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紫花苜蓿(Medicago sativa L.)因其产量高、耐刈割、品质好、营养丰富,各类家畜都喜食而被称为“牧草之王”[1-2]。合理施肥是提高苜蓿干草产量和质量的关键技术之一[3],微量元素缺失、过量使用或配施时产生的促进或抑制作用,都会对植物生长发育、生理代谢、生物功能等产生不同程度的影响[4]。合理的喷施浓度和配施比例既能保证叶片对矿物质营养的吸收,又能促进营养在植物体内的运转,从而达到
Alfalfa (Medicago sativa L.) is known as the “king of pastures” due to its high yield, mowing resistance, good quality and nutrient richness, and all kinds of domestic animals are eaten [1-2]. Reasonable fertilization is one of the key technologies to improve the yield and quality of alfalfa hay [3]. Trace elements deficiency, excessive use or the promotion or inhibition caused by the combination will have different effects on plant growth and development, physiological metabolism and biological functions The impact of [4]. Reasonable spray concentration and the proportion of both to ensure that the leaves of mineral nutrients absorption, but also to promote nutrition in the plant body to achieve, so as to achieve