Farmers in the Amazon basin have long used "the dark earth of the Indians" as fertiliser.

亚马逊盆地的农民长期使用“印第安黑土”作为肥料。

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But as China struggles to meet its food sufficiency targets, and as fertiliser markets tighten, that is changing.

但随着中国力争实现其粮食自给目标，以及化肥市场吃紧，这种情况正在改变。

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At the same time, some in the fishing industry have realised that selling anchoveta as food for people, rather than as fertiliser or animal feed, is more profitable.

同时，渔业有些公司已经明白将鳀鱼卖给人们当成食品，比当成肥料或动物饲料出售更有利润。

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Higher energy prices have also made a difference as fertiliser and other input costs have risen.

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The pigeon houses riddling the rock faces, traditionally used to collect the birds' droppings for use as fertiliser, mostly stand empty.

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Actually cow dung is more useful, because it can be used as fertiliser.

ECONOMIST: Cambodia