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1980年我所搞了一块面积14.5亩棉花高产试验田。土质为粉沙壤土,地力中上等,全氮含量0.079％,全磷含量0.16％,有效钾含量77.1ppm,每亩秋施圈肥8000斤。前茬为棉花。底墒和口墒都比较适宜。品种鲁棉一号。每亩留苗4080株,实收3900株,单株
In 1980 I made an area of 14.5 acres of cotton yield test field. Soil is silty loam soil, middle ground in the best, 0.079% of total nitrogen, total phosphorus 0.16%, effective potassium 77.1ppm, apricot per acre autumn 8000 kg. The former crop is cotton. At the end of moisture and mouth moisture are more appropriate. Lumi cotton varieties. Miao Miao 4080 per acre, harvest 3900, single