摘要
近二十年来,国内外化肥定量试验都归结为配置施肥方程并用技术经济的方法计算最佳施肥量。由于许多非试验因素的影响,常使施肥方程在同一模式下也出现多种形式。本文对单因子、双因子二次效应施肥方程进行了分类,得到了判别方程类型的方法。尤其就非典型效应方程实际应用问题进行了研究,提出了从非典型二元二次施肥方程中汲取有用的试验信息的方法——剖分法。
In the last decades,the purpose of conducting fertilizer quantitative trials, both in China and abroad,was,in general,to fit fertilizer equations and to evaluate optimum fertilizer doses by the input-output methods.Because of of the disturbance of other uninteresting factors,the fertilizer equations of the same model are often in different forms. In this paper,quadratic response functions for one or two factors were classified,the discriminating methods for the types of the equations were found. In particular,this paper discusses the application of non-typica lresponse func- tions and proposes amethod of dissection to draw available experimental infor- mation from these response functions.
关键词
施肥
方程类型
剖分法
discrimination
Response function
Dissection
fertilizer equation
