论文部分内容阅读
前言土传植物病毒病在防治方法上,一般多采用抗病品种,轮作、土壤消毒等项措施。有关抗病性的鉴定,前文作了报道。本文论述追施化肥控制小麦黄花叶病试验。据病田调查结果,追施化肥有降低病情的作用,但各地防治效果表现不一。为了探索肥料类别,适宜的追肥时间以及追肥次数,以求达到增强植株抗性压低病害损失的目的。我们从1978年开始,在信阳地区农科所重病田进行追肥试验研究工作,本文主要报导三年来有关研究结果。材料和方法 (一)试验处理项目:1、基肥每亩混施钾肥17斤(60％kCL);2、病害普发期(发病率不超过20％,一般2月上、中旬)
Preface Soil genetic diseases in the prevention and treatment of plant diseases, the general use of more resistant varieties, rotation, soil disinfection and other measures. The identification of disease resistance, previously reported. This article discusses topdressing fertilizer control wheat yellow mosaic disease test. According to the disease survey results, topdressing the role of fertilizer to reduce the disease, but the performance of prevention and treatment around the different performance. In order to explore the type of fertilizer, fertilizer time and the number of suitable top dressing, in order to achieve the purpose of enhancing plant resistance to reduce disease losses. We started from 1978, in the Xinyang area of agricultural research work on top dressing disease, this article mainly reports the results of the study over the past three years. Materials and methods (I) Test and treatment items: 1. The base fertilizer is mixed with 17 kg (60% kCL) of potassium fertilizer per acre; 2. The disease is common (the incidence rate does not exceed 20%