防治穗颈瘟有很多切实可行的办法。在栽培防病措施中,把早造水稻安全抽穗期延到6月中旬也是一种办法。不仅会减轻穗颈瘟发生为害,而且会提高结实率和千粒重。(一)不同抽穗开花期穗颈瘟发生情况1980—1982年,新兴县对不同品种调查表明,从5月下旬至6月上旬抽穗的田块,穗颈瘟率比6月中旬抽穗的一般高出1—2倍,最高的4—5倍,病情指数差异也很大 There are many practical ways to control panicle blast. In the cultivation of disease prevention measures, the early creation of rice safety heading date is also a way to mid-June. Not only will it reduce the occurrence of panicle blast, but will also increase the seed setting rate and 1000-grain weight. (I) Occurrence of panicle blast during different stages of flowering and flowering In 1980-1982, a survey of different cultivars in Xinxing County showed that the panicle blast rate was generally higher than that of mid-June heading from the late May to the early June 1-2 times, the highest 4-5 times, the disease index is also very different