摘要
本文基于“晋光“和”国光”两个品种十四年的投入产出资料,建立苹果品种间经济效益对比的指标体系及计算方法,用Y=Ax^3+Bx^2+Cx+D逐步回归拟合,确立了两品种幼树期—盛果期的树龄与产量、产值、纯收入、龄均纯收入和累计成本盈利率间的回归关系,并从树龄、资金利用、土地利用的经济效益进行对比分析。
The index system and the calculation methods were established and determined
for the comparative analysis of economic efficiency in apple verieties.The relationships of
the age of tree to the production of fruit. The output value, the net income, the average net
income per year and the accumulative investment profit ratio were analysed by the progres-
sive regression form early stage of fruit tree and economic result of tree,capital utilization
and the soil productivity were made comparsion between 'goguang' and 'jin guang'apple.
And also a BASIC programme of comparsion were provided in present study.
出处
《北京农学院学报》
1992年第2期91-97,共7页
Journal of Beijing University of Agriculture
关键词
苹果品种
经济效益
apple economic efficiency
BASIC programme
