研究表明,长期不同耕作处理对白浆土中养分影响不同。总的规律是:免耕比深松、普翻更利于有机质、全磷的积累和减缓全氮的下降。在对土壤中养分的有效化方面,免耕不如深松和普翻处理。三种耕作处理小区中,玉米、小麦、大豆产量均以免耕最低,玉米和小麦产量深松高于普翻。 Studies have shown that long-term different tillage treatments have different effects on nutrients in albacore soil. The general rule is: no-tillage than subsoiling, Pu-turn more conducive to the accumulation of organic matter, total phosphorus and slow down the decline of total nitrogen. No-tillage is not as good as subsoiling and general-plowing in terms of soil nutrient availability. Among the three tillage communities, the yields of maize, wheat and soybean were lowest in no-tillage and the yields of maize and wheat were higher than those in normal tillage.