Crop yields are painfully low, but improving production of staples demands emissions-heavy fertilizer and irrigation technologies.

作物产量低得可怜，但若想提高粮食产量，就需要使用排放严重的肥料和灌溉技术。

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Powerguda's crop yields from the dry soil were so low that most of the villagers had taken to migrant work on other farms.

普尔古达的干旱土壤使得农作物收成很差，因此，大多数村民都在别的农场干活。

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In general, crop yields in Latin American countries are low but scientific research has demonstrated that high sustainable yields are possible in tropical and subtropical areas.

拉美国家产量通常很低，但科学研究已证明高产稳产在热带和亚热带地区已有可能。

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The inefficiency of farms meant low crop yields, high prices, limited choice, and uneven quality.

NEWYORKER: Testing, Testing

Farmland yields (not crop yields, financial yields from renting out the land) are at an extreme low.

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Where water is scarce, the development of crop varieties that grow under conditions of low moisture or temporary drought could boost yields and lengthen the time that farmland is productive.

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