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

为了利用有机质替代最近价格上涨的化肥，我们研究了利用有机质和作物生产与碳汇的水稻根系生产和死亡与动态的关系。结果表明，有机肥对水稻根系的产量和死亡率均高于化肥。使用RothC模型和我们的数据，土壤固碳的评估根据这些根的差异而改变。我们的结果表明，根系动态的影响比以前的评估更大。

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.