The Effects on Crop Production and Soil Carbon Sequestration of Root Production and Mortality in Paddy Rice using Organic Fertilizer

针对近年来化肥价格上涨的趋势，研究了施用有机质对水稻根系产量和死亡率的影响及其与作物产量和固碳的动态关系。结果表明，施用有机肥的水稻产量和根系死亡率高于施用化肥的水稻。利用RothC模型和我们的数据，土壤固碳的评估根据根系的这些差异而改变。我们的研究结果表明，根系动力学的影响大于以往的评价。

Toward the use of organic matter as an alternative to chemical fertilizers which have recently increased in price, we investigated the root production and mortality of paddy rice using organic matter and crop production and carbon sequestration in relation to the dynamics. In the results, the production and mortality of root of rice using organic fertilizer were more than using chemical fertilizer. Using RothC models with our data, the evaluation of soil carbon sequestration was changed depending on these differences in roots. Our results suggests the effects of root dynamics is greater than the previous evaluations.