定远县西卅店镇玉米测土配方施肥肥效研究

Study on Fertilizer Efficiency of Soil Testing and Formulated Fertilization for Maize in Xisadian Town of Dingyuan County

[目的]评价玉米测土配方施肥效益。[方法]设置不施肥、测土配方施肥和常规施肥3个处理,比较肥料投入、作物产量、经济效益、肥料利用率等指标。[结果]较常规施肥处理,测土配方施肥处理可提高单产9.16%,氮、磷、钾肥利用率分别提高了4.41%、4.31%、3.05%,增收939.15元/hm^(2)。[结论]配方施肥和常规施肥处理投入产出比都大于1,但配方施肥处理盈利大于常规施肥处理,表明配方施肥投资更科学。

[Objective]The aim of this study was to evaluate the benefit of soil testing and formulated fertilization for maize.[Method]Three treatments including no fertilization,formula fertilization by soil testing and conventional fertilization were set up to compare fertilizer input,crop yield,economic benefit and fertilizer utilization rate.[Result]Compared with the conventional fertilization treatment,the soil testing and formula fertilization treatment could increase the yield by 9.16%,the utilization rate of nitrogen,phosphorus and potassium fertilizer by 4.41%,4.31%and 3.05%,and the income by 939.15 yuan/hm^(2).[Conclusion]The input-output ratio of formula fertilization and conventional fertilization was greater than 1,but the profit of formula fertilization was greater than that of conventional fertilization,which indicated that the investment of formula fertilization was more scientific.