近30年来,水稻栽培技术最重要的研究成果就是“水稻生育的促控技术”。所谓水稻生育的促控技术,就是通过水肥管理措施,使水稻达到理想的长相。1.探索水稻理想长相的生育促控(1)日本水稻高产竞赛的栽培技术所谓日本水稻高产竞赛的栽培技术,就是指获得了突出高额丰产成绩的日本农民水稻栽培技术。获得高额丰产的农民栽培技术未必一致,但有相当明显的特点,其中比较突出的是1954——1963年创造的记录较高,最大特点在于着重进行土壤改良。秧田县高产稻田多分布在低温山区、河川流域等排水良好处。低温地区土壤多已旱田化,耕作层深度约18厘米,同时常深耕,所以从地表到大约25厘米深处都是松软的。这种土壤都是经过几年以至十几 In the past 30 years, the most important research result of rice cultivation technology is “the promotion and control technology of rice growth”. The so-called promotion of rice growth control technology, that is, through fertilizer and water management measures to make rice achieve the desired appearance. (1) Cultivation techniques for Japan’s rice yield competition The cultivation techniques for the Japan Rice Yield Competition refer to the Japanese peasant rice cultivation techniques that have given prominence to high yields. However, there are quite obvious characteristics. Among them, the higher record was created in 1954-1963, the most important feature is the focus on soil improvement. High-yielding rice seedlings in the county are mostly distributed in low-temperature mountainous areas and drainage areas such as river basins. Most of the soil is already dry-land in the low-temperature areas. The depth of the tillage layer is about 18 cm and often deep plowing, so it is soft from the surface to about 25 cm deep. This soil is after a few years and even a dozen