问:胡麻为什么能耐瘠薄?(河北省井陉县陉南大队何进才) 答:胡麻具有比较突出的耐瘠性,其原因:一是由于胡麻长年生活在严寒、风沙、干旱、贫瘠的土壤中,经历了长期的考验和锻炼,所以有突出的耐瘠性。二是胡麻具有发达的根系,根具有较强的吸收养分的能力。早在一九○五年,科学家就以一克根量计算,每昼夜能从土壤中吸收无机盐类二十六点八毫克,比春小麦 Q: Why is flax infertility? (HeJingcai, Taoyuan County, Taonan County, Heilongjiang Province) A: Flax has the most outstanding barrenness. The reasons are as follows: First, because flax lives in the cold, wind and sand, arid and barren soil for many years, Experienced long-term test and exercise, so there are outstanding barrenness. Second, flax has developed root system, root has a strong ability to absorb nutrients. As early as 1905, scientists calculated the amount of inorganic salts (26.8 milligrams) of inorganic salts