发明名称 |
Method for determination of the gross nitrogen-mineralization rate of a soil sample |
摘要 |
The invention facilitates a determination of the rate at which soil organic nitrogen is converted to inorganic nitrogen or mineral nitrogen. This conversion is known as N-mineralization. The total release of plant available nitrogen in a soil, i.e., the gross N-mineralization rate quantifies the conversion in the soil of organic nitrogen to inorganic nitrogen. The present invention provides a quick and reliable method for measuring the gross N-mineralization rate of a soil sample. The method exploits that a microbial enzyme activity of a functional ornithine acid cycle present in said sample is correlatale with the rate or gross N-mineralization of that same sample. The method of the invention can be used e.g. in a determination of the amount of a nitrogen-containing fertilizer to be applied to a soil such as e.g. a field of agricultural crops.
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申请公布号 |
US6699709(B1) |
申请公布日期 |
2004.03.02 |
申请号 |
US20000581319 |
申请日期 |
2000.08.21 |
申请人 |
BONDE TORBEN A.;MILLER MORTEN |
发明人 |
BONDE TORBEN A.;MILLER MORTEN;SOERENSEN JAN |
分类号 |
C12Q1/34;(IPC1-7):B09B3/00 |
主分类号 |
C12Q1/34 |
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地址 |
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