天然组合型防霉剂对苜蓿草捆贮藏期内真菌种群变化的影响

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

为了探索苜蓿高水分草捆贮藏的最适方式,以草原2号苜蓿(Medicago varia cv.caoyuan No.2)为研究材料,并以陈皮、氧化钙(CaO)、沸石粉为原料配制了天然组合型防霉剂(NA),对天然组合型防霉剂在苜蓿干草贮藏期内防霉效果进行了研究。结果表明,使用天然组合型防霉剂对草捆进行防霉处理,各菌株数量均有所下降,特别对曲霉属抑制效果显著;贮藏10d时,各菌属菌株数量最多,其中链格孢属为最主要优势菌属,其次是曲霉属、镰刀菌属、青霉属和木霉属。

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, Fusariurn, Penicillium , Trichoderma.