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水稻空秕粒是指不受精的空粒和受精后不能发育的半空粒,这是水稻生产上普遍存在的一种生理障碍。在正常的气候和栽培条件下,水稻的空秕粒率约10～20%;但在不正常的年份,空秕可达30～40%,甚至更高,这对水稻产量影响很大。因此,在水稻生产上除了争取多穗大穗外,还要减少空秕粒,提高结实率,增加千粒重,才能获得高产。现介绍空秕粒产生原因及其防治措施,供参考。
Rice blank rice grains are unfertilized empty grains and semi-empty grains that can not develop after fertilization, which is a common physiological obstacle in rice production. Under normal climatic and cultural conditions, the rate of rice grains is about 10 to 20%. However, in anomalous years, the grain yield can reach 30-40% or even higher, which has a great impact on rice yield. Therefore, in addition to striving for more spikelets and big ears in rice production, it is also necessary to reduce the amount of empty grains, increase the seed setting rate and increase the grain weight in order to obtain high yields. Now introduce the causes of empty tablets and prevention and control measures for reference.