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本文应用土体有机重构技术,对韩城市下峪口土地整治项目新增耕地土体剖面进行了重构。以容重为1.7g·cm~(-3)黄土构建5cm的人造犁底层,以容重为1.2g·cm~(-3)的黄土构建25cm厚耕作层,通过调整土壤粒径范围,并以《中国土壤养分分级标准》中的养分指标标准中不缺乏水平为设计目标,进行了第一季作物种植,长势良好。后期将结合当地耕作制度,实行轮作倒茬,多施有机肥,保证新增耕地养分平衡供给,为作物生长提供良好的土体剖面环境,使开发耕地逐步实现稳产、高产。
In this paper, soil organic reconstructed technology was used to reconstruct the newly-added cultivated land profile of the Xiayukou land remediation project in Hancheng. The artificial plow bottom was constructed with the loess of 1.7g · cm ~ (-3) and the loess of 5cm. The tillage layer of 25cm thick was built with loess of 1.2g · cm ~ (-3), the soil particle size was adjusted, China Soil Nutrient Classification Standards "in the indicators of nutrient content is not lacking in the design goals for the first quarter of crop cultivation, growing well. In the latter part of the year, we will combine the local farming system with crop rotation and crop rotation and apply more organic fertilizer to ensure the supply of nutrients to newly added cultivated land so as to provide a good soil profile for crop growth so that steady and high yields can be gradually achieved in the development of cultivated land.