庄稼长不好,有可能是稻虱在偷吃-z6尊龙官网入口

home product case 庄稼长不好,有可能是稻虱在偷吃
庄稼长不好,有可能是稻虱在偷吃

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introduction:褐稻虱成虫和若虫均能为害,多聚集于稻株基部吸取汁液,阻碍水稻的生长,为害严重时,稻丛下部变黑褐色,渐渐全株枯萎。水稻孕穗期受害后往往不能出穗或成“包颈”的空粒穗;抽穗后被害,则影响谷粒饱满度,千粒重下降,造成严重的减产。在取食期间,褐稻虱易使稻株发生煤烟病。此外褐稻虱还能传播水稻病毒病。

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experimental operation of frozen grinder jxfstprp-cl on grinding fresh pigskin samples
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浙江大学愈伤组织研磨实验
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