“秋分”前后,各地杂交晚稻已进入齐穗期。齐穗期干物质的积累仅完成1/3,还有2/3是在齐穗后完成的。为此,建议各地农户要抓好齐穗后的田间管理。管理重点抓好以下“五防”: 一防脱肥早衰。杂交晚稻生长后 Before and after the “autumn equinox”, the hybrid late rice around the country has entered the heading stage. The accumulation of dry matter at heading stage only completed 1/3, and 2/3 is completed after heading. To this end, it is recommended that farmers around the world should pay attention to field management after heading. Management focus on the following “five prevention”: a prevention of premature aging. Late hybrid rice after growth