论文部分内容阅读
水稻产量是以每亩穗数、每穗颖花数、结实率及千粒重四个要素构成的。在生产实践中往往在产量低的情况下(700斤以下),这四个要素通过一定的栽培措施,可以一齐上;但是亩产在800斤以上时,这四个要素就会发生矛盾,往往穗数上去了,颖花数就下降;每穗颖花数上去了,但每穗的结实率又会下降。因此,多年来的实践告诉我们,在高产栽培条件下,要特别注意这一矛盾,使这四个要素统一起来不使矛盾激化而减产。要注意根据条件有所侧重,要抓住主要矛盾。
Rice yield is based on the number of spikes per acre, spikelets per panicle, seed setting rate and grain weight of four elements constitute. In the production practice is often in the case of low yields (700 kg or less), these four elements through certain measures of cultivation can be together; but when the yield of 800 pounds or more, these four elements will be contradicted, often The number of spikes went up, the number of spikes dropped, and the number of spikes per spike went up, but the rate of seed setting per panicle dropped again. Therefore, many years of practice tell us that under the conditions of high-yielding cultivation, special attention should be paid to this contradiction so that the four elements can be unified to reduce production without intensifying the contradictions. We must pay attention to depending on the conditions, we must grasp the main contradictions.