Nitrogen Cycling in Ecosystems of Latin America and the Caribbean

Front Matter....Pages I-VII
Plant assimilation and nitrogen cycling....Pages 1-13
Microbiological regulation of the biogeochemical nitrogen cycle....Pages 15-34
Simulation of nitrogen in agro-ecosystems: Criteria for model selection and use....Pages 35-43
Nitrogen supply and crop yield: The global scene....Pages 45-59
The role of the atmosphere in nitrogen cycling....Pages 61-71
Regional nitrogen budgets: Approaches and problems....Pages 73-79
Some priority research areas in nitrogen studies....Pages 81-90
Nitrogen in shifting cultivation systems of Latin America....Pages 91-103
Nitrogen distribution in several traditional agro-ecosystems in the humid tropical lowlands of south-eastern Mexico....Pages 105-117
Nitrogen distribution in hybrid and local corn varieties and its possible relationship to a declining soil nitrogen pool under shifting agriculture at Indian Church, Belize....Pages 119-127
 15 N-urea transport and transformation in two deforested Amazonian soils under laboratory conditions....Pages 129-137
Nitrogen cycling in sugarcane....Pages 139-146
Nitrogen gains and losses in sugarcane ( Saccharum sp.) agro-ecosystems on the coast of Peru....Pages 147-156
Potential growth of alfalfa ( Medicago sativa L.) in the desert of Southern Peru and its response to high NPK fertilization....Pages 157-165
Crop utilization and fixation of added ammonium in soils of the West Indies....Pages 167-186
Distribution of 15 N fertilizer in field-lysimeters sown with garlic ( Allium sativum ) and foxtail millet ( Setaria italica )....Pages 187-191
Nitrogen cycling in a 15 N-fertilized bean ( Phaseolus vulgaris L.) crop....Pages 193-208
Nitrogen cycling in a flooded-soil ecosystem planted to rice ( Oryza sativa L.)....Pages 209-220
The nitrogen balance of vegetable crops irrigated with untreated effluent....Pages 221-226
Research into the Rhizobium/Leguminosae symbiosis in Latin America....Pages 227-239
Nitrogen cycling in coffee plantations....Pages 241-246
Nitrogen cycle of tropical perennial crops under shade trees I. Coffee....Pages 247-258
Nitrogen cycle of tropical perennial crops under shade trees II. Cacao....Pages 259-269
Dynamics of nitrogen in a shaded cacao plantation....Pages 271-281
Nitrogen fixation in a Mexican coffee plantation....Pages 283-291
Nitrogen cycling in South American savannas....Pages 293-303
Nitrogen balance in the Trachypogon grasslands of Central Venezuela....Pages 305-314
Net primary productivity and nitrogen and carbon distribution in two xerophytic communities of central-west Argentina....Pages 315-323
The nitrogen cycle in a ‘Terra Firme’ rainforest on oxisol in the Amazon territory of Venezuela....Pages 325-332
Nitrogen cycling in the seasonally dry forest zone of Belize, Central America....Pages 333-342
Seasonal dynamics of nitrogen cycling for a Prosopis woodland in the Sonoran Desert....Pages 343-353
Litterfall and nitrogen turnover in an Amazonian blackwater inundation forest....Pages 355-358
Nitrogen in litterfall and precipitation and its release during litter decomposition in the Chilean piedmont matorral....Pages 359-365
Regional gains and losses of nitrogen in the Amazon basin....Pages 367-376
Eutrophy in Lake Aculeo, Chile....Pages 377-387
Report of work group shifting cultivation and traditional agriculture....Pages 389-394
Report of the work group on sugarcane....Pages 395-397
Report of the work group on cereal and grain crops....Pages 399-402
Report of the work group on coffee and cacao plantations....Pages 403-407
Report of the work group on savannas and shrublands....Pages 409-413
Report of the work group on Latin American forests....Pages 415-420
Report of the work group on wetlands (including rice) and aquatic systems....Pages 421-424
Back Matter....Pages 425-430