栽培水稻,常因措施失当而难以获得高产,甚至造成“欢喜秧,叹气稻”的后果。近年来氮素化肥虽迅速增长,但在不少场合并未收到增肥增产的效应。由于构成稻体的物质主要来自叶的光合作用,因此,如何建立一个受光良好的高产群体是值得讨论的问题。这里就水稻高产群体的培育——群体控制顺序和促控技术的原则讨论如下。 Cultivation of rice, often due to improper measures and difficult to obtain high yield, and even cause “joy seedlings, sigh rice” consequences. In recent years, although the rapid growth of nitrogenous fertilizer, but in many occasions did not receive the effect of increasing yield. Since the substances that constitute the rice mainly come from the photosynthesis of the leaves, it is worth discussing how to establish a good light-emitting high-yielding population. Here on the cultivation of high-yielding groups of rice - the order of population control and promote the principles of technology discussed below.