防治西瓜和籽瓜根病的胶悬剂及缓释性片剂的研究

A Study on the Colloidal Suspension FungicideTreating Seed and The Control ReleaseTablet Formulation Preventing Root Disease of Watermelon and Seed Watermelon

利用合成粘胶剂和天然粘胶剂混合配制的胶悬剂成膜添加剂，加入对瓜枯萎镰刀菌、疫霉菌杀灭效果良好的杀菌剂及多种营养元素配制成防治瓜类根病的种衣剂．利用筛选出的杀菌剂加入磷酸二氢钾、稀土元素、微量元素和缓释性添加剂，混合后压成片剂，用于防治瓜类枯萎病和疫霉病．室内平。抑菌测定证实在土中埋了３５～６０天的片剂仍有一定抑菌效果，田间小区及大田施药结果表明，对枯萎病防治获得良好效果．田间施药一次，药效可达５０天左右．胶悬剂与缓释性片剂配合使用防治效果可达９１．３％．

This additive is a mixture of natural adhesive and artificial adhesive.The colloidal suspensions made of microelement, lanthanide,K2HPO4 and fungicides used to prevent Fusarium wilt and phytophthora blight.The control release tablet formulation is madeof fungicides,K2 HPO4,mioroelement,lanthanide and control release additive.The tabletcan control fusarium wilt and Phytophthora blight.The control effect of the tablet in culturedish for the fungicides is effective after it is buried in the fields for 35～60 days.The controleffect of the tablet used in the fields to fusarium wilt for one time is about 50 days.The control effect of using both the colloidal suspension and the tablet tofusarium wilt and phytophthora blight can arrive at 91.3%.