这种肥料价格只有普通肥料的1/4.

The fertilizer costs around a quarter of the normal price.

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施用改性膨润土载体玉水专用复混肥比等养分量普通肥料利用率提高15.5%。

So the utilization ratio of the corn's special complex and mixed fertilizer treating modified-bentonite as carrier is raised 15.5% than the equal nutrient general fertilizer.

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他用正在喀麦隆进行一项实验来证明他的观点：一些玉米栽种在普通的土壤中，另一些则加入生物炭与并与不同种类的肥料结合。

He's been conducting an experiment in Cameroon to prove his point: some corn grown in ordinary soil, some in soil with biochar and different combinations of fertiliser.

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