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Comparing Fertilization Regims Under Three Onion Farming Systems in a Semiarid Tropical area

Perez, Martha-Cecilia and Ramirez-Guerrero, Hugo (2005) Comparing Fertilization Regims Under Three Onion Farming Systems in a Semiarid Tropical area. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]

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Summary

An experiment at the University experimental station at Cabudare, Venezuela compared six fertilization regimes in three onion (Allium cepa L.) production systems (two organic (OS), two integrated (IS) and two conventional (CS) systems), for their effects on crop growth, productivity, and soil properties. Fertilization regimes (two per system) consisted of (i) 3 Mg ha-1 sugarcane filtercake compost (fc) (OSfc), (ii) 3 Mg ha-1 chicken manure compost (chm) (OSchm), (iii) 0.6 Mg ha-1 mineral compound fertilizer (mf) (CSmf), (iv) without any fertilizer (nf) (CSnf), (v) mf + chm (ISchm), and (vi) mf + chm + fc (ISchmfc). Additionally, farming systems included nonchemical (OS), chemical (CS) and integrated pest management. Results indicated that the onion growth and productivity was higher from plots managed under integrated systems (mainly ISchm). However, when comparing the effect on soil properties, differences were not found. The organic onion production in the semiarid area was highly productive during the dry season studied


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:vegetables, sustainable, research, developing country
Subjects: Crop husbandry > Production systems > Vegetables
Research affiliation: International Conferences > 2005: 1st ISOFAR Conference > 2005: 1st ISOFAR Conference
Related Links:http://orgprints.org/4013/, http://www.isofar.org/adelaide2005, http://orgprints.org/view/projects/int-conf-isofar-2005.html
Deposited By: ISOFAR,
ID Code:4444
Deposited On:15 Nov 2005
Last Modified:12 Apr 2010 07:30
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:The paper presented here is the final paper submitted by the authors to the conference Researching Sustainable Systems.
The final edited papers are available with the following publication:
Köpke, Ulrich; Niggli, Urs; Neuhoff, Daniel; Cornish, Peter; Lockeretz, Willie und Willer, Helga, (Hrsg.) (2005) Researching Sustainable Systems. Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), Held in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the National Association for Sustainable Agriculture, Australia (NASAA), 21 – 23 September 2005, Adelaide Convention Centre, Adelaide, South Australia.. Research Institute of Organic Agriculture FiBL, CH-Frick, and International Society of Organic Agriculture Research (ISOFAR), c/o Institute of Organic Agriculture (IOL), DE-University of Bonn. http://orgprints.org/4013/
Distribution: Paper copies may be ordered from FiBL at a cost of 28 Euros plus mailing costs (see FiBL shop at http://www.fibl.org/shop); FiBL order number 1394. A PDF version is available free of charge for ISOFAR members via the member area of www.isofar.org.

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