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小麦是我县主要旱粮作物之一,历年种植面积达24—30万亩,占旱地面积的80—90％以上。但三十年来小麦产量一直很低,平均亩产仅65.8斤,年度间小麦单产的变化幅度为30—128斤。造成小麦低产的原因固然很多,但赤霉病是一个重要原因,由于每年都有不同程度的危害,对小麦稳产高产的影响很大。为了提高对小麦赤霉病的防治效果,本文拟对小麦赤霉病发生发展的气候条件作一分析,以便为小麦赤霉病的测报提供一些依据。一、赤霉病发生发展的关键期由于赤菌源、感病生育期、栽培措施和气候条件等的不
Wheat is one of the main dry grain crops in our county. Over the years, the planted area has reached 24-30 million mu, accounting for 80-90% of the dry land area. However, the output of wheat in the past 30 years has been very low, with an average yield of 65.8 kg per mu. The annual yield of wheat varies 30-128 kg. Although there are many reasons for the low yield of wheat, scab is one of the most important causes. Due to the varying degrees of harm each year, it has a great impact on the stable and high yield of wheat. In order to improve the control effect on wheat scab, this paper intends to analyze the climatic conditions for the development of wheat scab in order to provide some basis for the determination of wheat scab. First, the critical stage of the development and development of scab due to the source of gonococci, susceptible growth period, cultivation measures and climatic conditions, etc.