CAJ | 학술논문

研究了不同秸秆还田量对免耕黑土速效养分含量和玉米产量的影响.结果表明:秸秆还田可以增加土壤表层(0～10 cm)碱解氮、速效磷和速效钾含量,以5000 kg/hm~2秸秆还田处理效果最为明显.研究同时发现,玉米产量与碱解氮含量呈显著的相关性(P<0.05).
연구료불동갈간환전량대면경흑토속효양분함량화옥미산량적영향.결과표명:갈간환전가이증가토양표층(0～10 cm)감해담、속효린화속효갑함량,이5000 kg/hm~2갈간환전처리효과최위명현.연구동시발현,옥미산량여감해담함량정현저적상관성(P<0.05).
In this study, the effects of different amounts of residue incorporation on the contents of no-tillage soil available nutrients and corn yield were examined.It showed that implementation of residue incorporation increased soil available nitrogen, available phosphorus, and available potassium in the surface layer (0 - 10 cm depths), espe-cially with a significant increase under 5000 kg/ha residue incorporation.Corn yield were well correlated with soil available nitrogen (P<0.05).