Determination of Organic Carbon Content of Corn Stalk: A Casestudy in Laiyuan County, Hebei Province

Abstract

Organic carbon is an important component of straw, which plays an important role in the hydrothermal conditions, physical and chemical properties of straw. In order to discuss the transformation of corn straw in straw and the influence on straw fertility, this paper selects 6 villages in Laiyuan County, Hebei Province as the study area, and uses straw organic carbon analyzer to determine the organic carbon content of straw samples before and after corn straw treatment in the study area. The results show that: The organic carbon content of corn straw in Laiyuan County is 50.62%~55.01%, with an average of 53.46%. In Laiyuan County, the organic carbon content is high in the northern townships, low in the western townships and low in the southern townships. From the spatial distribution of organic carbon content of straw, the organic carbon content of corn straw in the northern area of Laiyuan County is high, while the organic carbon content in the western area is low. The conversion of corn straw in straw and its effect on straw fertility are related to the type of straw, the amount of straw and the planting method.