5) the ratio of carbon to nitrogen in the soil,
the ratio of carbon to nitrogen (C: N ratio) is used to indicate the difficulty or ease of decomposition of organic matter in the soil. (Carbon to 1 part nitrogen) that affect carbon sequestration in soil. When the ratio of carbon to nitrogen in the soil. The rate of decomposition of organic matter in the soil, it will slow due to the ratio of carbon to nitrogen. Indicates that the soil contains less nitrogen, which is insufficient for the needs of microorganisms to decompose organic matter in the soil. (Faculty of the Department of Soil Science, 2548), making the carbon sequestration in the soil of studies of Hoorman and Islam (2010) found that legumes (Alfalfa), the younger a protein, amino acids and sugar accumulation. In the trunk Thus be decomposed by soil microorganisms easily. The soil in the area is high nitrogen content. It is the ratio of carbon to nitrogen in the soil. And a high rate of degradation. Contributing to carbon sequestration in soil. But the oak genus (oat) or wheat straw (wheat straw) older have less protein and sugar in the trunk. I have accumulated a lot of lignin. Which is resistant to degradation by soil microorganisms. Therefore, the ratio of carbon to nitrogen in the soil. Microbial degradation, thus making it hard to make the store more carbon in the soil. The ratio of carbon to nitrogen in the soil, most is about 10: 1 and Jagadammaet al. (2007) found that areas with fertilizer (280 kg N ha-1) is the amount of carbon in the soil (75.8 Mg ha. -1) than areas without fertilizer (68.4 Mg ha-1) by increasing nitrogen content. Is the ratio of carbon to nitrogen in the soil decreased. (At a depth of 0-10 cm) and has resulted in more soil organic carbon.
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