水稻从抽穗到成熟这段时间称为结实期。在这段时间的水管理上,往往有人为节约各项费用不灌水,或为了促进早熟提前落水,这些做法都是不科学的,是违背水稻需水规律的。试验证明,水对水稻结实期生理活动起着重要的作用,它可以帮助水稻吸收更多的养分,积累干物质,同时也能加快水稻灌浆速度,提高地温,促进早熟。据星星哨灌溉试验站试验,水稻结实期田面有水无水,不但对水稻的产量影响很大,同时也影响米质。详见下表: Rice from heading to maturity is called the period of maturity. At this time of water management, people often save water for irrigation, or prematurely cut off water. All of these practices are unscientific and are against the principle of water demand for rice. Experiments show that water plays an important role in the physiological activities of rice during its fruiting period. It can help rice to absorb more nutrients and accumulate dry matter, and at the same time it can speed up rice grain filling rate, increase ground temperature and promote premature ripening. According to the Star Whistler Irrigation Experimental Station test, rice paddy field surface water and water, not only has a great impact on rice yield, but also affect the quality of rice. See the table below