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1990年秋,我们根据我县光,热,气,肥,水的分布特点,选择年降雨量1200毫米,年平均气温16.8℃,无霜期300天,年有效积温5300℃以上、光热充沛,稻田生产水平较高的地区示范推广双千田1000亩,达到了亩收千斤谷千元钱的指标,获得了较好的效益,现将其主要主要种植形式的效益分析和技术特点简介如下: 一、主要种植形式及经济效益及分析五种种植形式中亩粮食产量最高的是菜-制种-菜型,平均亩产678公斤;最低是瓜-粮-菜
In the autumn of 1990, according to the distribution characteristics of light, heat, gas, fertilizer and water in our county, we selected annual rainfall of 1200 mm, annual average temperature of 16.8 ℃, frost-free period of 300 days, annual effective accumulated temperature of 5300 ℃ and more, Higher level demonstration Demonstration 1000 acres of double-Qiantian, reached a thousand acres of acres of grain received thousands of dollars per kilometer index, access to better benefits, now its main forms of benefit analysis and technical features are as follows: First, the main Planting forms and economic benefits and analysis Among the five planting forms, the highest grain yield per mu is vegetable-seed-vegetable type with an average yield of 678 kg per mu; the lowest is melon-grain-vegetable