摘要
应用多元二次肥料效应数学模型，根据种肥、追肥、密度和甜菜产量结果，得出粉沙壤土肥料密度综合效应方程y＝1954．524＋10．334x1＋31．890x2＋130．027x3＋68．925x1x2＋7．775x1x3＋26．700x2x3＋124．435＋41．082－124．811。用此方程估测甜菜产量和实际产量极为接近。
By using multi-quadratic mathematical model of fertilizer effect, the equation of synthetical effect of fertilizing and planting density on the beet in the power sandy loam soil was given according to the seed manure, planting density and yield of beetroot. it is: y = 195.524 + 10. 334x1+ 31. 890x2 + 130 .027x3 + 68 .925x1x2 + 7. 775x1x3 + 26. 700x2x3 + 124.435 + 41 .082 -124. 811 . The beetroot yield that was estimated by the equation was much close on actual yield.And it can be used as theore tieal basis for fertilization and rational close planting on the beet.
出处
《内蒙古民族大学学报》
1998年第1期39-41,46,共4页
Journal of Inner Mongolia University for the Nationalities
关键词
甜菜
施肥
种植密度
Beet
Fertilization
Planting density
