Abstract
Application of hedgerow prunings to the soil in alley cropping ispracticed to sustain crop yield but information is lacking on effects ofhedgerow management on soil C and N dynamics under continuous cropping.Cumulative effects of 3.5 years of leucaena [Leucaenaleucocephala (Lam.) De Wit] hedgerow management on soil organic CandN and potential C and N mineralization were determined in an alley croppingexperiment in Haiti. Treatments were combinations of pruning uses and pruningregimes in a 3 × 3 factorial with a no-tree control (rock walls) in arandomized complete block design with 3 replicates. A hedgerow + fertilizertreatment in an adjacent trial was included for comparison. Soil samplescollected at 0–5, 5–10 and 10–20 cm depths weresealed in mason jars and incubated at 25 °C for 30 days.Organic C and N and inorganic N were measured before the incubation. InorganicNand respired CO2-C were measured after the incubation. After 3.5years, surface soil samples with prunings applied as mulch or incorporated atplanting had, respectively, 20 and 16% higher organic C, 34 and 18% higherorganic N concentrations, higher potential C and N mineralization and higherrelative N mineralization than with prunings removed. Soil C and N dynamicsweresimilar between pruning application methods. The two-cut regime with a longerregrowth period after cutting (0–40 DAP) had highest organic C in the0–20 cm soil layer whereas two-cut with a shorter regrowthperiod (0–30 DAP) had highest C turnover. Within soil layers, pruningapplication had higher organic C and N and potential C and N mineralizationthanthe no-tree control and alley plots with prunings removed in the 0–5cm layer whereas the latter treatments had similar C and Ndynamicsat all depths. Addition of N-P-K fertilizer in presence of fresh prunings didnot increase soil organic C and N but enhanced N dynamics in the surface soil.
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Anderson J.M. and Ingram J.S.I. 1989. Tropical Soil Biology and Fertility: A Handbook of Methods. CAB, Wallingford, UK.
Angers D.A., Bolinder M.A., Carter M.R., Gregorich E.G., Drury C.F., Liang B.C. et al. 1997. Impact of tillage practices on organic carbon and nitrogen storage in cool, humid soils of eastern Canada. Soil Till. Res. 41: 191–201.
BalasubramanianV. and Sekayange L. 1991. Effects of tree legume hedgerows on soil fertility changes and crop performance in the semi-arid highlands of Rwanda. Biol. Agric. Hortic. 8: 17–32.
Bannister M. and Nair P.K.R. 1990. Alley cropping as a sustainable agricultural technology for the hillsides of Haiti: Experience of an agroforestry outreach project. Am. J. Alternative Agric. 5: 51–57.
Blevins R.L., Thomas G.W. and Cornelius P.L. 1977. Influence of contrastnotillage and nitrogen fertilization on certain soil properties after 5 years of continuous corn. Agron. J. 69: 383–386.
Carter M.R. and Rennie D.A. 1982. Changes in soil quality under zero tillage farming systems: Distribution of microbial biomass and mineralizable C and N potentials. Can. J. Soil Sci. 62: 587–597.
Douglas C.L., Almaras R.R., Rasmussen P.E., Ramig R.E. and Roager N.C. 1980. Wheat straw composition and placement effects on decomposition in dry land agriculture of the Pacific Northwest. Soil. Sci. Soc. Am. J. 44: 833–837.
Duguma B., Kang B.T. and Okali D.U.U. 1988. Effect of pruning minerintensities of three woody leguminous species grown in alley cropping with maize and cowpea on an alfisol. Agrofor. Syst. 6: 19–35.
Guthrie R.L., Isaac L., Alexis G., Blemur M. and Bernard C. 1995. Soil profile description for Agroforestry Research sites in Haiti SECID/Auburn PLUS report No. 29. South-East Consortium for International DevelopmentandAuburnUniversity, Port-au-Prince, Haiti.
Heineman A.M., Otieno H.J.O., Mengich E.K. and Amadalo B.A. 1997. Growth and yield of eight agroforestry tree species in line plantings in Western Kenya and their effect on maize yields and soil properties. For. Ecol. Manage. 91: 103–135.
Hendrickson O.Q. 1985. Variation in the C:N ratio of substrate mineralized during forest humus decomposition. Soil Biol. Biochem. 17: 435–440.
Isaac L., Wood C.W. and Shannon D.A. 2000. Decomposition and nitrogen release of prunings from hedgerow species assessed for alley cropping in Haiti. Agron. J. 92: 501–511.
Kang B.T. 1993. Alley cropping: past achievements and future directions. Agrofor. Syst. 23: 141–155.
Kang B.T. 1997. Alley cropping – soil productivity and nutrient Susrecycling. For. Ecol. Manage. 91: 75–82.
Kang B.T., Wilson G.F. and Lawson T.L. 1984. Alley cropping: a stable alternative to shifting cultivation. International Institute of Tropical Agricultur, Ibadan, Nigeria.
Lal R. 1989. Agroforestry systems and soil surface management of a tropical alfisol: II Water runoff, soil erosion, and nutrient loss. Agrofor. Syst. 8: 239–242.
Larson W.E., Clapp C.E., Pierre W.H. and Morachan Y.B. 1972. Effects of increasing amounts of organic residues on continuous corn: II. Organic carbon, nitrogen, phosphorus, and sulfur. Agron. J. 64: 204–209.
Mafongoya P.L. and Nair P.K. 1997. Multipurpose tree pruning as a source of nitrogen to maize under semiarid conditions in Zimbabwe. I. Nitrogen recovery rates in relation to pruning quality and method of application. Agrofor. Syst. 35: 31–46.
Sanchez P.A. 1976. Properties and Management of Soils in the Tropics. John Wiley and Sons, New York, pp. 162–183.
SAS Institute 1990. SAS/STAT user's guide. Version 6. 4th edn. SAS Institute, Cary, NC.
Sims G.K., Ellsworth T.R. and Mulvaney R.L. 1995. Microscale determination of inorganic nitrogen in water and soil extracts. Commun. Soil Sci. Plant Anal. 26: 303–316.
Vanlauwe B., Vanlangenhove G. and Merckx R. 1995. Impact of rainfall regime on the decomposition of leaf litter with contrastnoing quality under subhumid tropical conditions. Biol. Fertil. Soils. 20: 8–16.
Wendt J.W., Jones R.B., Bunderson W.T. and Itimu O.A. 1996. Leucaena 1 maize alley cropping in Malawi. Part 2: Residual P and leaf management effects on maize nutrition and soil properties. Agrofor. Syst. 33: 295–305.
Wood C.W. and Edwards J.H. 1992. Agroecosystem management effects on soil carbon and nitrogen. Agric. Ecosyst. Environ. 39: 123–138.
Wood C.W., Westfall D.G., Peterson G.A. and Burke I.C. 1990. Impacts of cropping intensity on potential C and N minerintensities alization in no-till dryland agroecosystems. Agron. J. 82: 1115–1120.
Woomer P.L., Martin A., Albrecht A., Resck D.V.S. and Scharpenseel H.W. 1994. The importance and management of soil organic matter in the tropics. In: Woomer P.L. and Swift M.J. (eds), The Biological Management of Tropical Soil Fertility. Tropical Soil Biology and Fertility Programme (TSBF), Nairobi, Kenya, pp. 47–74.
Young A. 1989. Agroforestry for soil conservation. Wallingford, UK/ International Council for Research in Agroforestry. CAB International, Nairobi, Kenya.
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Isaac, L., Wood, C. & Shannon, D. Pruning management effects on soil carbon and nitrogen in contour-hedgerow cropping with Leucaena leucocephala (Lam.) De Wit on sloping land in Haiti. Nutrient Cycling in Agroecosystems 65, 253–263 (2003). https://doi.org/10.1023/A:1022600720226
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DOI: https://doi.org/10.1023/A:1022600720226