徐州地区是江苏省重点旱改水地区,在毛主席革命路线指引下,在农业学大寨运动推动下,近年来全区水稻面积迅速发展。1975年全区334万亩水稻获得丰收,平均亩产433斤,比1974年增产12.2%,总产比1974年增产18%。旱改水虽能充分调动土壤的潜在肥 Under the guidance of Chairman Mao’s revolutionary line, driven by the Dazhai Movement in Agriculture, the area of ​​rice in the region has been rapidly developing in recent years. In 1975, the harvest of 3.34 million mu of rice in the region was blessed, with an average yield of 433 kg per mu, an increase of 12.2% over 1974 and a total increase of 18% over 1974. Although drought can change the water to fully mobilize the potential of soil fertility