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湖南省土壤肥料工作站(续第3期第35页)湖南省坡地型农田主要是坡耕旱土。坡耕旱土基本没有田间基础设施保护,且长年的顺坡耕种,受到地表径流的侵蚀,水土流失较为严重,土层浅薄。加之缺少灌溉条件和增肥措施,土壤肥力低下,作物产量不高,生产受到干旱影响大,收成极不稳定。湖南省坡耕旱土面积18.46万公顷,占全省中低产田面积的7.2%。湖南省的坡耕旱土主要类型有红壤旱土、紫色土旱土和石灰土旱土。坡耕旱土的改造宜采用坡改梯治土治水工程改造措施,同时配套
Soil and Fertilizer Workstation in Hunan Province (Continued on the 35th page) Hunan sloping farmland is mainly arable land. Slope farming has basically no protection of farmland infrastructure, and long years of slope cultivation, erosion by surface runoff, soil erosion is more serious, shallow soil. Coupled with the lack of irrigation conditions and fertilization measures, low soil fertility and crop yields are not high, production is greatly affected by drought, and yields are extremely unstable. Slope agricultural land in Hunan Province covers an area of 184,600 hectares, accounting for 7.2% of the total area of middle-low yield farmland in the province. The main types of slope farmland in Hunan Province are red soil dry soil, purple soil dry soil and lime soil dry soil. Slope farming arable land should adopt slope to improve soil and water treatment project to improve the measures, at the same time supporting