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近年来,随着早稻产量的提高,用肥水平也不断增加。为了进一步提高早稻产量,提高肥料的利用率,我们根据“早稻的出叶与分蘖发生,根系生长,节间伸长和充实以至穗分化发育进程都存在着有规则的同伸关系”的原理,提出“叶龄模式施肥法”。试验经过本试验于本公社良种场进行,前茬为早熟三号大麦,属粘壤土,面积2.5亩,供试品种为“原丰
In recent years, with the increase of the output of early rice, the level of fertilizers also increased continuously. In order to further improve the yield of early rice and increase the utilization rate of fertilizer, based on the principle of “regular extension of the relationship between leaf emergence and tillering, root growth, internode elongation and enrichment, and spike differentiation and development of early rice, Proposed ”leaf age model fertilization method.“ The experiment was conducted in this commune on the seed farm. The former crop was barley No. 3 with precocious pits and a clay loam with an area of 2.5 mu. The test variety was ”