Abstract
Tropical soils are often low in available P and therefore require inputs of P fertilizer for optimum plant growth and production of food and fiber. The cost of applying imported or locally produced, water-soluble, P fertilizers is often greater than utilizing indigenous phosphate rock. Therefore quantifying the P availability of soils amended with phosphate rock-based products in a variety of crop management and environmental conditions in developing countries is desirable for making recommendations on best type and rate of fertilizers to use to obtain maximum agronomic and economic benefits. One adequate approach for evaluating the agronomic effectiveness of rock phosphate materials is through the use of32P/33P isotopic tracers. The present paper describes the principles and assumptions of the32P isotopic techniques commonly used in the field and greenhouse for the agronomic evaluation of rock phosphate materials. An overview of the applications of these techniques is also given.
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References
Armiger WH & Fried M (1957) The plant availability of various sources of phosphate rock. Soil Sci Soc Am Proc 21: 183–189
Black CA & Scott CO 1956 Fertilizer evaluation. I. Fundamental principles. Soil Sci Soc Am Proc 20: 176–179
Broeshart H (1974) Quantitative measurement of fertilizer uptake by crops. Neth J Agric Sci 22: 245–254
Chien SH & Hammond LL (1978) A simple chemical method for evaluating the agronomic potential of phosphate rock for direct application. Soil Sci Am Soc J 42: 615–617
Cooke GW (1956) The value of rock phosphate for direct application. Empire J Exp Agric 24: 195–306
Doll EC, Miller HF & Freeman JF (1957) Initial and residual effects of rock phosphate and superphosphate. Agron J 53: 247–250
Fardeau JC & Jappé J (1976) Nouvelle méthode de détermination du phosphore assimilable par les plants: extrapolation des cinétiques de dilution isotopique. C.R. Séances Acad. Sci. Sér. D282: 1137–1140
Fardeau JC & Jappé J 1979 Détermination simultanée des valeurs A et L du phosphore d'un sol à l'aide du32P et du33P.In: Isotopes and Radiation in Research on Soil-Plant Relationships, pp 499–506. IAEA, Vienna, Austria
Fardeau JC & Jappé J (1988) Valeurs caractéristiques des cinétiques de dilution isotopique des ions phosphate dans les systèmes sol-solution.In: Gachon (ed) Phosphore et Potassium dans les relations Sol-plante. Conséquences sur la Fertilisation, pp 77–99. INRA, Paris, France
Fardeau JC Morel C & Boniface R (1991) Cinétiques de transfert des ions phosphate du sol vers la solution du sol: paramètres caractéristiques. Agronomie 11: 787–797
Fried M (1954) Quantitative evaluation of processed and natural phosphates. Agric Food Chem 2: 241–244
Fried M (1964) ‘E’, ‘L’, and ‘A’ values. In: Trans 8th Int Congr Soil Sci, Vol 4, pp 29-41, Bucharest, Romania. Pub. House Academy Soc Rep Romania
Fried M & MacKenzie AJ (1949) Rock phosphate studies with neutron irradiated rock phosphate. Soil Sci Soc Am Proc 14: 226–231
Frossard E, Fardeau JC, Brossard M & Morel JL (1994) Soil isotopically exchangeable phosphorus: a comparison between E and L values. Soil Sci Soc Am J 58: 846–851
Gachon L (1988) Comparaisons des valeurs E et L; application a.l'examen de l'enrichissement de différents types de sol par divers engrais. In: Gachon L (ed) Phosphore et Potassium dans les Relations Sol-plante. Conséquences sur la Fertilisation, pp 197–203. INRA, Paris, France
Goedert WJ, Edson Lobato & Morethsoon Resende (1982) Management of tropical soils and world food prospects. In: Trans 12th Congress Soil Sci, 5: Whiter Soil Research, pp 338–364. New Delhi, India. The Int Soc Soil Sci and the Indian Soc Soil Science
IAEA ( 1976) Measurement of soil and fertilizer phosphorus availability to plants. In: Tracer Manual on Crops and Soils. Techn Rep Series 171, pp 129–138. IAEA, Vienna, Austria
IFDC (1978) Seminar on phosphate rock for direct application. Proceedings of a seminar held in Haifa, Israel 20-23 March 1978. USA, Muscle Shoals, AL. 163p.
Khasawneh FE & Doll EC 1978 The use of phosphate rock for direct application to soils. Adv Agron 30: 159–206
Kucey RMN & Bole JB (1984) Availability of phosphorus from 17 rock phosphates in moderately and weakly acidic soils as determinated by P-32 dilution, A value and total P uptake. Soil Sci 132: 180–188
Larsen S (1952) The use of32P in studies on the uptake of phosphorus by plants. Plant Soil 4: 1–10
Mc Cune DL & Stangel PJ (1982) Problems and priorities of research in soil fertility and fertilizers. In: Trans Int Congr Soil Sci 5: Whiter Soil Research, pp 181- 211. New Delhi, India. The Int Soc Soil Sci and the Indian Soc Soil Science
Morel C & Fardeau JC ( 1989) Native soil and fresh fertilizer phosphorus uptake as affected by rate of application and P fertilizers. Plant Soil 115: 123–128
Morel C & Fardeau JC (1990) Uptake of phosphate from soils and fertilizers as affected by soil P availability and solubility of phosphorus fertilizers. Plant Soil 121: 217–224
Morel C & Fardeau JC (1991) Phosphorus bioavailability of fertilizers: a predictive laboratory method for its evaluation. Fert Res 28: 1–9
Pino I, & Casas L (1990) Phosphoric rock appraisal in volcanic ash soils of Chile. In: Trans 14th Int Congr Soil Sci, IV, pp 121–125, Kyoto, Japan. The Int Soc Soil Sci and the Japanese Soc Soil Science
Scott Russell R (1959) The values of measurements of isotopic dilution in the study of soil-plant relationships. Z Pflanzenernähr Düng Bodenkd 84: 63–75
Truong B, Pichot J & Bernard P (1978) Caractérisation et comparaison des phosphates naturels tricalciques d'Afrique de l'Ouest en vue de leur utilisation directe en agriculture. Agron Trop 33: 136–145
United Nations Economic and Social Council (1983) Mineral resources; new sources of phosphate rock and potash, particularly low-grade deposits. New locations for exploration for phosphate rock in the developing countries. USA, New York. 28 p
Zapata F, Axmann H & Braun H ( 1986) Agronomic evaluation of rock phosphate materials by means of radioisotope techniques, Trans 13th lnt Congr Soil Sci III, pp 1012–1013. Hamburg, Germany. The Int Soc Soil Sci and the German Soc Soil Science
Zapata F (1990) Isotope techniques in soil fertility and plant nutrition studies. In: Use of Nuclear Techniques in Studies of Soil-Plant Relationships, pp 109–127. Training Course Series, No.2, IAEA, Vienna, Austria
Zapata F & Axmann H (1991) Agronomic evaluation test of rock phosphate materials by means of radioisotope techniques. Pédologie XLI-3: 291–301
Zapata F, Casanova, E, Salas AM & Pino I (1994) Dynamics of phosphorus in soils and phosphate fertilizer management in different cropping systems through the use of isotopic techniques. In: Trans 15th World Congr Soil Sci, Vol 5a, pp 451–466, Acapulco, Mexico. The Int Soc Soil Sci and the Mexican Soc Soil Science
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Zapata, F., Axmann, H. 32P isotopic techniques for evaluating the agronomic effectiveness of rock phosphate materials. Fertilizer Research 41, 189–195 (1995). https://doi.org/10.1007/BF00748308
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DOI: https://doi.org/10.1007/BF00748308