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抚宁县历年种植玉米27万亩,在地域上属于一年一作春玉米种植区。近年来为妥善解决粮菜争地矛盾,该县大力开展了春菜、玉米、秋菜三茬套种的种植改革,并总结出春菜争早播、保高效;玉米争全苗,保高产;秋菜争巧种、保优质的“三争”、“三保”栽培技术。目前全县种植面积已发展到10万亩,比过去种植一茬春玉米复种指数提高了两倍,亩产值增加了一千多元,开创出一条稳粮增菜的新途径。 适合三茬套种的种植模式一是1.5米的小带田,蔬菜占地100厘米,玉米占地50厘米。二是3米的大带田,蔬菜占地200厘米、玉米占地100厘米。二者虽然蔬菜玉米占地比例一致,但是大带田由于同类作物相对集中,通风透光,管理方便,对蔬菜生
Funing County in the calendar year planting 270000 acres of corn, in the area belongs to a year as a spring corn growing area. In order to properly solve the contradictions between the food and agriculture field in recent years, the county vigorously carried out the cultivation of spring vegetables, maize and autumn vegetables, and concluded that spring vegetables would be sowed early and ensured high efficiency. Seed, Paul quality “three fight”, “three guarantees” cultivation techniques. At present, the acreage of the entire county has been developed to 100,000 mu, which has tripled that of the previous crop. The mu production value has increased by over 1,000 yuan, creating a new way for stabilizing grain and increasing food supply. Suitable for three cropping intercropping mode of planting one is 1.5 meters of small strip of land, vegetable covers an area of 100 cm, corn covers an area of 50 cm. Second, a large belt of 3 meters, vegetable covers an area of 200 cm, 100 cm of corn. Although the proportion of both vegetables and corn in the same area, but the big field due to the relative concentration of similar crops, ventilation and light, easy to manage, raw vegetables