松嫩平原黑土区施肥与土壤速效钾累积关系的研究  

Research on The Relationship between Fertilization and Available Potassium Accumulation of Soil in The Blackland of Songnen Plain

作　　者：富东英[1] 张清 侯中田[3] 

机构地区：[1]天津农学院,天津300384 [2]天津泰达生态发展有限公司 [3]东北农业大学

出　　处：《黑龙江八一农垦大学学报》2006年第5期30-33,共4页journal of heilongjiang bayi agricultural university

摘　　要：为研究在固定施肥模式下速效钾的累积量的变化,采用回归旋转组合设计实施试验,建立了松嫩平原黑土区土壤速效钾与农肥,化肥和秸秆为实验因子的数学模型,结果表明,要使每667m2速效钾保持在适宜的230～270mg/kg水平上,应在5年中施用农肥832～1121kg,化肥34～947.8kg,秸杆93～122kg。In order to investigate the variety of available potassium accumulation under immobile fertilization, a mathematical model which take available potassium accumulation of soil in the blackland of Songnen plain, manure, fertilizer and straw as experiment factors was established. The results showed if keep the accumulation of available potassium in 230-270 mg/kg, the employ of manure, fertilizer, straw in five years should be 832-1120 kg, 34～947.8 kg, 93～122 kg in every 667m^2.

关 键 词：农肥 化肥 秸秆 速效钾 数学模犁 

分 类 号：S143.3[农业科学—肥料学]