首页|Study on the soil fertility enrichment under Leucaena leucocephala plantation
Study on the soil fertility enrichment under Leucaena leucocephala plantation
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A field experiment was laid out in Annamalai University Experimental farm during 1994-1999 to study the fertility enrichment of soil under Leucaena leucocephala plantation. The experimental soil was clayey with saline reaction (pH=8.38) and EC (5.37dSm~(-1)) and low organic carbon content (0.38 percent). The available nutrient status was 142.36, 9.42 and 115.16 N, P_2O_5 and K_2O kg ha~(-1) respectively. The crop was planted during Jan., 1994 at a spacing of 2 X 2 m. The trees were grown for a period of six years and biannual biometric observations were recorded. The soil samples were collected at the start of the experiment and after five years of plantation. The results of the experiments indicated that the plant height and girth of the tree were significantly increased with the application of nitrogen. The pH and EC were reduced by the Leucaena leucocephala planting to the level of 7.62 and 1.94 dS m~(-1) respectively. The fertility of the soil was significantly enhanced as reflected by increased organic carbon content of 0.64 percent and available N, P_2O_5 and K_2O status of 187.31.12.14 and 154.08 kg ha~(-1) respectively.
soilfertilityLeucaena leucocephalaplantation
V. Imayavaramban、R. Singaravel、K. Thanunathan、S. Kandasamy
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Dept. of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai-608002
NSTL
