德州农校建校于德州市东北角多年弃耕坟地上,是有名的盐碱涝洼,其盐碱含量高达1.4 %,有机质含量0.3%。春天地下水位1.2米,树木生长困难. 就这样的盐碱地; 1976年春栽果树500株,活了1株,77年春栽苹果、梨、桃750株,活了30株,78年春栽苹果、梨80株,活了1株.在总结经验找出教训的 Dezhou Agricultural School to build school in the northeast corner of Dezhou for many years abandoned cemetery, is well-known saline-water depression, the salinity of up to 1.4%, organic matter content of 0.3%. In spring, the groundwater level is 1.2 meters and the growth of trees is difficult. On this kind of saline-alkali soil, 500 trees were planted in spring in 1976 and 1 tree was live. In the spring of 1977, 750 plants of pear, peach, 750 pear and peach were planted and 30 plants were planted. Strain, alive 1. In the lessons learned to find out the lesson