从立冬到春节期间进行的农田灌溉,称为冬灌;从春节到播种期间进行的灌溉,称为春灌.二者统称为冬春灌.我省西部和南部,十春九旱,其它地区每年也都有不同程度的春旱,对农业生产威胁很大.旱田冬春灌是解决春旱保墒的有效措施. Farmland irrigation during the period from the establishment of the winter to the Spring Festival is called winter irrigation, and irrigation from the Spring Festival to sowing is called spring irrigation. Both are collectively called winter and spring irrigation. The western and southern part of our province, Have different degrees of spring drought, a great threat to agricultural production. Winter and spring irrigation is an effective measure to solve drought and soil moisture.