Major nutrient factors and nutrient state were correlated. This study provides a theoretical basis for the development of subside pool.
对主要营养指标及营养状况进行了相关分析，为塌陷塘的开发利用提供了一定的理论基础。
Generally, the available state of the major nutrient elements is larger than their critical value for plant with potential nutrient deficiency.
主要微量营养元素的有效态多大于其缺素临界值，但存在潜在缺素的可能性。
Potassium is a major nutrient in higher plants, which together with nitrogen and phosphorus is known as the "three essential factors" of plant nutrition.
钾是植物生长发育所必需的大量元素，是与氮、磷并列的植物营养的“三大要素”之一。
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