【摘要】 本研究用通用旋转组合设计的方法,对影响玉米产量可定量的主要栽培措施:密度、有机肥、氮、磷、钾的施用量,播期、追肥期、定苗期和产量的关系进行了综合定量分析研究;在建立较为理想数学模型的基础上,用电子计算机优选出不同生产条件下的最佳配方,从而为玉米规范化生产提供了一定的理论依据。更多还原

【Abstract】 A rotational combination design was used in this studyto investigate the effects of some main cultivating measures on the corn yield,including plant densities,amount of organic manures,rates of N,P,K,fertilizers,time of sowing, time of fertilizer dressings and time of final thinning.The relationships among these affecting factors were statistically analyzed.Some rational mathematical models were formulated for the choices in different conditions.This study will provide theoretical bases for developing systematic models of corn production.更多还原