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水稻抽穗扬花后 ,科学合理的水浆管理能够有效提高根系活力 ,延长根茎叶的功能期 ,提高结实率和粒重 ,从而提高产量。齐穗后由于干旱或过早断水 ,造成籽粒不饱满 ,结实率下降 ,千粒重降低 ,不仅严重影响产量 ,且使稻米品质下降。然而在这个时期内田间倘若继续保持水层 ,会导致
After heading and flowering, scientific and rational water slurry management can effectively improve root vigor, prolong the functional period of rhizomes and leaves, increase the seed setting rate and grain weight, and increase the yield. After heading, due to the drought or premature watering, the grains are not full, the seed setting rate is decreased, and the grain weight is reduced, which not only seriously affects the yield but also reduces the quality of rice. However, during this period, if the water layer continues to be maintained in the field, it will result