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一改播前不晒种为晒种 晒种可提高种子发芽率和发芽势,还可以杀死种子表面的部分病菌,减少水稻病害发生。选晴天将稻种放在晒布上均匀摊薄勤翻,晒2—3天。 二改风选种子为先风选再溶液洗 风选种子难以吹走秕粒,这些秕粒出苗后苗质弱,易感病,分蘖少,不利于高产。所以风选后还应用泥水或盐水选种,选出的稻种均匀饱满,发芽势强,生长强壮,分蘖多,易成壮苗。 三、改种子不化控为化控处理 经过化控处理的种子,根系发达,增加分蘖,同时秧苗浓绿健壮,抑制了青枯病、立枯病的发生。用15％多效唑可湿性粉刺20克冲水50公斤
A change before sowing for the sun drying species can increase seed germination rate and germination potential, but also can kill part of the germs on the surface of the seed to reduce rice disease. Select the sunny rice will be placed on the cloth evenly diluted ground Qin, sun 2-3 days. Second, change the wind selection of seeds for the first wind again re-solution of the wind washing seed is difficult to blow away tablets, these seedlings after emergence of seedlings weak, susceptible to disease, less tiller, is not conducive to high yield. Therefore, after the wind election should also use muddy water or salt selection, the election of rice evenly full, strong germination, strong growth, more tillers, easy to strong seedlings. Third, the seeds do not change the chemical control After the chemical control treatment of seed, developed root system, increase tillering, seedling thick green while strong, inhibiting the occurrence of bacterial wilt, damping-off. With 15% paclobutrazol wettable powder 20 grams flush 50 kg