玉米秸秆还田及施磷量对黑土磷吸附与解吸特性的影响

Effects of Corn Straw Returning and Phosphorus Application on Phosphorus Adsorption and Desorption Characteristics of Black Soil

为了探讨松嫩平原玉米连作条件下施用秸秆还田和磷还田对黑土吸附和解吸特性的影响,采用两因素试验方案,研究了松嫩平原黑土区最适宜的施磷方式,主要因素是玉米秸秆还田方式,不将秸秆还田(S0),将秸秆还田掩埋(S1),并通过燃烧将秸秆还田(S2);副因素为施磷水平。

In order to explore the effects of straw returning and phosphorus returning on the adsorption and desorption characteristics of black soil under corn continuous cropping in Songnen Plain, a two factor experimental scheme was adopted in this experiment: the main factor was the way of returning corn straw to the field, not returning straw to the field(S0), burying straw to the field(S1), and returning straw to the field by combustion(S2);Because of the phosphorus application level, this paper studied the most suitable phosphorus application method in the black soil area of Songnen Plain.