大约60%的英国农田只适合生长青草，它不能提供被人直接食用的农作物。
Around 60% of UK farmland is only suitable for growing grass; it would not support a crop directly consumable by humans.
在20世纪七八十年代，沙特阿拉伯大约20%的石油收入用在了小麦等作物的灌溉上，这一地区本不适合这些农作物的生长。
Nearly 20% of all Saudi oil money in the 1970s and 80s was used to provide clean water to grow wheat and other crops in regions that would not naturally be able to do so.
结果表明，粉状堆肥经颗粒化处理后，养分释放速度变缓，适合在生长期较长的农作物上施用。
The results showed that pelletization of normal compost could decrease nutrient release rate to some extent. Hence, the compost pellet was suited with crops for long growth period.
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