农学学报2024，Vol.14Issue(3)：13-20,8.
旱作区化肥减量配施有机肥对粮饲兼用玉米生长及产量的影响
Effect of Reducing Chemical Fertilizer and Applying Organic Fertilizer on the Growth and Yield of Maize in Dry Farming Area
摘要
Abstract
The purpose is to study the effects of organic fertilizer replacing partial chemical fertilizer on maize growth and yield,and to assess the feasibility of achieving high yield by reducing chemical fertilizer.A two-year(2019 to 2020)field experiment was carried out using maize'Jinkai 5'with six treatments including no fertilizer(CK),commercial organic fertilizer(T1),traditional chemical fertilizer(T2),traditional chemical fertilizer plus commercial organic fertilizer(T3),traditional chemical fertilizer reduction 15%plus commercial organic fertilizer(T4)and traditional chemical fertilizer reduction 30%plus commercial organic fertilizer(T5)by a randomized blocks design.The results showed that compared with CK,all fertilization treatments in 2 years could promote the growth of maize,significantly increase the dry matter accumulation of vegetative organs,and improve the agronomic efficiency and partial fertilizer productivity of maize yield.The order of influence on growth and yield was T3＞T4＞T5＞T2＞T1＞CK.Compared with T2,the plant height,spike height,leaf area index,accumulation of dry matter at different growth stages,yield,water use efficiency and agricultural efficiency of nitrogen,phosphorus,and potassium fertilizers of each organic fertilizer substitution treatment(T4 and T5)increased by 0.24%-3.12%,0.28%-3.27%,2.36%-8.91%,4.14%-24.40%,4.38%-11.20%,9.06%-13.20%,and 0.44%-24.80%,respectively.In conclusion,replacing partial chemical fertilizer with organic fertilizer(T3,T4,and T5)could significantly improve maize growth and increase yield.The 30%reduction in fertilizer application(T5)will not adversely affect the yield of maize,and replacing partial chemical fertilizer with organic fertilizer(T5)was a fertilizer saving and high efficient fertilization method for increasing water use efficiency,agronomic efficiency of fertilizer and nitrogen partial fertilizer productivity in the dry farming area.关键词
旱作区/粮饲兼用玉米/化肥/有机肥/产量/水分利用效率Key words
dry farming area/dual-purpose maize/chemical fertilizer/organic fertilizer/yield/water use efficiency分类
农业科技引用本文复制引用
边金霞,王平..旱作区化肥减量配施有机肥对粮饲兼用玉米生长及产量的影响[J].农学学报,2024,14(3):13-20,8.基金项目
兰州市科技局计划项目"寒旱区农作物高效栽培及农业节水技术研究与开发"(2020-ZD-142) （2020-ZD-142）
兰州市重点人才项目"寒旱区马铃薯新品种引进筛选及提质增效技术研究与应用"(2021-RC-87) （2021-RC-87）
兰州市人才项目"饲用甜菜功能型全价饲料研发与中试示范"(2021-RC-77). （2021-RC-77）
