硼、锰、钼对紫花苜蓿草产量和品质的影响

Effect of B,Mn and Mo application on grass yield and quality of alfalfa

采用叶面喷施的方法,研究了硼、锰、钼单施或配施对紫花苜蓿草产量和营养品质的影响.结果表明,硼、锰、钼无论单施还是配施均可提高苜蓿干草产量,以单施钼产量提高最大;单施锰可显著提高苜蓿粗蛋质白含量;硼锰钼配施可以显著提高苜蓿粗灰分、粗脂肪含量,同时可提高粗纤维含量;施钼或锰可显著降低无氮浸出物含量,以硼钼配施降低最多;施用不同微肥显著影响苜蓿磷含量;单施硼可显著提高苜蓿钙含量.不同微肥处理可显著提高草产量,同时提高了营养成分收获量.

The effect of different microelements application of boron, manganese, and molybdenum on grass yield and quality of alfalfa were studied by the way of foliar application. The result indicated that, either single application or combined application of B, Mn and Mo could improve the yield of alfalfa. Among all the treatments, single application of Mo has remarkable effect compared to CK. Applying Mn fertilizer could remarkably increase the crude protein content. Combined application of B, Mn and Mo could remarkably increase the crude ash, the crude fat content of alfalfa, and also increase the crude fiber content. Application of Mo or Mn could remarkably reduce nitrogen free extract content of alfalfa, and the effect of B and Mo combined application was the most remarkable. Applying micronutrient fertilizers could change alfalfa phosphorus content. Single application of B could remarkably increase the calcium content of alfalfa. Single application of Mo could maximize alfalfa crude protein, crude ash, crude fiber production, calcium production was improved by single application of B. All the treatments can improve the grass yield and that improve the nutritions production.