目前,我市耕作模式较多,稻套麦、麦套稻、稻麦双套均有一定的种植面积,为研究分析这些模式对土壤肥力、作物产量以及经济效益、社会效益、生态效益的影响,笔者于2003年秋播进行田间对比试验,旨在找出其正反影响及对应措施,为指导大面积生产提供科学依据。1材料和方法131.1试验 At present, there are a lot of farming modes in our city, and there is a certain planted area for both paddy rice, wheat paddy rice and rice and wheat. In order to study and analyze the effects of these models on soil fertility, crop yield, economic benefits, social benefits and ecological benefits In the autumn of 2003, the author carried out field comparative experiments aimed at finding out its positive and negative effects and corresponding measures, so as to provide a scientific basis for guiding large-scale production. 1 Materials and methods 131.1 test