Whole-plant corn silages on family farms were sampled in Erdos (S1), Baotou (S2), Ulanqab (S3), and Hohhot (S4) in North China, after 300 d of ensiling. The microbial communities, metabolites, and aerobic stability were assessed. Lactobacillusbuchneri, Acinetobacter johnsonii, and unclassified Novosphingobium were present at greater abundances than others in S2 with greater bacterial diversity and metabolites. Lactobacillus buchneri, Lactobacillus parafarraginis, Lactobacillus kefiri, and unclassified Lactobacillus accounted for 84.5%, and 88.2%, and 98.3% of bacteria in S1, S3, and S4, respectively. The aerobic stability and fungal diversity were greater in S1 and S4 with greater abundances of unclassified Kazachstania, Kazachstania bulderi, Candida xylopsoci, unclassified Cladosporium, Rhizopus microspores, and Candida glabrata than other fungi. The abundances of unclassified Kazachstania in S2 and K. bulderi in S3 were 96.2% and 93.6%, respectively. The main bacterial species in S2 were L. buchneri, A. johnsonii, and unclassified Novosphingobium; Lactobacillus sp. dominated bacterial communities in S1, S3, and S4. The main fungal species in S1 and S4 were unclassified Kazachstania, K. bulderi, C. xylopsoci, unclassified Cladosporium, R. microspores, and C. glabrata; Kazachstania sp. dominated fungal communities in S2 and S3. The high bacterial diversity aided the accumulation of metabolites, and the broad fungal diversity improved the aerobic stability.

中文翻译：

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华北荒漠草原家庭农场收集的全植物玉米青贮饲料的微生物群落，代谢产物，发酵质量和有氧稳定性

封土300天后，在华北的鄂尔多斯（S1），包头（S2），乌兰察布（S3）和呼和浩特（S4）对家庭农场的全株玉米青贮饲料进行了采样。评估了微生物群落，代谢产物和有氧稳定性。在S2中，布氏乳杆菌，约翰逊不动杆菌和未分类的新孢子菌比其他细菌具有更高的丰度，并具有更大的细菌多样性和代谢产物。布氏乳杆菌，乳杆菌parafarraginis，乳杆菌kefiri和非保密乳杆菌分别占S1，S3和S4中细菌的84.5％，88.2％和98.3％。S1和S4的有氧稳定性和真菌多样性更高，与其他真菌相比，未分类的哈萨克斯坦病，臭病杆菌，假丝酵母，不定枝孢子菌，小根霉和光滑念珠菌的丰度更高。非保密的丰度Kazachstania在S2和K. bulderi在S3分别为96.2％和93.6％。S2中的主要细菌种类为布氏乳杆菌，约翰逊曲霉和未分类的新孢子菌;乳杆菌属。S1，S3和S4中占主导地位的细菌群落。在S1和S4的主要真菌种类是未分类的哈萨克斯坦，K. bulderi，C. xylopsoci，未分类的角孢属，小孢子孢子和光滑的C. glabrata ; 哈萨克斯坦菌 S2和S3中占主导地位的真菌群落。高度的细菌多样性有助于代谢产物的积累，而广泛的真菌多样性则改善了有氧稳定性。