中国科学家研制出一种智能农药，一旦进入土壤，可控可循环， 根据新华网的一篇文章.
中国科学院合肥物质科学研究院技术生物研究所教授吴正彦带领的团队使用硅藻土、氧化铁镁和壳聚糖制造了一种化合物，该化合物可以通过土壤中pH值的变化来激活.
“The release of the pesticide mixed with the additive can be easily adjusted by pH changes. The additive wraps up the drug and acts like a gatekeeper. It opens the gate and dissolves in acidic conditions,” Wu said.
He said the research showed that a single-season crop only needed the pesticide spray once. During the growth of the plant, growers simply spray a weak-acid agent to activate and control the pesticide’s effect. Conventional farming needs several rounds of pesticide spray.
该研究报告发表在最新一期的国际研究期刊《化学工程杂志》上。