Abstract
The fate of applied N in soil and its relative uptake by black pepper vine and erythrina tree on which the vine was trailed, were determined using 15N-labelled urea. Rapid depletion of 15N from 0-50 cm root zone was noticed due to heavy leaching during rains. The isotope content of the soil fell below the detection limit within one month of urea application. Both the vine and support tree absorbed N from the labelled fertilizer applied to the soil basin of the vine. Fertilizer use efficiency in black pepper vine was very low, in the range of 6 to 12%. On the other hand, the contribution of applied urea towards N uptake by erythrina support tree was 24 to 40%. Poor utilization of the applied N by the vine was, besides leaching of the nutrient, due to the severe root competition from the support tree. The overall utilization of the applied N was 51.4% by the vine and tree put together when N was applied at the rate of 25 g plant–1 and 31.0% for the dose of 50 g N plant–1.
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Cheeran A., Wahid P.A., Kamalam N.V., Sajan K. and Lyla M. 1992. Effect of variety, spacing and support material on nutrition and yield of black pepper (Piper nigrum L.). Agric. Res. J. Kerala 30: 11–16.
De Waard P.W.F. 1969. Foliar Diagnosis, Nutrition and Yield stability of Black Pepper (Piper nigrum) in Sarawak. Commun. Dept. Agric. Res. Amsterdam 58, pp.149.
Jayasree Sankar S., Wahid P.A. and Kamalam N.V. 1988. Absorption of soil-applied radiophosphorus by black pepper vine and support tree in relation to their root activities. J. Plantation Crops 16: 73–87.
Jose S., Gillespie A.R., Seifert J.R., Mengel D.B. and Pope P.E. 2000. Defining competition vectors in a temperate alley cropping system in the Midwestern USA: 3. Competition for nitrogen and litter decomposition dynamics. Agrofor. Systems 48: 61–77.
KAU 1996. Package of Practices Recommendations 'Crops 96'. Directorate of Extension, Kerala Agricultural University, Mannuthy, Thrissur, Kerala, India.
Lehmann J., da Silva J.P. Jr., Schroth G., Gebauer G. and da Silva L.F. 2000. Nitrogen use in mixed tree crop plantations with a legume cover crop. Pl. Soil 225: 63–72.
Nair P.K.R., Buresh R.J., Magendi D.N. and Latt C.R. 1999. Nutrient cycling in tropical agroforestry systems: myths and science. In: Buck L.E., Lassoie J.P. and Fernandes E.C.M. (eds), Agroforestry in Sustainable Agricultural Systems, pp 1–31. CRC Press, Lewis Publishers, Boca Raton, USA.
Rowe E.C., Hairiah K., Giller K.E., van Noodwijk M. and Cadisch G. 1999. Testing the safety-net role of hedgerow tree roots by 15N placement at different soil depth. Agrofor. Systems 43: 81–93.
Safeena A.N., Wahid P.A., Balachandran P.V. and Sachdev M.S. 1999. Absorption of molecular urea by rice under flooded and non-flooded soil conditions. Pl. Soil 208: 161–166.
Sanginga N., Zapata F., Danso S.K.A. and Bowen G.D. 1990. Effect of successive cuttings on uptake and partitioning of 15N among plant parts of Leucaena leucocephala. Biol. Fertil. Soils 9: 37–42.
Schroth G. 1999. A review of belowground interactions in agroforestry focusing on mechanisms and management options. Agrofor. Systems 43: 5–34.
Seiter S. and Horwath W.R. 1999. the fate of tree root and pruning nitrogen in a temperate climate alley cropping system determined by tree-injected 15N. Biol. Fertil. Soils 30: 61–68.
Thomas R.C. and Mead D.J. 1992a. Uptake of nitrogen by Pinus radiata and retention within the soil after applying 15N-labelled urea at different frequencies. I. Growth response and nitrogen budget. For. Ecol. Manage. 53: 131–151.
Thomas R.C. and Mead D.J. 1992b. Uptake of nitrogen by Pinus radiata and retention within the soil after applying 15N-labelled urea at different frequencies. II. Seasonal trends and processes. For. Ecol. Manage. 53: 153–154.
Van Noordwijk M., Lawson G., Soumare A. and Groot J.J.R. 1996. Root distribution of trees and crops: competition and/complementarity. In: Ong C.K. and Huxley P. (eds), Tree-Crop Interactions, A Physical Approach, pp. 319–364. CAB International, Wallingford, UK.
Wahid P.A. 2000. A system of classification of woody perennials based on their root activity patterns. Agrofor. Syst. 49: 123–130.
Wahid P.A. 2001. Radioisotope studies of root activity and rootlevel interactions in tree-based production systems: a review. Applied Radiat. Isot. 54: 715–736.
Wienhold B.J., Trooien T.P. and Reichman G.A. 1995. Yield and nitrogen use efficiency of irrigated corn in northern great plains. Agron. J. 87: 842–846.
Worsnop G. and Will G.M. 1980. Fate of 15N urea fertilizer applied to a recently thinned radiata pine stand on pumice soil. New Zealand J. For. Sci. 10: 381–394.
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Wahid, P., Suresh, P. & George, S.S. Absorption and partitioning of applied 15N in a black pepper + erythrina system in Kerala, India. Agroforestry Systems 60, 143–147 (2004). https://doi.org/10.1023/B:AGFO.0000013277.20452.31
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DOI: https://doi.org/10.1023/B:AGFO.0000013277.20452.31