蔬菜病虫发生特点与绿色防控技术

来源 :2015全国农用塑料设施大棚、温室栽培技术交流会 | 被引量 : 0次 | 上传用户:zxcvbnmzhaowei
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本文分析了蔬菜生产病虫害其发生特点是流行速度快,发生危害重,次要病虫上升为主要病虫,土传病害日趋加重等。目前,蔬菜生产中大量使用化肥、化学农药、生长调节剂等农用化学物质,使农业环境受到不同程度的污染,自然生态系统遭到破坏,土地可持续能力下降,农产品质量安全得不到保证.因此,要实施绿色防控策略,通过调节播期、选用抗病品种、水旱轮作与套作、嫁接、翻耕晒垡、无土栽培、科学肥水运筹、摘除老叶去虫。
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