nutrient deficiency symptom

• 养分含量

nutrient deficiency symptom的用法和样例：

例句

1. A comparative study was conducted to analyze the changes of soil nutrient contents in Eucalyptus forestland and in shrubland after three years of prescribed burning.
   摘要采用对比分析方法，研究了广东鹤山桉林和灌草坡火烧迹地植被恢复后土壤养分含量的变化。