论文部分内容阅读
甘薯茎线虫病俗称糠心病,是一种危险性、毁灭性的病害,主要侵染甘薯种苗的茎蔓,为害薯块,致使茎蔓、块根发育不良,块小、畸形,严重田块植株发黄枯死,薯块腐烂,造成严重减产,甚至绝收。其防治措施如下。1.建立无病留种地。选多年来未种过甘薯的无病田块,栽植无病健壮的种苗,建立留种田。采用剪苗或插春蔓,使用无病虫菌肥、水,收获时单收单藏。
Sweet potato stem nematode disease commonly known as heart disease, is a dangerous and devastating disease, mainly infected sweet potato seedling stems and vinegar, causing potato, resulting in stalk, root tuberous dysplasia, small pieces, deformity, serious field plants Yellowing dead, tuber rot, resulting in serious production cuts, or even absolute. The prevention and cure measures are as follows. 1. Establish non-disease-based farming. Selected for many years not planted sweet potato disease-free plots, planted disease-free robust seedlings, to establish stay farming. Using cut or inserted spring vine, the use of pest-free fertilizer, water, harvest single receipt.