川水地是我区的粮仓,是农田基本建设的重点,不少地块经过大平大整,地硬土死,养分不足。尤其沙石地、沙板地分布甚广,志丹、甘泉、宜君、子长、延安等县27万余亩川地中,沙板地约有4.7万亩,占川地面积17.4%。未改良的沙板地,保水保肥力差,仅能种植耐旱作物谷子、高粱,产量也很低。延安市高峁湾生产大队600余亩川水地,其中未改造的瘠薄沙板地约有100亩。亩施肥四、五千斤,春谷仅200斤左右,高粱500斤左右,为一般川水地产量的50～80%。因此,在进行客土,淤灌改土的同时,如何进一步提高沙板田 Chuan Shui is my granary, is the focus of farmland infrastructure, many large flat after the whole block, hard to die, lack of nutrients. In particular, gravel, sand plate is widely distributed, Zhidan, Oasis, Yijun, Zi Chang, Yan’an County, more than 27 acres of Sichuan, the sand plate about 4.7 million mu, accounting for 17.4% of the area of ​​Sichuan. Unmodified sand plate, poor water and fertilizer, can only grow drought-resistant crops millet, sorghum, the yield is also very low. Yan’an Gaoyewan Bay production brigade more than 600 acres of water, of which the barren plate has not been transformed about 100 acres. Acres four or five pounds, only about 200 pounds Spring Valley, about 500 pounds of sorghum, 50% of the general output of Sichuan water 80%. Therefore, in the guest land, irrigation and soil improvement at the same time, how to further enhance the sand plate field