内蒙古河套灌区中低产田占耕地面积的三分之二，增产潜力大。主要靠引黄自流灌溉，但是排水不畅。目前发展农业生产主要限制因素有盐碱重、养分低和土壤板结等。为此在田间进行试验研究，有针对性往土壤中增加物质，探索中低产田的增产途径，从而改良土壤，发展农业生产。 Inner Mongolia Hetao irrigation area of ​​low-yielding fields account for two-thirds of cultivated land, yield potential. Mainly rely on the Yellow River gravity irrigation, but poor drainage. At present, the main limiting factors for the development of agricultural production are saline-alkali weight, low nutrient content and soil compaction. To this end in the field of experimental research, targeted to the soil to increase material, to explore ways to increase yield in the middle and low yield fields, so as to improve soil and develop agricultural production.