| 释义 |
exchangeable Ca
基本例句
交换性钙
It was suggested that Ca deficiency in plants was caused by the low contents ofexchangeable Caand low pH value in soil.果园土壤交换态钙含量低及土壤酸性强是引起植株钙素缺乏的主要原因。
The total andexchangeable Cain soil and the total Ca in plant increased with the plant succession from arbor trees, herbage-shrubs, shrubs-herbage to sparse shrub-herbage.植物、土壤总钙及土壤交换态钙含量，都随着次生林、草灌、灌草、稀疏灌草的演替有增加的趋势。
Results show that the contents of Ca, Mg and B in leaves of lychee, the N/K ratio in pericarp, and the N/K ratio, contents of organic matter and exchangable Ca in soil influence the cracking rate.初步探明糯米糍荔枝叶片中的钙、镁、硼含量，果皮中的氮钾比，以及土壤中的N/K比、有机质、交换性钙含量影响其裂果率。 |