赤霉病是麦类的主要病害。上海郊区每年三麦(即元麦、大麦、小麦)都有不同程度的危害,是影响夏粮稳产高产的重要因素。为搞好三麦赤霉病的气象服务,以适应科学种田的需要,本文根据有关农业科学试验资料,对赤霉病的发病及其危害轻重与气候条件的关系,作一初步分析。 上海地区常年4月中旬至5月中旬正当三麦抽穗扬花、灌浆乳熟的时候,刚好是春雨最多的季节。这时期气温逐渐回升,平均气温一般在14—18℃。由于 Fusarium head blight is the main disease of wheat. Each year in Shanghai suburbs, three wheat (ie, wheat, barley and wheat) have different degrees of harm, which is an important factor affecting the stable and high yield of summer grain. In order to improve the meteorological service of Fusarium graminearum to adapt to the needs of scientific farming, this paper makes a preliminary analysis on the relationship between the incidence of Fusarium head blight and the severity of its damage and climatic conditions according to the relevant agricultural science experiment data. Shanghai perennial mid-April to mid-May just when three wheat heading and flowering, filling milk cooked, just happens to be the most spring season. The temperature gradually rose during this period, the average temperature is generally 14-18 ℃. due to