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近几年来,我县开发山地种植果树面积达8万多亩,一般在10—25°的缓坡上形成规模开发。新垦丘陵山地红壤土层厚度在0.8—1.5米左右,土壤瘦瘠,土质粘重,据县土肥站测定,土壤有机质含量为1—3％,全量氮(N)磷(P_2O_5)钾(K_2O)含量分别为0.069％、0.189％、1.21％,碱解氮8.26ppm,速效磷钾含量分别为0.9ppm和60.0ppm,pH值5.0—5.5之间居多。园地裸露面积大,土壤侵蚀严重,雨季期间造成不少崩塌。没有灌溉条件。由于干旱缺
In recent years, my county development of mountainous area planted fruit trees more than 80,000 mu, usually in the 10-25 ° gentle slope formed scale development. The thickness of the red soil in the reclaimed hills is about 0.8-1.5 m, the soil is thin and the soil is heavy, and the soil organic matter content is 1-3%, and the total N, P2O5, K2O ) Were 0.069%, 0.189%, 1.21%, 8.26ppm respectively. The contents of available P and K were 0.9ppm and 60.0ppm, respectively, and the pH was between 5.0-5.5. The park has a large exposed area with serious soil erosion and caused many landslides during the rainy season. No irrigation conditions. Due to drought