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R. Lal (1989)
Agroforestry systems and soil surface management of a tropical alfisol:Agroforestry Systems, 8
(1987)
Nitrogen cycling in multiple cropping system
R. Lal (1989)
Agroforestry systems and soil surface management of a tropical alfisol: I: Soil moisture and crop yieldsAgroforestry Systems, 8
K. Mulongoy, M. Meersch (1988)
Nitrogen contribution by leucaena (Leucaena leucocephala) prunings to maize in an alley cropping systemBiology and Fertility of Soils, 6
R Lal (1989)
Agroforestry systems and soil surface management of a tropical Alfisol. III. Changes in soil chemical propertiesAgroforestry Systems, 8
B. Kang, G. Wilson, T. Lawson (1984)
Alley cropping. A stable alternative to shifting cultivation
B T Kang (1987)
Advances in Nitrogen Cycling in Agricultural Ecosystems
R Lal (1989)
Agroforestry systems and soil surface management of a tropical Alfisol. II. Water runoff, soil erosion and nutrient lossAgroforestry Systems, 8
Agroforestry Systems 10: 131-133, 1990. 131 © 1990 Kluwer Academic Publishers. Printed in the Netherlands. Nutrient addition into soil by leaves of Cassia siamea and Gliricidia sepium grown on an ultisol in Southern Nigeria B.S. GHUMAN and R. LAL International Institute of Tropical Agriculture ( HTA ), Oyo Road, Ibadan, Nigeria, and Dept. of Agronomy, The Ohio State Univ., Columbus, Ohio, U.S.A. Alley cropping is a potentially useful system for the humic and sub-humid tropics [Kang et al., 1984; Lal, 1989a; b; c]. Research data on nutrient input by woody perennials is a useful information in developing a package of cultural practices for judicious soil and crop management. In the present study, growth and leaf fall under Cassia siamea and biomass production by Gliricidia sepium hedgerows were studied on an Ultisol at Okomu (5°12 ' E; 6024 'N; 76mamsl), in Southern Nigeria. The Okomu environs receive about 2000mm of rainfall between March and October. Soils of the ex- perimental site are reddish sandy loam at the surface changing to clay loam with depth, and are classified as Paleudults with low pH and low base saturation. These soils are free of gravels/plinthite and skeletal materials, and are well drained. The
Agroforestry Systems – Springer Journals
Published: May 13, 2004
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