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1·Copper is a nutrient element for crops growth.

铜是农作物生长发育所必须的营养元素。

2·Magnesium is the nutrient element in plant growth.

镁是植物生长的营养要素。

3·Nutrient element content is different in organs, but it is highest in leaf.

地上各器官营养元素含量因器官、元素而异，但尤以叶的含量最高。

4·Phosphorus was the nutrient element limiting the eutrophication of the lake.

磷是湖泊富营养化的限制性营养元素。

5·The nutrient element content, uptake and cycling of each Paulownia organ are studied in the paper.

文章对泡桐各器官营养元素含量及其吸收循环规律进行了研究。

6·Root of advanced plant not only absorbs nutrient element but also synthesizes some biochemical active material.

高等植物的根系不仅起着吸收营养元素的功能，也是一些生化活性物质的合成部位。

7·In order to control frequent element deficiency diseases, effects of spraying nutrient elements on Pistacia veraL.

为防治大棚育苗期间阿月浑子常见的各种缺素症，进行了营养元素喷施试验。

8·Cadmium is one of the most toxic heavy metals and is not an essential nutrient element for plant, animal and human being.

镉是动物和植物的非必需元素，也是毒性最大的重金属之一。

9·Zinc is an essential nutrient element for biological organisms, but it is toxic to plant, animal and human at excess levels.

锌是生物必需微量元素，但过多时对动植物都有毒害。

10·The cortex of bark was consist of 9-12 layer nutrient element parenchyma so its mechanical capability have influence on the resistance to the disease.

山核桃树皮的皮层均由9 - 12层富含营养物质的薄壁细胞组成，其机械性能在一定程度上影响着树皮对溃疡病抗性。