论文部分内容阅读
近几年,随之辣椒种植面积不断扩大,死秧现象时有发生,给生产带来很大不便。辣椒死秧大致可分为非传染性死秧和传染性死秧两种。非传染性死秧主要是早春育苗时,因土温低湿,或育苗后期土壤过干过湿和施用未腐熟的有机粪肥所引起。传染性病死主要是病毒病、青枯病(细菌性病害)。菌核病、立枯病、疫病、灰霉病(真菌性病害)引起。由于病因不同,防治方法也不同.
In recent years, along with the continuous expansion of pepper planting area, the phenomenon of dead seedling occurs from time to time, which brings great inconvenience to production. Dead chili can be divided into non-infectious dead seedlings and dead dead seedlings two. Non-contagious dead seedlings are mainly early spring nursery, because of low temperature and humidity, or soil over-wetting late nurseries caused by the application of organic fertilizer is not decomposed. Infectious diseases are mainly viral diseases, bacterial wilt (bacterial diseases). Sclerotinia sclerotiorum, blight, blight, gray mold (fungal disease) caused. Due to different causes, prevention and treatment methods are also different.