施用秸秆堆腐肥对黑土农田养分及玉米产量的影响研究

Influences of applying stalk compost on the nutrient of field soil and corn yield of black soil

摘要: 试验研究表明应用秸秆腐解剂可快速堆腐秸秆，黑土农田施用充分腐熟的秸秆肥配施NPK化肥，耕层土壤平均年提高有机质0．4g／kg，金N 0．18g／kg，速效氮9.93mg／kg，速效磷1．8mg／kg，速效钾4mg／kg，土壤容重年降低0．02g／cm³，玉米增产15．7％。

Abstract: With the application of decomposer，the corn stalks can be decomposed quickly The utilization of this kind of compost mixed with N，P，K chemical fertilizers can increase the soil organic content by 0．4g／kg in the top soil per year，and the contents of total N，available N，P and K by 0．18g／kg，9．93mg／kg，1.8mg／kg，4mg/kg，respectively The bulk density of top soil decrease by 0.02g／cm³ ．and the corn yield increase by 15.7％．