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关于氮磷化肥在甜菜上的最佳经济用量一文,曾发表于《内蒙古农业科技》1983年一期上,初步看法是:在中肥力的土壤上,尿素的最佳经济用量为每亩28.1斤,三料磷肥的用量为28.5斤。但是,生产上往往是氮磷配施,肥料效应有氮肥的主效应、磷肥的主效应以及氮磷肥配合的交互效应。因之,前一段进行的固定一个因素,变化另一个因素的单因子试验,只能反映生产上单独施用氮、磷时的概况。
On nitrogen and phosphorus fertilizer in sugar beet the best economic use of a text, has been published in “Inner Mongolia Agricultural Science and Technology” 1983 a period, the initial view is: in fertile soil, urea, the best economic output of 28.1 kg per mu , The amount of three used phosphate fertilizer 28.5 kg. However, the production is often associated with nitrogen and phosphorus, the main effect of fertilizer effect of nitrogen, phosphate and the main effect of nitrogen and phosphorus interaction with the interaction effect. Therefore, the one-factor test of fixing one factor and changing another factor carried out in the previous paragraph can only reflect the general situation when nitrogen and phosphorus are separately applied in production.