【摘要】 经过试验表明0.4%低聚寡糖素可以用于防治水稻稻瘟病,2.25L/hm20.4%低聚寡糖素+2.25L/hm2原沣源植物营养剂的防治效果最高,3.75L/hm20.4%低聚寡糖素较次之。0.4%低聚寡糖素不污染环境,对作物安全,不产生药害。虽然25%施保克也有一定的防治效果,但易污染环境,长期使用易使稻瘟病病菌产生抗药性。更多还原

【Abstract】 The tests shown that the 0.4% Oliho chitosan could be used to control the rice-blast disease(Pyriculariu oryzae Cav).The treating level that Oliho chitosan 2.25L/hm2+Yunfengyun plant nutrient 2.25L/hm2 dosage had the best control effect. The Oliho chitosan 2.25L/hm2 dosage was the second and no pollution to environment, no harm to the plant. The 25% Sportak (prochloraz) also had the certain control effect to the rice-blast disease, but it would remain certain pollution to the environment and reduce the resistance that the rice-blast disease to the sportak.更多还原