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漳平市早、晚稻在生长发育过程中,经常会遭受低温影响发生三寒,即春寒、5月寒和秋寒,春寒发生在早稻播种育秧阶段,苗期抗寒力差引起烂种、烂秧,不仅浪费种子、劳力,而且延误了季节,不利晚稻栽培。5月寒主要发生在5月下旬到6月上旬的梅雨季节,早稻正处于孕穗、抽穗阶段,尤其是减数分裂期对低温敏感,造成空秕粒增加,影响产量。秋寒发生在9月中、下旬晚稻
Early and late rice in Zhangping City, during the process of growth and development, often suffer from the effects of low temperature, such as cold in winter, cold in autumn and cold in autumn in May. Cold in winter occurs in early sowing and seedling stage, Not only waste seeds, labor, but also delayed the season, adverse late rice cultivation. May cold mainly occurs in the May rainy season from late May to early June, early rice is in the booting stage, heading stage, especially during meiosis sensitive to low temperature, resulting in increased Kong Kong tablets, affecting the yield. Autumn cold occurred in mid-September, late late rice