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代县地处山西省东北部,基本地貌由山地、丘陵和平川盘结而成。全县耕地面积60万亩,其中中低产田面积占71.3%。摸清中低产田的类型,并经过行之有效的改良措施,对中低产田进行改良,提高中低产田的综合生产能力,是实现农业高产、高效的有效途径,也是发展可持续农业的必由之路。1中低产田类型代县中低产田面积42.8万亩,占总耕地面积的71.3%。通过对全县耕地地力状况的调查,并根据土
County is located in northeastern Shanxi Province, the basic landscape from the mountains, hills and rivers formed. County area of 60 acres of arable land, of which low-yield fields accounted for 71.3%. Finding out the types of low and medium-yielding fields, and through effective improvement measures, to improve medium and low-yielding fields to improve the comprehensive production capacity of middle and low-yielding fields is an effective way to achieve high yield and high efficiency of agriculture and the only way to develop sustainable agriculture . 1 Middle and low yield field type Dai County has 428,000 mu of middle and low yield farmland, accounting for 71.3% of the total cultivated land area. Through the investigation of the county’s arable land conditions, and according to soil