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关于棉花施肥技术的一点建议宋喜祥刘新朝王子明宋增已刘晨阳仇银菊崔二刚河北省行唐县农业局０５０６００１棉根在土层中的生长及分布情况棉花属直根系作物。一般主根可达２ｍ或２ｍ以上，支根不仅在耕层２０ｃｍ内占着较大比例；在耕层以下２０～７０ｃｍ内亦相当多...
Some Suggestions on Cotton Fertilization Technology Song Xixiang Liu Xinchao Wang Zi Ming Song Zengshi Liu Chenyang Qiu Yinju Cui Ergang Agricultural Bureau of Hebei Province, Tangtang 0506001 Cotton root growth and distribution in the soil Cotton is a straight root crop. General main root up to 2m or more than 2m, branching not only in the top 20cm accounted for a large proportion; below the top 20 ~ 70cm also quite a ...