QUANTIFICATION OF EFFECT OF TEMPERATURE AND AIR-DRYING TREATMENT IN PADDY SOILS ON MINERALIZATION OF SOIL ORGANIC NITROGEN

被引：0
|
作者：
TAKAHASHI, S
YAMAMURO, S
机构：
来源：
JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY | 1995年 / 29卷 / 02期
关键词：
SUMMATION OF EFFECTIVE TEMPERATURE; TRACER NH4+-N-15;
D O I：
暂无
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
In a laboratory experiment, mineralization rate of soil organic nitrogen under submerged conditions using N-15 tracer technique was studied. Mineralization rate increased with temperature. Cumulative amount of nitrogen mineralized was expressed as the product of effective temperature and the duration of incubation. The minimum threshold temperature was nearly 10 degrees C in the range of 20-30 degrees C. Air-drying of soil before submergence promoted mineralization within several weeks after submergence.
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页码：103 / 109
页数：7
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