不同微素配施对紫花苜蓿产量和品质的影响

Effect of Different Formula of Microelement Fertilizer on Yield and Quality of Alfalfa

采用叶面喷施的方法,研究了不同微素配施对紫花苜蓿草产量和营养品质的影响。结果表明:喷施微肥可以促进苜蓿生长,提高苜蓿草产量,以低钴低硒处理效果最好;能够提高苜蓿粗蛋白含量与产量,以高钴高硒处理效果最好;可以提高粗纤维、粗脂肪、粗灰分、磷、钙含量与产量,均以低钴高硒处理效果最显著;可以提高苜蓿无氮浸出物含量与产量,以低钴低硒处理效果最好。

Effects of different formula of microelement fertilizer on yield and nutritional quality of alfalfa were studied by method of leaf surface spraying. The results indicated that spraying of microelement fertilizer could promote growth and increase grass yield of alfalfa, and the effect of C1D1 treatment was best. Content and yield of crude protein of alfalfa were improved by application of microelement fertilizer, and the effect of C2D2 treatment was best. Moreover, application of microelement fertilizer also could increase content and yield of crude fiber, crude fat, thick ash, P and Ca, and the effect of C1D2 treatment was clearest. Content and yield of nitrogen free extract were improved by application of microelement fertilizer, and the effect of C1D1 treatment was best.