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低温冷害是宁夏水稻生产中的一个主要灾害之一,严重影响宁夏区水稻产量的稳定增长。根据气象资料表明,每间隔3～4年就可能发生一次冷害。事实证明也如此。早在1976年,由于低温冷害使当年水稻产量只有2 865kg/hm~2,减产1.5亿 kg,1979年、1982年以及2000年以来,冷害不同程度的危害造成减产的事例也很多。如2004年青铜峡灵新村的21.3 hm~2秀优57水稻和利通区金银滩镇西滩
Chilling injury is one of the major disasters in rice production in Ningxia and seriously affects the steady growth of rice production in Ningxia. According to meteorological data show that every 3-4 years may occur once chilling injury. This proved to be the case. As early as 1976, due to chilling injury, rice output was only 2 865kg / hm 2 in the current year and the output was reduced by 150 million kg. In 1979, 1982 and 2000, there were also many cases of different degrees of harm caused by chilling injury. For example, 21.3 hm ~ 2 Xiuyou 57 rice in Lingtang Village, Qingtongxia and West Beach, Jinyintan Town, Litong District