1) soil pH value
土壤pH值
1.
The influence of plant N/P,soil pH value on wetland plant species richness;
植物N/P与土壤pH值对湿地植物物种丰富度的影响
2.
Spatial distribution and conditional simulation of soil pH values in small watershed of loessial gully region
黄土沟壑区小流域土壤pH值的空间分布及条件模拟
3.
The present paper deals with the relationship between the Al content in tea leaves and each of tea age and soil pH value.
探讨茶叶铝含量与叶龄及土壤pH值的关系。
2) Soil PH
土壤pH值
1.
Influence of Applying Calcium Cyanamide on the Soil pH,EC Value and Growth of Cucumber Seedlings;
施用氰氨化钙对土壤pH值·EC值及黄瓜生长的影响
2.
Effect of Soil pH Value on the Fruit Characters of Pyrus pyrifolia Nakai. cv. Whangkeumbae
土壤pH值对黄金梨果实品质的影响
3.
We measured soil pH,soil electrical conductance and germination parameters of cabbage seeds as screening means to screen out the proper krilium and their proportioning for effectively ameliorating alkaline soil.
2;种子发芽率,发芽势和发芽指数与土壤pH值有密切关系(p<0。
3) pH value
土壤pH值
1.
Comparative studies on the pH value, organic matter, total N, exchangeable Ca and Mg, available K, P, B, Mo, Cu, Fe, Zn, Mn in the 0~20 cm soil layer among the 3 forests, Pinus massoniana forest(PMF), pine and broadleaf mixed forest(PBMF), and monsoon evergreen broadleaf forest(MEBF) which consists of a succession series in Dinghushan, south China show that the pH value in PMF soil(4.
比较研究了南亚热带鼎湖山森林群落演替序列中马尾松林、针阔混交林和季风常绿阔叶林表层(0～20cm)土壤pH值、有机质、全N、速效K、交换性Ca和Mg、有效P、B、Mo、Cu、Fe、Zn和易还原Mn等营养元素的含量及其相关关系,结果表明:马尾松林土壤pH值显著高于其它两森林土壤;随着群落的进展演替,养分在土壤中的累积(Ca除外)呈不断增加的趋势,即马尾松林<针阔叶混交林<季风常绿阔叶林;不同指标的累积呈现出持续增加(有机质、交换性Mg、有效B、Mo、Cu、Fe和易还原Mn)、持续递减(交换性Ca)、先增加再减少(有效P)和先减少再增加(pH值、总N和有效Zn)的4种变化形式;土壤养分元素的相关对对数以马尾松林最多。
4) variation of pH value of soil
土壤pH值变化
5) soil pH
土壤pH
1.
A study of the effect of soil pH on chemical species of cadmium by simulated experiments.;
土壤pH对镉存在形态影响的模拟实验研究
2.
Content of available phosphorus in soil determined by Olsen method and its correlation with soil pH;
Olsen法测定的土壤速效磷含量与土壤pH值的相关性研究
3.
Spatio-temporal variation and associated affecting factors of soil pH in the past 20 years of Jiangsu Province,China;
近20年来江苏省土壤pH值时空变化及其驱动力
6) tobacco-planting soil pH
植烟土壤pH
1.
To explore the effect of humus fertilizer on alkaline tobacco-planting soil pH,tobacco yield and quality,the application rate of humus acid compound fertilizer were divided into four experimental treatments(0、150、300、600 kg/hm2) in 2005.
为探索施用腐殖酸类肥料对碱性植烟土壤pH及烤烟产质量影响,2005年在河南许昌烟区进行了腐植酸复合肥施用量(0、150、300、600kg/hm2)的4个不同施用量的肥料田间试验,试验结果表明:施用腐殖酸类肥料可降低土壤的pH值,施用量愈大,降低幅度愈大,同时土壤的有机质、速效氮、速效磷、速效钾升高,土壤容重下降;施用腐殖酸复合肥不影响烟株前期发育,但会推迟成熟期,施用300～600kg/hm2腐殖酸复合肥烟株农艺性状较好,烟叶的经济性状较好;施用适量300kg/hm2腐殖酸复合肥烟叶主要化学成分较协调、评吸质量较好。
补充资料：pH值
分子式：
CAS号：
性质：H30+浓度的负对数称为pH值。即pH=-1g[H3O+]。如[H3O+]=1.0×10-7mol/dm3，pH=7.00。水溶液的pH的范围在0～14之间，pH为1～7呈酸性，pH为7～14呈碱性。pH=7呈中性。
CAS号：
性质：H30+浓度的负对数称为pH值。即pH=-1g[H3O+]。如[H3O+]=1.0×10-7mol/dm3，pH=7.00。水溶液的pH的范围在0～14之间，pH为1～7呈酸性，pH为7～14呈碱性。pH=7呈中性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条