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保护地重茬两年以上,作物病虫害将逐渐加剧,肥药投入增加,农产品产量和品质下降,收益锐减。目前农民还没有完全掌握有效的防止方法,成为设施农业发展的障碍。生物工程技术为这一问题的解决带来了曙光。农业科技工作者分离出微生物菌种可大大加快作物秸秆还原分解速度,利用生物
Protected crop stubble more than two years, crop pests and diseases will be gradually increased, increased investment in fertilizer, agricultural output and quality decline, revenue plummeted. At present, peasants have not fully mastered the effective prevention methods and have become obstacles to the development of facilities and agriculture. Bioengineering brings a ray of hope to the solution to this problem. Agricultural science and technology workers to separate microbial strains can greatly accelerate the reduction of crop stalks decomposition rate, the use of biological