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问:胡麻为什么比其他作物耐旱?(河北省张北县曹碾沟村牛仲财) 答:现代栽培的一年生胡麻,是从多年生野生胡麻演变而来的。由于胡麻的祖先长年立足于高原丘陵干旱气候中,经历了漫长的考验和锻炼,迄今仍保留着这种“野性”,所以胡麻适应干旱气候变化,它对干旱环境条件忍受能力、抗灾能力,是其他作物所不及的。胡麻的耐旱性是由它本身生物学特性所决定的。胡麻属于直根系,主根入土深度可达1.2米以下,能够吸收较深层的水分。根深就耐旱,根
Q: Why is flax more drought-resistant than other crops? (Zhongniu Caozuli Village, Zhangbei County, Hebei Province) Answer: The annual flax, cultivated in modern times, has evolved from perennial wild flax. Because flaxen ancestors for many years based on plateau hilly arid climate, has gone through a long test and exercise, so far still retains this “wild”, so flax adapt to arid climate change, its tolerance to drought environmental conditions, resilience, It is beyond the reach of other crops. Flax drought resistance is determined by its own biological characteristics. Flax belongs to the straight root system, the main root depth of up to 1.2 meters, to absorb deeper water. Deep root drought, root