碱性土

对于地质条件相近的土壤，由于本身的pH值不同，铝的溶出量差别很大，一般而言，酸性土铝的溶出量高于碱性土。

The amount of aluminum leaching for acidic soil is much larger than that for alkaline soil .

冬枣对土壤的要求不严，除沼泽地和重碱性土（ph9）外均可栽培，对地下水位的高低也无严格要求，同时也是很好的经济作物。

Zizyphus jujuba var. inermis strict requirements on the soil , with the exception of the swamp and heavy alkaline soil ( ph 9 ) can be cultivated , groundwater level is also no strict requirements and can be use as a good economic crop .

本次调查苗圃土壤都为碱性土，pH值在7.5左右；

Soils in all these 11 nurseries were alkalescent , pH values were around 7.5 ;

其提取率（提取C占有机质C总量%）：酸性土（高山草甸型和湿润森林型土壤）高于以钙质土为主的碱性土。

The extraction ratio , which meant the percentages that extracted C occupied the whole quantities of soil organic carbon , was : acid soils ( soil of Dark felty soils , felty soils and wet forest soils ) alkaline soils which was mainly consisted of calcium soils .

从碱性土样中，分离到产碱性纤维素酶的细菌134株。经摇瓶初筛、复筛后，得到一株芽孢杆菌074，在pH9条件下能产生具有较高活性的纤维素酶。

A cellulolytic alkaline , Bacillus sp. 074 , which can produce relative high alkaline carboxymethyl cellulase ( CMCase ) over pH 9.0 , was isolated from soil .

同时在富含钙质的碱性土中，CaCO3的聚积对全钾也有一定的稀释效应。

At the same time the accumulative CaCO 3 makes " dilution effect " of the mineral potassium in alkaline soils .

而生长于不同酸碱性土壤上的盾叶薯蓣薯蓣皂苷元含量差异很大，最高为中性土，其次为酸性土，最低为碱性土。

There was obvious difference in different PH soil . The content of diosgenin was the highest in neutral soil , higher in acid soil , lowest in alkali soil .

在特定时期，施用硅肥可以提高酸性水稻土Eh，降低弱碱性和碱性水稻土的Eh。而施用葡萄糖具有降低土壤Eh的作用。

The Eh of soil is decreased by application of glucose .

因此，与碱性盐渍土相比，黄顶菊对中性盐渍土具有较强的适应性。

Thus , there were stronger resistance and adaptability of F. bidentis to neutral saline soil compared to alkaline saline soil .