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我院教学实验场共有土地面积1500亩,其中耕地820.2亩,(含果园蔬莱地97.38亩)。灌木林和荒地267.3亩,鱼塘水面84.12亩。其他用地328.38亩(建筑、道路等)。全场土壤共有26个土种,分属三大土类和五个土属。耕地土壤中,上等肥力158亩,中等为430.7亩,下等231.5亩。土壤的主要农业化学性质是;pH5.9～7.3;有效钾含量较丰富,速效钾含量>150ppm的土壤占78％;有效氮和有效磷不足,缺磷和缺氮土壤分别占全场土壤面积的53％和62.42％;有机质低于3.0％的土壤占20％。因此,根据土壤有机质和有效养分分布图,对缺氨、缺磷的土壤进行氮、磷肥的补给,以种植绿肥和合理轮作等来提高土壤有机质含量。
A total of 1,500 acres of land in our hospital teaching experiment field, of which 820.2 acres of arable land, (including 97.38 acres of orchard vegetable Lai). 267.3 mu of shrubbery and wasteland, 84.12 mu of fish pond surface. Other land 328.38 acres (buildings, roads, etc.). The audience of soil a total of 26 species of soil, belonging to three major soil types and five soil genus. Cultivated soil, the best fertility of 158 acres, medium to 430.7 acres, 231.5 acres under the equal. The main agrochemical properties of soils are pH 5.9 ~ 7.3, 78% of available potassium and 150% of available K, insufficient available N and available P, P and N-deficient soils, respectively, 53% and 62.42% of the total soils; soils with less than 3.0% organic matter accounted for 20%. Therefore, based on the distribution of soil organic matter and available nutrients, nitrogen and phosphorus fertilizers were supplied to the anaerobic and phosphate-deficient soils to increase the content of organic matter in the soil by planting green manures and rational rotation.