Agricultural Science

Agricultural Science

ISSN: 2291-4471 (Print)    ISSN: 2291-448X (Online)

Volume 2 (2014), No. 3, Pages 13-22

DOI: 10.12735/as.v2i3p13

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Effect of Soil Water Environment and Simulated Savanna Climate on Growth and Mineral Nutrition in Jatropha curcas L.

Hiroshi Matsumoto1  Rumana Yeasmin2  Frank Kalemelawa1  Makoto Aranami3  Mitsuhiro Inoue4  Eiji Nishihara5 

1The United Graduate School of Agricultural Sciences, Tottori University 4-101 Koyama-Minami, Tottori 680-8553, Japan
2University of Technology Sydney, Broadway, PO Box 123, NSW 2007, Australia
3Sekisui Chemical Tanzania LTD., 196 Regent Estate, Dar es Salaam, Tanzania
4Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori, Tottori, Japan
5Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan

URL: http://dx.doi.org/10.12735/as.v2i3p13

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Abstract

This study aimed to determine the optimal soil water conditions for J. curcas L. cultivation under the bi-annual rain seasons of the African Savannah climate. Changes in J. curcas L. seedling biomass and mineral nutrient uptake and movement patterns were examined under soil water matric potentials of -2.5, -2.9, -3.4 and -4.0kPa, and two rain seasons separated by a dry spell. The bi-annual savannah rain conditions were simulated using automated buried-type tensiometer system. During the first rain season (irrigation), -3.4kPa soil water matric potential showed the highest water-use efficiency (2.44 g dry weight L-) and biomass yield (57.14g). Seedlings were variously affected by the subsequent dry spell, including total defoliation and stunting. On re-irrigation, seedling recovery (biomass and water use efficiency) was less as compared to the first rain season. Among the nutrients monitored, N, P and K were the most predominantly uptaken, with N showing the closest correlation with seedling growth. Soil matric water potential of -3.4 kPa is the optimum soil water environment for J. curcas cultivation in the savannah conditions; additionally, irrigation during the dry season is essential for a stable harvest.

Keywords: Jatropha curcas L., growth, water use efficiency, mineral nutrition, savanna climate

To Cite this Article: Matsumoto, H., Yeasmin, R., Kalemelawa, F., Aranami, M., Inoue, M., & Nishihara, E. (2014). Effect of soil water environment and simulated savanna climate on growth and mineral nutrition in Jatropha curcas L. Agricultural Science, 2(3), 13-22. http://dx.doi.org/10.12735/as.v2i3p13

Copyright © Hiroshi Matsumoto et al.

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This article is published under license to Science and Education Centre of North America. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License.

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Effect of Soil Water Environment and Simulated Savanna Climate on Growth and Mineral Nutrition in Jatropha curcas L.
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