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为探明不同有机肥配合施用对麦棉的增产效应,我们从1979～1983年连续五年在县农科所试验场进行了小区试验.土壤为粉沙壤上,0～20厘米土壤有机质1.194%,全氮0.098%,碱解氮8.9ppm,<0.01毫米粒径颗粒27.62%,<0.001毫米粒径颗粒13.54%.设六个处理(表 1),除无肥处理外,各处理均每亩年施纯氮34斤,其中夏熟施13.6斤,秋熟施20.4斤.绿肥为苕子(鲜草),4月中旬挖翻,深6寸左右;秸草用当年麦秸,7月上旬挖翻,深
In order to find out the effect of increasing the yield of wheat and cotton with the application of different organic fertilizers, we conducted a plot experiment in the experimental farm of the county agricultural science station from 1979 to 1983 for five years in succession.The soil is silt soil, 0 ~ 20 cm soil organic matter 1.194 %, Total nitrogen 0.098%, alkaline hydrolysis nitrogen 8.9ppm, <0.01mm particle size particles 27.62%, <0.001mm particle size particles 13.54% There are six treatment (Table 1), except for no fertilizer treatment, each treatment Mushi years of pure nitrogen 34 pounds, of which 13.6 kg of summer cooked Shi, Shi Zhu Shi facilities 20.4 kg green manure (fresh grass), dug in mid-April, about 6 inches deep; straw with wheat straw that year, early July Dug turn, deep