【摘 要】
：
北方粳稻区水稻旱育秧具有省工、省水、省成本及返青快、增产显著的特点,但由于种种原因,苗床有时会发生生理性死苗现象,给水稻生产造成了严重的影响。正确分析和判断苗床死
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北方粳稻区水稻旱育秧具有省工、省水、省成本及返青快、增产显著的特点,但由于种种原因,苗床有时会发生生理性死苗现象,给水稻生产造成了严重的影响。正确分析和判断苗床死苗原因,并及时采取补救措施,是保证夺取水稻高产的关键所在。
However, due to various reasons, the phenomenon of physiological dead seedlings sometimes occurs on the seedbed, which has a serious impact on rice production. Correctly analyzing and judging the reasons for dead seedlings in the seedbed and timely remedial measures are the key to ensuring the high yield of rice.
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