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水稻从抽穗到成熟一般需40—45天。敖汉旗一般在8月10日左右齐穗,最迟不能晚于8月15日。过晚会影响产量和质量。水稻齐穗后到成熟前,是决定结实粒数和粒重的关键时期。这时营养生长已基本停止,生殖生长占主导地位。根系吸收的水分和养料,
It takes about 40-45 days from heading to maturity. Ao Han flag is generally around August 10, at the latest no later than August 15. Too late will affect the yield and quality. Before heading to maturity, the rice is the key period for determining the grain number and grain weight. At this time vegetative growth has basically stopped, reproductive growth dominant. Root absorption of moisture and nutrients,