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Influence of intercropping and irrigation frequencies in the leaf development and taro (Cocoyam) productivity under organic management

Silva, Edmilson Evangelista da; Azevedo, Pedro Henrique Sabadin; Almeida, Maxwell Merçon Tezolin Barros; De-Polli, Helvécio and Guerra, José Guilherme Marinho (2008) Influence of intercropping and irrigation frequencies in the leaf development and taro (Cocoyam) productivity under organic management. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Summary

The objective of this work was to evaluate the influence of the intercropping and irrigation frequencies in the leaf development and productivity of taro (Colocasia esculenta) under organic management. The experiment was set up as a randomized complete block design, a factorial 2 x 2, with four replications. Taro was cultivated in monoculture or intercropped with Crotalaria juncea under two irrigation frequencies: every 3.5 days for 30 minutes and every 15 days for 2 hours. The intercropping increased taro petiole length but did not increase leaf area. The same effects were observed for irrigation frequency on the leaf area and petiole, length at the 30th and 60th days after C. juncea cutting. The amount of taro yield and offshoot number of class 1 (category up to 40g) were affected negatively by the intercropping. However the total number, total yield and average weight of the offshoot were not affected by the intercropping. The irrigation frequency promoted positive effects in the number and weight of offshoot (category of 80g weight or higher), as well as in the total taro yield and average offshoot weight. The conclusion was that the short frequency irrigation contributed for the development and productivity of taro offshoots and the intercropping with C. juncea did not decreased the total productivity of taro cropping.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Organic agriculture, green manuring, intercropping and irrigation
Subjects: Crop husbandry > Crop combinations and interactions
Farming Systems > Farm nutrient management
Crop husbandry > Irrigation and drainage
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 7.1 Production systems
Brazil > Embrapa - Brazilian Agricultural Research Corporation
Deposited By: Silva, Edmilson Evangelista da
ID Code:12595
Deposited On:02 Oct 2008
Last Modified:12 Apr 2010 07:36
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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