【摘要】 本文通过２０６Ｄ最优回归设计的盆钵实验，讨论了玉米秸与风化煤配比施用对土壤团粒结构的影响，得到在玉米秸与风化煤配比施用的情况下可以促进土壤团粒结构的形成。而且当风化煤用量为１０４６５～１５０００／ｈ与玉米秸用量１０４６５／ｈ的情况下配比施用为最优施用量。更多还原

【Abstract】 This paper carries out an experiment by two factor six order regression design of D optimization.It discusses the effect on soil structure by the blending use of maize straws and weathered coal.It arrives at conclusion which can improve soil structure by the blending use of the two organic material.the optimum usage is 10 455/h maize straws and 10 455～15 000 /h weather coal.更多还原