防治辣椒疫霉病的甲霜灵缓释性片剂的研究

A Study on the Low Release Tablet Preventing Phytophthora Blight of Pepper

通过杀菌剂平皿筛选，选出甲霜灵为防治辣椒疫霉菌较理想的药剂，但用甲霜灵灌根药效仅有７～１０天。在甲霜灵中加入对镰刀菌、丝核菌有效的杀菌剂及磷、钾、硼、锰、锌等营养元素，再配入缓释性添加剂，用压片机压制成缓释性冲剂，经平皿抑菌检验，埋入土壤中的缓释性片剂５５天后还有一定的抑菌能力，田间防治效呆可达８２．４％～９２．５％。

Ridomil a good effect fungicide of controling the phytophthora blight of pepper was screened by culture dish screening test. Because the effect used Ridomil to inearth is 7～10 days,so that we make low release tablet The low release tablet is made of fungicides to control Phytophthora, Fusarium and Zhizoctonia, K2HPO4, microelement, lanthanide and control release additive. The granule can control fusarium wilt and Phytophthora blight. The control effect of the tablet in culture dish for the fungicides is effective after it is buried in the fields for 35～60 days. The control effect of the tablet used in the fields to Phytophthora blight and fusarium wilt once is about 55 days. The control effect of using the tablet to fusarium wilt and phytophthora blight can reach 82. 4%～92. 5%.