The Potential of Legumes Green Manuring for Total Nitrogen and Some Properties of Soil Improvement of Landslide Soil

Abstract

      The experiment was conducted on landslide soil area of Li soil series under the environment of landslide zone at tumbon Had-Nyew, Muang district, Uttaradit province during March 2015 – February 2016. The influence potential of three legume species were sun hemp, nut bush and angola pea. The main objective to identify legume species suitable for use as landslide soil quality and can improve total nitrogen and landslide soil productivity. The result showed that sunn hemp had highest total nitrogen, the secondary was angola pea and nut bush respectively. However, three legume species had higher than total nitrogen soil control and all three are higher than the total nitrogen standard values of Land development department. The amount of nitrogen in the sun hemp Nitrogen content was 2.45% higher than that of other beans.