Influence of natural compound mould inhibitor on the fungi group in alfalfa hay bale

In order to explore the best way of storing alfalfa hay, the influence of natural compound mould inhibitor including dried tangerine peel, calcium oxide (CaO) and zeolite powder on Medicago varia cv. Caoyuan No. 2 was studied. The results showed that adding natural compound mould inhibitor NA to alfalfa hay bale has the obvious inhibition effect to the advantage fungi group, and the number of strains is declined, especially Alternaria, during Storage period. After storing ten days, the numbers of all strains reached the highest，and Alternaria is the most advantage fungi group. The next are Aspergillus, Fusarium, Penicillium, Trichoderma.