改土根据土壤质地不同,采用客土式改园方式改良土壤。对过于黏重的土壤,适当掺入沙土、河泥等进行改良;对于保水、保肥性差的沙性土壤,则应掺入适量黏土进行改良。提高土壤有机质含量大量施入腐熟的有机肥,并辅施化肥。每667米2施有机肥5000～1万千克,均匀撒施后翻耕,使之与土壤 Soil improvement According to the different soil texture, the use of soil to change the way to improve soil. The soil is too sticky, the appropriate incorporation of sand, river mud and other improvements; for water retention, fertilizer poor sandy soil, you should incorporate appropriate amount of clay for improvement. Increase soil organic matter content applied to a large number of matured organic fertilizer, supplemented by chemical fertilizers. Each 667 m 2 organic fertilizer 5000 to 1 million kilograms, after spreading evenly tillage, so that with the soil