前言土壤盐碱、瘠薄,气候旱涝不均,农作物病虫繁多,这是我区农业低产的主要原因。为了战胜这些自然灾害,广大农民在长期生产实践中,积累了不少经验。特别是近几年来,在党的正确领导下,依靠集体、依 Preface Soil salinity, infertility, climate droughts and floods, crop pests and diseases, which is the main reason for low agricultural output in our region. In order to overcome these natural disasters, the vast majority of peasants have accumulated a great deal of experience in long-term production practices. In recent years in particular, under the correct leadership of the party, we must rely on collectives and depending on them