abstract
Under field experimental conditions,six treatments were set up:no fertilization(T0),conventional fertilization(T1),recommended fertilization(T2),T2+20%chemical fertilizer substituted by organic fertilizer(T3),T3+nitrification inhibitor DCD(T4),and T4+soil conditioner(T5).The effects of different fertilization strategies on potato yield,nutrient utilization,and soil quality were studied.The results showed that the application of nitrification inhibitor and conditioner increased the content of soil available nutrients.Compared with T0 treatment,the contents of alkali-hydrolyzable nitrogen,ammonium nitrogen and available potassium in T5 treatment increased by 43.46%,519.44%and 100.77%,while the content of nitrate nitrogen decreased by 79.02%.The yield of T5 treatment was significantly 16.47%higher than that of T1 treatment,and 10.81%higher than that of T3 treatment with the same nutrient input.The utilization rates of nitrogen,phosphorus and potassium fertilizers in T5 treatment reached 34.11%,11.47%and 57.39%,respectively,which were 9.55,8.54 and 12.35 percentage points higher than those in T1 treatment.The increase of potato yields mainly depended on the increase of soil ammonium nitrogen(r=0.52*)and available potassium(r=0.67*)contents.T4 treatment had the best economy with a net income of 50483 yuan/hm2.Although T5 treatment achieved the highest output value and yield,its net income was 46886 yuan/hm²,lower than that of T4 treatment,due to the cost of soil conditioner and application fee.The substitution of organic fertilizer combined with nitrification inhibitor improves the coupling degree between soil available nitrogen forms and potato nitrogen form preference characteristics,promotes nutrient ab-sorption,and improves fertilizer utilization efficiency.关键词
马铃薯/氮磷化肥减量/有机肥替代/硝化抑制剂/土壤调理剂/养分利用效率Key words
Potato/Reduction of nitrogen and phosphorus chemical fertilizers/Organic fertilizer substitution/Nitrification inhibitor/Soil conditioner/Nutrient use efficiency分类
农业科技引用本文复制引用
肖洋,蔡柳圆,郭宝玲,郑祥洲,张玉树,王煌平..有机肥部分替代化肥配施硝化抑制剂对马铃薯产量和肥料利用率的影响[J].江西农业学报,2026,38(5):17-23,7.基金项目
中央引导地方科技发展专项(2023L3022) （2023L3022）
福建省属公益类科研院所基本科研专项(2023R1073) （2023R1073）
福建省农科院科研项目(JCQN202403) （JCQN202403）
福建省自然科学基金项目(2022J01462、2023J01194) （2022J01462、2023J01194）
自然资源部东南生态脆弱区监测修复工程技术创新中心自主研究课题(KY-030000-04-2023-022). （KY-030000-04-2023-022）
