论文部分内容阅读
生姜属蘘荷科多年生草本植物,我国早自周代民间就有种植。随着近年农村商品生产的发展,生姜的种植日趋广泛。但是,由于姜瘟的危害,使生姜产量和品质低劣,经济效益不高,影响外贸出口,是广大姜农急需解决的实际问题。现就姜瘟发生与危害的特点以及综合防治技术介绍如下。一、发病与为害症状:姜瘟即生姜青枯病,或称腐烂病。最初是在挨近泥土表面的地上茎基部出现水浸状黄褐色病斑,叶片自下而上逐渐枯黄、反卷、萎垂,呈倒伏状,易从土表轻拔即
Ginger is a perennial Herbaceous Herbaceous plants, China since the Zhou Dynasty civil there is planting. With the development of rural commodity production in recent years, the cultivation of ginger is becoming more and more widespread. However, due to the harm of ginger blast, the yield and quality of ginger is poor, the economic benefits are not high, and the export of foreign trade is affected. This is a real problem urgently needed by the majority of ginger farmers. Jiang Chu is now on the occurrence and harm characteristics and comprehensive prevention and control technology introduced below. First, the incidence and damage symptoms: ginger blast that ginger bacterial wilt, or rot disease. Initially in the soil near the surface of stems appear on the base of the dip-like tan spots, the leaves gradually yellow from bottom to top, rewinding, weeping, was lodging, easy to pull light from the soil that is