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南方双季稻区,比较突出的是晚稻的缺肥。虽然部分山区有压青的习惯,但由于近年来复种面积的扩大,开辟晚稻肥料的来源,更是一个极其重要的任务。本省红壤很多,加以群众又有压青沤肥的习惯,利用红壤旱地种植夏季绿肥,以解决改变耕作制中双季稻区晚稻缺肥的问题,有其重要意义。 本站从1953—1956年,曾先后向各地引种夏季绿肥,经过几年试种结果,初步得出以紫穗槐、猪屎豆、野百合、羽扁豆等几种夏季绿肥,青量高,栽培容易,生长茂盛,适合本区栽种。本试验在进一步测定这几种夏季绿肥的肥效及对晚稻的增产效
Southern double cropping area, the more prominent is the lack of fat late rice. Although some mountain areas have the habit of depressing green ground, it is an extremely important task to open up the source of late rice fertilizers because of the expansion of the area for multiple cropping in recent years. There are many red soils in the province, and it is also of great significance for the masses to apply green manure as a fertilizer to cultivate summer green manures in the drylands of red soils to solve the problem of missing manures in double cropping rice fields. From 1953 to 1956, this site introduced summer green manure successively to different places. After several years of trial planting results, it was initially concluded that summer green manure with Amorpha fruticosa, Crotalaria lutea, wild lily, Cultivation is easy, lush growth, suitable for planting in this area. This test is to further determine the fertilizer efficiency of these summer green manures and increase yield of late rice