稻曲病化学防治技术研究

稻曲病化学防治技术研究(5500字)
摘 要：稻曲病又称伪黑穗病，多发生在水稻收成好的年份，农民误认为是丰年征兆，故有“丰收果”俗称。此病在世界大多数稻区都有发生，我国亦早有记载。在华南双季稻区虽向有发生，但20世纪60年代前发生零星，为害轻微，不为人们所注意。70年代以来，随着新品种的引进，杂交稻的发展和施肥水平提高，此病发生有逐年上升之势，不少地方造成较大损失。本文根据对稻曲病化学防治用同的药剂和不同的施药次数对稻曲病的防治效果提出相应的防治指导。
关键词：水稻  稻曲病  防治技术  施药次数  不同药剂

Several different chemicals on the control effect of rice song disease research
Abstract：Rice also called pseudo Heisuibing curved disease, occurs in rice harvest good year, farmers mistaken for, so have good sign known fruit "" bonanza. The disease most in the world, China has seen nurseries also recorded earlier. Though ShuangJiDao area in south China to have happen, but occurred before the 1960s, mild, not harm sporadic attention for people. Since the 1970s, along with the introduction of new varieties, hybrid rice development and fertilizer levels increase, the disease occurs with increasing trend, many places to cause bigger loss. According to the illness of rice false with chemical control with potions and different times of pesticide control effect of rice song disease to put forward the corresponding prevention guidance.
Key words：Rice；Rice false smut; Prevention and control technology; Spraying number
; Different elixir

目    录
摘要 …………………………………………………………………………………………………4
关键词 ………………………………………………………………………………………………4
1 前言 ………………………………………………………………………………………………4
2稻曲病………………………………………………………………………………………………5
2.1症状…………………………………………………………………………………………5
2.2病原…………………………………………………………………………………………5
2.3发病规律…………………………………………………………………………………………6
2.4防治方法…………………………………………………………………………………………6
2.5注意事项…………………………………………………………………………………………6
3 材料与方法………………………………………………………………………………………7
3.1 试验作物………………………………………………………………………………………7
3.2 实验药剂………………………………………………………………………………………7
3.3 试验安排………………………………………………………………………………………7
3.4 调查与统计方法………………………………………………………………………………8
3.4.1 调查方法和内容……………………………………………………………………………8
3.4.2 计算公式……………………………………………………………………………………8
4 结果与分析…………………………………………………………………………………………8
4.1 各药剂不同施药次数对稻曲病的防治效果的比较…………………………………………8
4.2不同各施药时期各处理对稻曲病的防治效果………………………………………………10
5结果与分析…………………………………………………………………………………………10
参考文献………………………………………………………………………………………………11
致谢……………………………………………………………………………………………………12