微量元素肥料对紫花苜蓿草产量的影响

Effects of Boron, Molybdenum and Zinc Fertilizer Application on the Yield of Alfalfa

采用完全试验设计研究硼、钼、锌对紫花苜蓿草产量和植株高度的影响。结果表明,微量元素硼、钼、锌单独施用可以显著提高苜蓿干草产量和植株高度,其配合施用存在互作,其中钼和硼为正互作,可以显著提高苜蓿干草产量和植株高度；苜蓿植株高度和干草产量存在显著的正相关(r=0.8792),即苜蓿干草产量的提高可以通过植株高度的增加来实现。

The study on the effects of Boron （B）, Molybdenum （Mo） and Zinc （Zn） on Yield and Height of Alfalfa was done using a completed experimental design. The results were shown that the dry matter （DM） yields and heights of alfalfa increased significantly （P〈0.05） with the application of B, Mo and Zn fertilizer, furthermore, there are a interaction among of the B, Mo and Zn fertilizer, and the inter action between Mo and B was positive for the DM yields and heights of alfalfa. At the same time, there were a significantly （P〈0.05） positive correlation （r=0. 879 2） between the heights and DM yields of alfalfa.