Its composition containing: organic humus and nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and iron, copper, zinc, boron, molybdenum and other trace elements.

它的成份含﹕有机腐殖质和氮、磷、钾、钙、镁、硫及铁、铜、锌、硼、钼等多种微量元素。

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Micronutrients. The micronutrients essential to plants include molybdenum, boron, zinc, manganese, iron, copper, and chlorine.

微量营养元素植物所必需的微量元素包括钼、硼、锌、锰、铁，铜和氯。

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The effect of copper on low boron low chromium nickel based brazing alloy was studied by experiments.

本文研究了铜对低硼、低铬镍基钎料工艺性能的影响。

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For example, Turkish mining law is investment-friendly, as there is little bureaucratic control, an easy permitting process, and lower fees, and allows broader activities for companies involved in mining gold, copper and boron.

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