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我县五十年代以纯作直播夏玉米为主,单产仅100公斤左右。六十年代中期改这春玉米,将纯作改为间套作,单产提高到300公斤以上。七十年代以后,由于杂交玉米种和营养钵育苗移栽的推广应用,单产上升到400公斤上下。自七十年代末少数地方在春玉米育苗移栽的基础上,将育苗期适当推迟于麦收后移栽,玉米后茬继续接种饲料或经济作物,取得了初步经验,八十年代便在大面积生产上逐步推开,到1988年麦茬移栽玉米在全县已扩种到2.2万多亩,平均单产达400公斤左右,并出现了纯作亩产过450公斤、间作折实超600公斤的高产典型。一、麦茬移栽玉米的优越性(一)提高复种指教,增加粮食产量和经济效益
In the fifties of my county, live-based summer maize was the main production, yielding only about 100 kg. In the mid-1960s, this spring maize was changed from pure work to intercropping and the yield was raised to over 300 kg. Since the seventies, due to the popularization and application of hybrid maize seedling and nutrition bowl seedling transplanting, the yield has risen to 400kg. Based on the transplanting of spring maize seedlings in a few places at the end of the seventies, the early nursery period was postponed after transplanting, the subsequent inoculation of forage or cash crops after maize harvesting achieved preliminary experience. In the 1980s, The gradual opening up of production, to 1988 wheat stubble transplanting corn in the county has been expanded to 22,000 mu, with an average yield of about 400 kilograms, and there has been purely mu per 450 kilograms, intercropping more than 600 kilograms High yield typical. First, the superiority of wheat stubble transplanting corn (A) to improve cropping advice, increase food production and economic benefits