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我场位于黄土高原半湿润易旱区的黄陵县南部原区,我们认为,“薄”、“粗”、“旱”是旱原区小麦低产的症结,而“薄”是主要矛盾,近年来从培肥地力入手,精耕细作,使小麦亩产由1972年的190斤提高到1982年的624斤。一、培肥地力。一方面用油菜、绿肥、黄豆倒茬,每年油、豆茬面积占到麦田面积的40-50％,油菜茬比连茬增产4.8-44％,黄豆茬增产14.3％。另一方面用油菜秸秆角皮还田,扩大肥源,同时农家肥、菜籽饼、氮磷化肥配合施足底肥,氮磷肥按计划产量以1:0.4-0.5比例施用,土壤养分含量不断
My field is located in the southern part of Huangling County in the semi-humid and drought-prone area of the Loess Plateau. In our opinion, “thinness”, “crudeness” and “drought” are the crux of low-yielding wheat in the arid region, while “thinness” is the main contradiction. To start from the fertility of fertilizers, intensive cultivation, the output of wheat per mu from 190 pounds in 1972 increased to 624 pounds in 1982. First, cultivate fertility. On the one hand with rape, green manure, soybean stubble, the annual oil, stubble area accounted for 40-50% of the area of wheat fields, rape stubble than stubble yield 4.8-44%, soybean stubble yield 14.3%. On the other hand with rape stalks return to the field, expanding the fertilizer source, at the same time peasant fertilizer, rapeseed cake, nitrogen and phosphorus fertilizers with the application of base fertilizer, nitrogen and phosphorus fertilizer by the planned output of 1: 0.4-0.5 ratio of soil nutrients