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综合衢县、金华、江山、义乌及安吉五个地点代表性低丘黄筋泥的微生物学分析,浙江省低丘红壤的微生物学特性主要有如下几点: 1.在红壤的一般理化性状中,土壤pH值、有机质及氮素含量随红壤熟化程度的提高而有增加的趋势。 2.红壤中微生物总数随土壤熟化度提高而增大。各级肥力的土壤,均以细菌占最大优势。往往熟化程度愈高,细菌数量所占的比重愈大。反之,不一定是熟化程度较高的土壤。熟化程度低的红壤,真菌的相对数量较高,但在荒地中,真菌的数量也不超过微生物总数的5％。 3.红壤荒地的呼吸强度,在本试验条件下,二氧化碳释放量及氧吸收量均在20微升以下。随着红壤熟化程度的增加,其数值也增大。 4.在培养初期二周内,红壤的硝化作用强度随熟化程度提高而增大。后期差异不一定显著。硝化细菌在荒地中几乎不能繁育,其数量随熟化程度提高而增加。 5.红壤的纤维素分解强度,在试验条件下,荒地中布片失重量最大不超过13％。分解强度及纤维素分解微生物相对数量,随红壤熟化程度提高而增加。纤维素分解微生物种类中,在熟化红壤以细菌占优势,在荒地则以霉菌占优势。在纤维素分解细菌中,熟化度高的红壤,以噬纤维菌属(Cytophaga)及纤维弧菌属(Cellvibrio)占优势。在荒地红壤中,没有发现噬纤维菌属。分解纤维素的霉菌
Based on the microbiological analysis of the representative Hypothalamid Juice in Quxian, Jinhua, Jiangshan, Yiwu and Anji, the microbiological characteristics of the hilly red soil in Zhejiang Province are as follows: 1. In the general physical and chemical properties of red soil Soil pH, organic matter and nitrogen content increased with the maturity of red soil. The total number of microorganisms in red soil increases with the degree of soil ripening. Fertility at all levels of soil, bacteria account for the greatest advantage. Often the higher the degree of maturation, the greater the proportion of bacteria. On the other hand, it is not necessarily the soil with a high degree of ripening. The relatively low maturity of red soil, the relatively high number of fungi, but in the wasteland, the number of fungi does not exceed 5% of the total number of microorganisms. The respiration intensity of the red soil wasteland, in this experimental conditions, the amount of carbon dioxide emissions and oxygen uptake are below 20 microliters. With the increase of maturity of red soil, its value also increases. In the first two weeks of cultivation, the nitrification intensity of red soil increased with the degree of ripening. Late differences are not necessarily significant. Nitrobacteria barely breed in the wasteland, and their numbers increase with the degree of maturation. 5. Red soil cellulose decomposition strength, in the test conditions, the weight loss of wild cloth in the largest no more than 13%. Decomposition intensity and the relative amount of cellulolytic microorganisms increased with the maturation of red soil. Among the cellulolytic microorganisms, bacteria predominate in the red loam soil and mold in the wasteland. Among the cellulolytic bacteria, red ripened soils dominated Cytophaga and Cellvibrio. In the wasteland of red soil, did not find fibroids bacteria. Decomposition of cellulose mold