Facultad de Agronomia - UBA

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Acceso al documento : Documento de Acceso Restringido. Disponible sólo para la Comunidad FAUBA.
URL al registro : http://ri.agro.uba.ar/cgi-bin/library.cgi?a=d&c=arti&d=2014monzon
Tipo de material : Artículo
Autores : Monzon, J. P.; Mercau, J. L.; Andrade, J. F.; Caviglia, O. P.; Cerrudo, A. G.; Cirilo, A. G.; Vega, C. R. C.; Andrade, F. H.; Calviño, P. A.
Título en inglés : Maize-soybean intensification alternatives for the Pampas
Fuente : Field Crops Research
Año : 2014
Volumen y número : Vol.162
Temas : AGRICULTURAL INTENSIFICATION; ALTERNATIVE AGRICULTURE; ARGENTINA; CROP PRODUCTION; CROP YIELD; CULTIVATION; DOUBLE CROP; ECONOMIC ANALYSIS; GROWING SEASON; HYBRID; INTERCROP; INTERCROPPING; IRRIGATION; LAND EQUIVALENT RATIO (LER); MAIZE; MONOCULTURE; PAMPAS; PRICE DYNAMICS; RAINFED AGRICULTURE; RELAY CROP; SOWING; SOYBEAN; SUSTAINABILITY
Idioma : inglés
Páginas :  p.48-59
Resumen : Cultivating multiple crops as a land use alternative could increase system productivity and sustainability, providing options to soybean monoculture for the Argentinean Pampas. This study evaluates the performance of maize-soybean in double crop, relay crop and intercrop across a wide range of water supply and length of growing season in the Pampas. It also assesses the effect of maize cycle length and maize and soybean prices on these intensification alternatives. A total of 16 experiments, 6 rainfed and 10 irrigated, were conducted at four INTA Research Stations during five growing seasons. Yield ranged from 4390 to 16,862kgha-1, for sole maize crops, and from 1884 to 5130kgha-1, for sole soybean crops. The intensification alternatives productivity, measured as the land equivalent ratio (LER), was associated to the length of the growing season and was higher than 1.00 in 100 percent, 86 percent and 61 percent of the cases for maize-soybean double crop, relay crop and intercrop, respectively. Maize grain yield in double crop was similar to that of sole maize crop, whereas soybean yield in double crop was reduced compared to that of sole soybean crop due to sowing date delay. Maize and soybean grain yields under relay crop and intercrop were lower than their respective sole crops. The intercrop increased soybean yield and decreased maize yield compared with relay crop. Yield of soybean in intercrop and relay crop increased when sown with short cycle length maize hybrids. Maize and soybean sole crop yields were positively correlated (P less than 0.01, r=0.82). However, a negative correlation was found between maize and soybean yields for intensification alternatives under irrigated conditions (P less than 0.01, r=-0.68), but not under rainfed conditions. The intercropping alternatives under rainfed conditions could reduce farm risk, due to the similar economic results with soybean sole crop, and the lack of correlation between soybean and maize yields.
DOI : 10.1016/j.fcr.2014.03.012
Link al editor : http://www.elsevier.com/
Cita recomendada : Monzon, J. P., Mercau, J. L., Andrade, J. F., Caviglia, O. P., Cerrudo, A. G., Cirilo, A. G.,... Calviño, P. A. (2014). Maize-soybean intensification alternatives for the Pampas. Field Crops Research‚ 162‚  p.48-59. Doi: 10.1016/j.fcr.2014.03.012.
 
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