Producción de maíz (zea mays l.), soya (glycine max l.) y caupí (vigna unguiculata (l.) walp) sembrados en asocio con pastos en el trópico húmedo.

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Producción de maíz (Zea mays L.), soya (Glycine max L.) y caupí (Vigna unguiculata (L.) Walp) sembrados enasocio con pastos en el trópico húmedo.

18 p. Turrialba. CATIE. CR. 1994.
Author(s):
Pérez, H.E. Duarte-Gutiérrez, J.M. Pezo, D. Arze-Borda, J.A. Romero-Royo, F. Argel, P.J. EstaciónExperimental Agrícola Santiago del Estero. 268-4200 Santiago del Estero. AR E-mail: dpezo@cariari.ucr.ac.cr E-mail: jarze@catie.ac.cr E-mail: p.argel@cgiar.org.
Keywords:
Plants. Spermatophytes.Magnoliophyta. Magnoliopsida. Liliopsida. Fabaceae/pap. Fabales. Poaceae. Zea Mays. Glycine Max. Vigna Unguiculata. Brachiaria Dictyoneura. Brachiaria Brizantha. Pennisetum Purpureum. Intercropping.Pastures. Crop Management. Biomass. Land Use. Humid Tropics. Plant Competition. Companion Crops. Biological Competition. Costa Rica. Central America. Area De Conservacion Cordillera Volcanica Central.Turrialba (CANTON). Catie.
Summary:
Two experiments were carried in the humid tropics of Costa Rica, to evaluate competition effects between grasses and annual grain crops when they are grownsimultaneously and in alternate rows, as an strategy to cover the costs of reclaiming degraded pastures dominated by native grasses (mainly Axonopus compressus). In the present study are reported onlythe results obtained with annual crops. In experiment 1, soybean cvs. IAC-8 and Jupiter were grown at a density of 200,000 plants/ha (0.5 x 0.1 m), in monoculture or intercropped with B. brizantha cv.Marandu or B. dictyoneura CIAT 6133, both at a density of 40,000 plants/ha (0.5 x 0.5 m). In order to define the growth pattern of all crops, total aerial biomass and leaf area were measured at five...
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