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作物学报 ›› 1980, Vol. 6 ›› Issue (03): 147-160.

• 研究简报 • 上一篇    下一篇

种植密度和作物产量——产量和密度的数量关系及其分析(续)

莫惠栋   

  1. 江苏农学院
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1980-09-12 网络出版日期:1980-09-12

PLANTING DENSITY AND CROP YIELD——AN ANALYSIS OF QUANTITATIVE RELATIONSHIPS BETWEEN YIELD AND DENSITY

Mo Huidong   

  1. Jiangsu Agricultural College
  • Received:1900-01-01 Revised:1900-01-01 Published:1980-09-12 Published online:1980-09-12

摘要: <正> 上述方程是 Farazdaghi,H 等(1968)提出的。最终产量稳定律定义群体最终产量为一常数,即 yx=常数。Farazdaghi 等认为,这个定律并不一定都是符合实情的,因为过高密度下的产量可能下降,故修改最终产量稳定律为:yx~c=常数。将上述修改式结合 logistic 生长曲线就导出(5.1)和(5.2)。

Abstract: This paper dealt with the mathematical models for determiningthe optimum densities x_(opt·n)and x_(opt·e)and their ranges,at whichthe maximum Y_n and Y_e could be respectively expected.Let Y bepopulation yield,i.e.final yield per unit area and x—density,i.e.number of plants per unit area,so that

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