Effects of Urea Ammonium Chloride of Different Fertilization Patterns on Maize Yield and Yield Components

脲铵氮肥施肥方式及用量对玉米产量及产量构成因素的影响（英文）

[Objective] To understand the application effects of urea ammonium chloride fertilizer on maize production. [Methods] A field plot experiment was conducted to study the effects of urea ammonium chloride of different fertilization patterns on summer maize yield and yield components. [Results] Urea ammonium chloride had a long fertilizer effect and the same yield-increasing effect with urea, which could im- prove the agronomic traits and economic traits of maize apparently and the applica- tion of urea ammonium chloride with nutrient reduction of 40% （namely just use urea ammonium chloride equaled 60% pure nitrogen）, had the same yield-increasing effect with urea of traditional fertilization patterns, and input-output ratio was high and the economic benefit was remarkable. [Conclusion] To provide scientific theoretical direc- tion for large area popularization and application of urea ammonium chloride.

[目的]为了解脲铵氮肥在玉米生产上的应用效果。[方法]以夏玉米为试验材料,通过田间小区试验,研究了脲铵氮肥对玉米产量及产量构成因素的影响。[结果]脲铵氮肥肥效长,具有和尿素一样的增产效果,能明显改善玉米农艺性状和经济性状,增加产量,并且,脲铵氮肥养分减量40%施用(即只需使用纯氮60%的等量脲铵氮肥),就与尿素常规传统施肥方式取得相同的增产效果,投产比高经济效益显著。[结论]为脲铵氮肥大面积推广应用提供科学的理论指导。