摘要
系统报道了油菜优化测土配方施肥中的七大参数：每形成百公斤油菜籽所需养分量、土壤供氮量（校正函数）、目标产量、肥料利用率、磷钾肥激发效应、磷钾肥计算系数等。经田间试验和大面积示范推广，其准确度达９１．４％，具有较大的可靠性，可作为油菜测土施肥使用。
This paper systematically deals with serven parameters to optimize the soiI testing and fer-tilizer recommendation for rape cuIture,ie, the amount of the nutrient needed by the produc-tion of per 100 kg rapeseeds, the amount of soil nitrogen supply(the corrected function),thetarget yield, the fertilizer utilization coefficient,the phospho- potash priming action,the cal-culation coefficient of phosphate and potassium fertilizer etc.Their accuracy is 91.4%,whichhas been proved in field tests and large area application. So the parameters are reliable and Canbe used in soiI testing and fertilizer recommendation for rape culture.
出处
《江西农业大学学报》
CAS
CSCD
1994年第3期227-230,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金
关键词
油菜
测土
配方
施肥
参数
产量
rape
soil testing and fertillzer recommendation
parameter
target yield
