Abstract
The Alfisols and Vertisols of the semi-arid tropics (SAT) have the potential to support regional food needs, but are limited by low availability of nutrients, especially phosphorus (P) and nitrogen (N). The situation is further exacerbated by low and unreliable rainfall, and limited groundwater resources. Despite these problems that make food production an unpredictable enterprise, some 850 million (one sixth of humanity) inhabitants of these regions are directly involved in agriculture for their living.
The little we already know has been very important. BUT what we don’t yet understand may prove to be our greatest resource for the future PROVIDED that research to deepen our understanding is sustained — L T Evans.
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References
Adu-Gyamfi J J, Ito O, Yoneyama T, Gayatri Devi and Katayama K 1997a Timing of N fertilization on N2 fixation, N recovery and soil profile nitrate dynamics on sorghum/pigeonpea intercrops on Alfisols of the semi-arid tropics. Nutr. Cycl. Agrosyst. 48, 197208.
Adu-Gyamfi J J, Ito O, Yoneyama, T, Gayatri Devi and Katayama K 1997b Nitrogen management and biological nitrogen fixation in sorghum/pigeonpea intercropping on Alfisols of the semi-arid tropics. Soil Sci. Plant Nutr. 43, 1061–1066.
Ae N, Arihara J, Okada K, Yoshihara T and Johansen C 1990 Phosphorus uptake by pigeonpea and its role in cropping systems of the Indian subcontinent. Science 284, 477–480.
Ae N, Arihara J, Okada K, Yoshihara T, Otani T and Johansen C 1993 The role of piscidic and secreted by pigeonpea roots grown in an Alfisol with low P fertility. In Genetics Aspects of Plant Mineral Nutrition. Eds. P J Randall, E Delhaize, R A Richards and R Munns. pp 279–288. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Fujita K, Chaudhary M I, Adu-Gyamfi J J and Yoshizawa D 1995 Dinitrogen fixation and growth responses to phosphorus and aluminium application in pigeonpea (Cajanus cajan L). Soil Sci. Plant Nutr. 41, 729–735.
Gayatri Devi, Ito O, Matsunaga R, Tobita S, Rao T P, Vidyalakshmi N and Lee K K 1996 Simulating root system development of short-duration pigeonpea. Exp. Agric. 32, 67–78.
Ito O, Johansen C, Adu-Gyamfi J J, Katayama K, Kumar Rao J V D K and Rego T J (Eds.) 1996a Roots and Nitrogen in Cropping Systems of The Semi-Arid Tropics. JIRCAS (Japan International Research Centre for Agricultural Sciences) International Agriculture Series No. 3. 691 pp.
Ito O, Matsunaga R, Katayama K, Tobita, S, Adu-Gyamfi J J, Kashiwagi J, Rao T P and Gayatri Devi 1996b Dynamics of roots and nitrogen in cropping systems of the semi-arid tropics. JIRCAS J. 3, 33–47.
Ito O, Matsunaga R, and Rao T P 1996e Diurnal changes in nonstructural carbohydrates in pigeonpea leaves. Soil Sci. Plant Nutr. 42, 419–424.
Johansen C Lee K K and Sahrawat K L (Eds.) 1991 Phosphorus Nutrition of Grain Legumes in the Semi-Arid Tropics. ICRISAT (International Crops Research Institute for the Semi-Arid Tropics) Patancheru, Andhra Pradesh, India. 264 pp.
Katayama K, Ito O, Matsunaga R, Adu-Gyamfi J J, Rao T P and Anders M M 1995 Nitrogen balance and root behavior in four pigeonpea-based intercropping systems. Fertil. Res. 42, 315–319.
Katayama K, Ito O and Rao TP 1998 Seeding characteristics and retention of current photosynthates in leaves in relation to initial growth in pigeonpea (Cajanus cajan L. Millsp.) and cowpea (Vigna sinensis Endl.) Soil Sci. Plant Nutr. 44 (3), 477–480.
Katayama K, Ito O, Adu-Gyamfi J J, Rao T P, Dacanay E V and Yoneyama T 1999 Effects of NPK fertilizer combinations on yield and nitrogen balance in sorghum or pigeonpea on a Vertisol in the semi-arid tropics. Soil Sci. Plant Nutr. 45, 143–150.
Matsunaga R, Ito O. Tobita S, Rao T P and Johansen C 1994 Response of short-duration pigeonpea to nitrogen application after short-term waterlogging on a Vertisol. Field Crops Res. 38, 167–174.
Otani T and Ae N 1996 Phosphorus (P) uptake mechanisms of crops grown in soils of low P status I. Screening of crops for efficient P uptake, Soil Sci. Plant Nutr. 42, 155–163.
Otani T, Ae N and Tanaka H 1996 Phosphorus (P) uptake mechanisms of crops grown in soils of low P status: II Significance of organic acids in root exudates of pigeonpea. Soil Sci. Plant Nutr. 42, 553–560.
Rao, T P, Ito O and Matsunaga R 1993 Differences in uptake kinetics of ammonium and nitrate in cereals and legumes. Plant Soil 154, 67–72.
Rao T P, Ito O, Matsunaga R and Yoneyama T 1997 Kinetics of 15N-labelled nitrate uptake by maize (Zea mays L) root segments. Soil Sci. Plant Nutr. 43, 491–498.
Tobita S, Ito O, Matsunaga R, Rao T P, Rego T J, Johansen C and Yoneyama T 1994 Field evaluation of nitrogen fixation and use of nitrogen fertilizer by sorghum/pigeonpea intercropping on an Alfisol in the Indian semi-arid tropics. Biol. Fertil. Soils. 17, 241–248.
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Adu-Gyamfi, J.J., Ito, O., Arihara, J., Nakano, H., Johansen, C. (2002). Government of Japan Project activities at ICRISAT 1984–1999. In: Adu-Gyamfi, J.J. (eds) Food Security in Nutrient-Stressed Environments: Exploiting Plants’ Genetic Capabilities. Developments in Plant and Soil Sciences, vol 95. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1570-6_2
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DOI: https://doi.org/10.1007/978-94-017-1570-6_2
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