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How much N (in grams) must be in the soil organic matter if the microbes are to maintain their C:N ratio? 3gN O O Unknown, because the N requirements of the microbes were not measured. 6gN 10 gN

How much N (in grams) must be in the soil organic matter if the microbes are to maintain their C:N ratio? 3gN O O Unknown, because the N requirements of the microbes were not measured. 6gN 10 gN

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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How much N (in grams) must be in the soil organic matter if the microbes are to maintain their C:N ratio? 3gN O O O O Unknown, because the N requirements of the microbes were not measured. 6 gN 10 gN
Transcribed Image Text:How much N (in grams) must be in the soil organic matter if the microbes are to maintain their C:N ratio? 3gN O O O O Unknown, because the N requirements of the microbes were not measured. 6 gN 10 gN
Critical C:N You are interested in assessing the potential for N mineralization and/or immobilization in chaparral soil. To do this you measure the respiration rate of the microbial population to quantify their growth efficiency, the microbial C:N ratio, and the soil C:N ratio. The results are listed in the table below. Component Microbial growth efficiency (g microbial C/g soil C) Microbial C:N (gC/gN) Soil C:N (gC/gN) 0.6 10 30 Value Assuming that the microbes break down (decompose) 100 g of C in the soil organic matter, answer the following questions
Transcribed Image Text:Critical C:N You are interested in assessing the potential for N mineralization and/or immobilization in chaparral soil. To do this you measure the respiration rate of the microbial population to quantify their growth efficiency, the microbial C:N ratio, and the soil C:N ratio. The results are listed in the table below. Component Microbial growth efficiency (g microbial C/g soil C) Microbial C:N (gC/gN) Soil C:N (gC/gN) 0.6 10 30 Value Assuming that the microbes break down (decompose) 100 g of C in the soil organic matter, answer the following questions
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