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海城县响堂乡榆树村科技示范户周启波同志,1984年在8.6分麦茬地种植夏大豆,实收372.4斤,折合亩产433,亩纯收入217.35元。麦茬夏播大豆高产的经验如下。1.选用生育期适当的高产品种。周启波选用的大豆品种是铁岭市农科所培育的大豆新品系“铁7105”。这个品系棵矮、节短、茎粗壮、结荚多、粒大,抗倒伏、抗病力强,适密植,一般亩产350斤左右,高者达400斤以上。生育期85天左右,很适合在小麦下茬种植。2.采用免耕畦作栽培法。这块地7月5日收麦,10日播种大豆。播种前不翻整土地,不作垄,不施农肥(依靠前茬肥力),不打乱原来畦埂和灌水毛渠。麦收后,在原麦畦内直接开沟下种,亩播种量25斤,随种亩施10斤磷酸二铵做口肥。大豆免耕畦作,不仅有利于及早播种,而且利于保持土壤墒情、方便灌水。
Comrade Zhou Qibo, an elder brother of Yushu Village, Xiangtang Township, Haitang County, commented that in 1984, summer soybean was planted at 8.6 cents stubble, yielding 372.4 jin, equivalent to 433 mu of mu, a net profit of 217.35 mu. Wheat stubble summer sowing high yield of experience are as follows. 1. Select the appropriate growth period of high-yielding varieties. Zhou Qibo used soybean varieties are Tieling City Department of Agriculture cultivated soybean new line “iron 7105.” This line is short, short stalks, stalks stout, pods and more, large grain, lodging resistance, strong resistance, close planting, generally about 350 kg per mu, the highest of more than 400 pounds. About 85 days of growth period, it is suitable for planting under the wheat crop. 2. No-tillage cultivation methods. This piece of land received wheat on July 5, sowing soybean on the 10th. Do not tumble the land before sowing, no ridge, no fertilizer (rely on former stubble fertility), do not disrupt the original wandering and irrigation channels. After the wheat is harvested, it is dug directly under the old wheat cotyledons, with a planting volume of 25 kg per acre and a dose of 10 kg of diammonium phosphate as a mouthfeel. No-tillage soybean cultivation, not only conducive to early sowing, but also conducive to maintaining soil moisture, easy to irrigate.