Both nitrogen and sulphur emissions are major contributors to soil acidity and environmental pollution.

氮和硫的排放物是造成土壤酸度和环境污染的两大主要来源。

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Vegetation uptake of nitrogen and base cation, as well as acid deposition, is an important source of soil acidity.

植被对氮和盐基阳离子的吸收是除酸沉降外另一个重要的土壤酸度来源。

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There was not significant correlation between soil acidity and various forms of inorganic phosphorus in non-rhizosphere soil, respectively.

非根际土壤酸度与非根际土壤无机磷形态的相关性不明显。

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Beets need the acidity level in the soil to be six to seven and a half.

VOA: special.2010.03.02

First, it poured industrial quantities of lime (pulverised limestone or chalk) onto the soil to reduce levels of acidity.

ECONOMIST: Brazilian agriculture