Genotypic differences of potassium (k) efficiency among 86 cotton cultivars were investigated under water culture at seeding stage, 28 typical cultivars were picked out for a series study.
营养液培养条件下对86个棉花基因型苗期进行钾效率筛选，并对其中的28个进行了系统的研究。
2
They also contain nutrients-vitamin K, vitamin c, potassium, magnesium and boron-that are important for healthy bones.
它们还含有营养素——维生素k、维生素c、钾、镁和硼——对骨骼健康很重要。
3
Avocado is considered the world's healthiest fruit, because of its nutrient contents such as vitamin K, dietary fiber, potassium, folic acid, vitamin B6, vitamin C and copper.