摘要
"3414"试验方法是研究肥效与产量或收入之间的关系的高效简捷方法,在粮食生产中具有重大的实践指导意义。"3414"试验不仅可以用来研究氮、磷、钾3种肥料的交互作用,也可以用来讨论任意2种肥料的交互效应,还能用来讨论单一肥料的产量效应。以中肥区的水稻"3414"试验为例,借助常用的办公软件Microsoft Excel,详细讲述了建立氮、磷、钾3种肥料的施肥水平与水稻产量之间的三元二次回归曲线关系的解决方法,以为粮食生产中有关于最大产量、最大纯收入问题的求解提供简单有效的数理统计依据。
The method of the ＇3414＇ field trial is an efficient and simple way to study the relationship between fertilizer efficiency and production or income.It will put great practical guiding significance on researching grain production.The＇3414＇ field trial can be used to discuss the interaction effect of nitrogen fertilizer,phosphate fertilizer and potassium fertilizer as well as interaction effect between any of two fertilizers.Besides,it also can be used to evaluate the yield effects of any single kind of fertilizer.In this paper,took an example of the rice＇3414＇ field trial in middle fertility zone.Based on the commonly used office software Microsoft Excel,this paper introduced in detail how to establish ternary quadratic regression curve to show the relationship quantities of nitrogen fertilizer,phosphate fertilizer and potassium fertilizer and rice yield,so as to provides an effective and simple basis of mathematical statistics about the maximum yield and net income in grain production.
出处
《现代农业科技》
2012年第7期19-21,共3页
Modern Agricultural Science and Technology
