搜索结果: 1-1 共查到“经济学 Plant Population Density”相关记录1条 . 查询时间(0.109 秒)
Effects of Plant Population Density on Net Revenues from Ultra-Narrow-Row Cotton
Plant Population Density Net Revenues Ultra-Narrow-Row Cotton
2008/12/10
A common characteristic of ultra-narrow-row cotton (Gossypium hirsutum L.) production is the use of high plant population densities (PPD) compared to wide-row cotton. Farmers are concerned about the h...