Soil microbiological and biochemical properties affected by plant growth and different long-term fertilisation |
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| Institution: | 1. Probiodrug AG, Biocentre, Weinbergweg 22, 06120 Halle/Saale, Germany;2. UFZ Centre for Environmental Research Leipzig-Halle, Department of Soil Sciences, Theodor-Lieser-Str. 4, 06120 Halle/Saale, Germany;1. College of Resources and Environment, Southwest University, Beibei, Chongqing 400716, China;2. Chongqing Tobacco Science Institute, Beibei, Chongqing 400716, China;3. Chongqing Agricultural Technology Extension Station, Chongqing 400121, China;4. College of Computer and Information Science, Southwest University, Beibei, Chongqing 400716, China;1. National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China;2. Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, China;3. College of Resources and Environment, Southwest University, Beibei, Chongqing 400715, China;4. School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia;5. State Key Laboratory of Soil Erosion and Dryland Farming, Northwest A & F University, Yangling, 712100 Shaanxi, China;6. Institute of Plant Nutrition, Resources and Environment, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China;1. Division of Soil Science, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar 190025 (India);2. Division of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar 190025 (India);3. Section of Plant Physiology, Division of Post-Harvest Technology (PHT), Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar 190025 (India);4. Division of Entomology, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar 190025 (India);1. Agricultural and Ecological Research Unit, Indian Statistical Institute, Giridih, Jharkhand, 815301, India;2. Department of Soil Science & Agricultural Chemistry, Birsa Agricultural University, Ranchi, Jharkhand, India;3. Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, 700108, West Bengal, India;4. Department of Environmental Science, Tezpur University, Tezpur, Assam, 784028, India |
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| Abstract: | The purpose of this study was to measure the effects of plant growth on soil microbial biomass C (Cmic) and soil enzyme activities. In a pot experiment using spring barley and sugar beet, we investigated the response of Cmic, hot water extractable C and N fractions (Chwe, Nhwe), and enzyme activities involved in C, N and P cycling in a loess-derived Chernozem from Bad Lauchstädt (Central Germany). The study site has been receiving the same fertilisation treatments for 100 years. The soil originated from plots fertilised with 15 t ha?1 farmyard manure (FYM) year?1 + mineral fertiliser (NPK), or 15 t ha?1 FYM year?1, or NPK or from an unfertilised control. Pots were sampled monthly, and alkaline phosphatase- (AP), β-glucosidase- and protease-activities were analysed. At the beginning and the end of study, levels of Cmic, Chwe and Nhwe were also measured. All three enzyme activities and Cmic were significantly and positively correlated with Corg and Chwe. Results suggest that the enzyme activities measured originated mostly from microorganisms and that Chwe is an important C source for soil microorganisms. β-Glucosidase and AP activities were higher in summer months than at other times. In contrast, protease activity changed only slightly during the growing period. |
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