Articles
AN OLIVE GROVE IN BIOLOGICAL PRODUCTION MODE
Article number
924_32
Pages
255 – 259
Language
English
Abstract
The main objectives of this work are: to observe the phenological stages of the olive tree (Olea europaea L.); to monitor the vegetative growth of current year branches; to study the influence of tree spacing and conduction system on the productivity (kg/ha) olive quality (fat percentage, olive oil acidity and moisture); and to monitor the realization of some agricultural techniques and identify the main weeds.
All this has been studied in an olive grove in Organic Farming Mode.
The results obtained led to the following conclusions: (1) the cultivar Galega Vulgar in Organic Farming Mode adapted well to the characteristics of Bejas region; (2) in regard to tree spacing and conduction system, only spacing had a significant effect on the productivity of the olive grove.
In the spacing of 5×5 m a productivity of
6075 kg/ha was obtained, which can be considered a good result considering that it is a dry land olive grove in Organic Farming Mode; (3) the cultivar Galega Vulgar in Organic Farming Mode produces high quality olive oil in high quantities; (4) the agricultural techniques practiced (pruning; organic fertilization and weeds control between rows) guaranteed a good productivity of the olive grove and an improvement of physical, chemical and biological characteristics of the soil; (5) the main weeds identified were Calendula arvensis L.; Chamaemelum fuscatum (Brot.); Foeniculum vulgare Mill.; Geranium molle L.; Oxalis pes-caprae L.; Raphanus raphanistrum L. and Sinapis arvensis L., and they are fundamental in the preservation of the auxiliary fauna; (6) Euphyllura olivine was found in the olive grove.
This pest was countered with a mineral oil treatment.
All this has been studied in an olive grove in Organic Farming Mode.
The results obtained led to the following conclusions: (1) the cultivar Galega Vulgar in Organic Farming Mode adapted well to the characteristics of Bejas region; (2) in regard to tree spacing and conduction system, only spacing had a significant effect on the productivity of the olive grove.
In the spacing of 5×5 m a productivity of
6075 kg/ha was obtained, which can be considered a good result considering that it is a dry land olive grove in Organic Farming Mode; (3) the cultivar Galega Vulgar in Organic Farming Mode produces high quality olive oil in high quantities; (4) the agricultural techniques practiced (pruning; organic fertilization and weeds control between rows) guaranteed a good productivity of the olive grove and an improvement of physical, chemical and biological characteristics of the soil; (5) the main weeds identified were Calendula arvensis L.; Chamaemelum fuscatum (Brot.); Foeniculum vulgare Mill.; Geranium molle L.; Oxalis pes-caprae L.; Raphanus raphanistrum L. and Sinapis arvensis L., and they are fundamental in the preservation of the auxiliary fauna; (6) Euphyllura olivine was found in the olive grove.
This pest was countered with a mineral oil treatment.
Authors
I.S. Saramago, M.A. Regato, I.M. Guerreiro , J.E. Regato
Keywords
Olea europaea L., ‘Galega Vulgar’, olive quality, conduction system, tree spacing, weeds
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