PLANT POPULATION AND CROP YIELD
PLANT POPULATION AND CROP YIELD
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DOI：
10.1038/186022b0
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发表时间：
1960-01-01
期刊：
影响因子：
64.8
通讯作者：
NELDER, JA
中科院分区：
文献类型：
--
作者：
BLEASDALE, JKA;NELDER, JA
当作物产量和单位面积植物数之间的关系用图形表示时，有证据表明，抛物线是典型的产量是生殖生长的产物，而渐近曲线是典型的产量是营养生长的产物。通过对油菜、甘蓝和马铃薯的研究，分析了渐近曲线，并建立了方程，认为这些方程对某些环境下植物间竞争的农艺学研究有价值。M.H.
When the relationship between crop yield and number of plants per unit area is expressed graphically, there is evidence that the parabolic curve is typical where yield is a product of reproductive growth, while the asymptotic curve is characteristic where yield is a product of vegetative growth. From a study of rape, kale and potatoes, the asymptotic curve has been analysed and equations have been established which, it is maintained, have value for agronomic study of inter-plant competition under certain environments.-M.H.