碱性土壤

苜蓿喜中性或微碱性土壤，pH值6～8为宜，所以在我国北方地区种植广泛。

Alfalfa grows well in neuter or a little alkaline soil in northern China and the optimal pH range is 6 to 8 .

硝化抑制剂在碱性土壤中对Brij30和LAS降解的抑制作用减弱。

In the alkaline soil , the inhibition effect of nitrification inhibitor to the degradation of Brij-30 and LAS decreased without exception .

在贫瘠的碱性土壤里庄稼长得不壮。

The soil , poor and alkaline , produced feeble crops .

B元素在碱性土壤中的累积是影响试验用污水长期灌溉应用的关键因素。

Boron accumulation in sodic soil is the key factor for irrigation application of studied effluent water .

碱性土壤基因组DNA的分离纯化和基因文库的构建

Extraction and purification of DNA from alkalescence environmental samples and construction of mixed genomic DNA libraries

柴达木盆地弃耕地土壤pH值一般都在8左右，属于碱性土壤。土壤含盐量较高，其全盐量随着土层深度的增大而减少。

Deserted farmlands in the Qaidam Basin are mostly of alkali soil with pH value around 8 , high in salt content .

在中性至碱性土壤环境中，土壤动物密度与土壤ph值是反相关；

From the neutral to the alkaline . the density of soil . Animal has a negative interrelation to pH value of soil .

试验研究了3种酸性土壤和3种碱性土壤施入尿素后，对土壤pH值变化、氨挥发特性、氮素转化及Al元素活性的影响。

Changes of pH , volatilization of ammonia ( NH_3 ) volatility , transformation of urea-N and activity of Al in 3 acidic and 3 alkali soils as induced by urea were studied .

直接从广西南宁市凤凰纸业排污沟碱性土壤样品中抽提和分离纯化混合基因组DNA，所获得DNA的产量为每克土壤样品10～30μg。

The mixed genomic DNA were extracted and purified from alkalescence environmental samples directly in this study . The DNA yields that have been got ranged 10 to 30 μ g per gram of dry environmental sample .

l石灰性土-含有大量碳酸镁和钙质的碱性土壤。

Calcareous soil-Alkaline soil with high levels of calcium and Magnesium carbonate .

将采集自各地的朽木和碱性土壤进行菌种筛选，从中得到一株丝状真菌FG-2。

A filamentous fungi FG-2 was screened and isolated from deadwood and alkaline soil .

通过土柱淋洗试验的方法，研究了脱硫副产物在改良碱性土壤过程中对碱性土壤化学指标（代换性钠、ESP、SAR、pH值）的影响。

The soil column leaching method was adopted to study effects of application of desulphurisation products on chemical indices ( exchangeable Na ~ ( + ), ESP , SAR and pH ) of alkaline soil when they were used as amendment to ameliorate sodic soil .

本试验通过模拟酸雨对北方偏碱性土壤种植蔬菜中叶绿素、可溶性糖，IAA等的影响，说明北方也存在酸雨的危害。

In this paper it is shown by the influence of imitative acidic rain on the chlorophyll , soluble saccharide , IAA and so on in the vegetables planted in the north basic soil that there is the harm of acidic rain also in the north .

从碱性土壤中分离得到一株高产碱性果胶酶的菌株S-2，对该菌株进行形态特征和生理生化鉴定，确定其为革兰氏阳性，杆菌，有芽孢；

Strain S-2 with a high yield of alkaline pectinase was isolated from alkaline soil . The strain grew as a non-pigmented color and was further characterized to be Gram positive , endospore-foming , rod-shaped .

镉污染的碱性土壤可种植蔬菜品种的选择

Selection of Plantable Vegetable Species on the Alkaline Cadmium - Polluted Soil

矮的硬的多枝条多刺的灌木，通常分布在美洲西部的碱性土壤中。

Low hardy much-branched spiny shrub common in alkaline soils of western America .

他们是宽容的酸性或碱性土壤。

They are tolerant of acid or alkaline soil .

这种植物在酸性土壤中也能生存，但碱性土壤更加适宜。

This plant prefers alkaline soil , though it will readily tolerate some acidity .

湿解最终产物呈弱酸性，可以用来改良碱性土壤。

The final products were acidity , which can be used to improve alkali soil .

在碱性土壤中给出了最好的颜色，我在芝加哥这里添加石灰。

Gives the best color in alkaline soil ; I add lime here in Chicago .

任何一种属于滨藜属的灌木，在干的碱性土壤中茂密的生长。

Any of various shrubby plants of the genus Atriplex that thrive in dry alkaline soil .

沙滩的红色是源于一种种植在含盐性和碱性土壤上的草。

The beach 's red color comes from a kind of grass that grows in saline and alkaline soils .

缺铁胁迫经常发生在碱性土壤中，严重影响了作物的产量和品质。

Iron deficiency stress often occurs in alkaline soils , which leads to decreased crop yield and deteriorated crop quality .

在熔岩形成的山脉和山脊间，狭窄山谷内的碱性土壤上零星散布著草丛和灌木。

Mountains and ridges of rough lava are furrowed with narrow valleys of alkaline soil sheltering a few grasses and shrubs .

因此，栽培管理中，偏酸性土壤应注意后期管理，防止烟株提早落黄，偏碱性土壤应防止贪青晚熟。

So in the cultivation management , pay attention to later stage management in acidic soil preventing tobaccos from ripening in advance and still pay attention to promoting complete mature in alkaline soil .

0.5%的石膏施用量可增大碱性土壤的稳定水力传导度37%左右。

Gypsum application at a rate of 0.5 % decreased pH and SAR of soil solution , and increased steady hydraulic conductivity by 37 % comparing with that without gypsum application for the sodic soil .

植物缺铁减产减质是碱性土壤中的一个严重问题，涉及粮食安全和人类健康。

It is a severe problem in alkaline soil that iron deficiency leads to the receded quality and the reduced production of plant . It is related to health of human being and the safety of the food in the world .

我国对旱稻矿质营养及施肥研究仍未引起重视，尤其对国内培育的新品种矿质营养的研究和当前旱稻的主栽区北方碱性土壤中旱稻对氮、磷、钾吸收利用的研究更为薄弱。

The research on the nutrient uptake and fertilization of upland rice has not been paid attention in China , especially on new varieties cropped in the North with alkali soils which is the largest and most potential area of upland rice in the country .

结果表明，广州公园绿地土壤以酸性（pH4.5~5.5）和中性（pH6.5~7.5）占的比例高，部分土壤呈碱性，土壤pH值较自然土壤有增高的趋势；

The results indicated that the soil pH value was dominated by acid ( pH4.5 ~ 5.5 ) and neutrality ( pH6.5 ~ 7.5 ), and had increase tendency as compared with natural soils ;

结果表明，豫北地区果园土壤pH值范围在7.31~8.23，平均为7.77，其值偏碱性；土壤中有效硼含量在0.270~0.463mg/kg，平均为0.390mg/kg，属潜在性缺硼土壤。

The result showed that the average boron content in the orchard soil was 0.390mg / kg , ranging from 0.270mg/kg to 0.463mg/kg and the average pH was 7.77 , ranging from 7.31 to 8.23.There were significant relationship between pH and available boron content .