【摘要】 以2002年《土壤学报》发表的《logistic回归模型在红壤地区早稻推荐施肥中的应用》一文的试验设置为范例,对国内外长期以来田间肥料试验中肥底确定具有随意性或盲目性及不考虑施用比例的问题进行了讨论。讨论认为,肥底设置中充分供给并无定量概念,其实质有可能过量,也有可能不足,这与肥底所要求的最佳施肥量或最大施肥量具有实质性差异。更多还原

【Abstract】 Taking "Application of logistic Regression Model in Eertilization Recommendation in Red Loam Region for Early Rice" as case,disussion on the blindness of subsoil application design both at home and abroad has been made.It is concluded that the so called "enough supply" is of no quantity conception and would bring excessive or insufficient fertilizer application.It is completely different from the optimum or maximum dosage in sussoil application.更多还原