Results 61 to 70 of about 27,062 (211)

Agriculture in motion: Intertwined geographical and socio-professional mobilities in North Africa's groundwater economy [PDF]

open access: yes, 2018
In this paper, we examine the greenhouse horticulture in Algeria's Sahara, which is one illustrative example of the agricultural transitions that have taken place in North Africa on the new irrigation frontiers created through groundwater use.
Hartani, Tarik   +2 more
core   +1 more source

STAGES OF CUCUMBER BREEDING IN THE LABORATORY OF BREEDING OF VEGETABLE CROPS Of TRANSNISTRIAN AGRICULTURAL RESEARCH INSTITUTE

open access: yesОвощи России, 2015
The main stages of development of research on cucumber breeding during more than 70 years in the Institute, and, in particular, in the laboratory of breeding are described.
V. F. Gorokhovsky
doaj   +1 more source

Carbon dioxide concentration in Mediterranean greenhouses : how much lost production? [PDF]

open access: yes, 2007
In the absence of artificial supply of carbon dioxide in the greenhouse environment, the CO2 absorbed in the process of photosynthesis must ultimately come from the external ambient through the ventilation openings.
Dimauro, B.   +3 more
core   +3 more sources

Economic analysis of forced tomato production with regard to the intensity of production

open access: yesInternational Journal of Horticultural Science, 2019
We assessed the cost/income conditions of forced tomato production and return conditions of the growing technologies by investment-profitability analysis.
D. A. Dorogi, F. Apáti
doaj   +1 more source

Profit Analysis of Papaya Crops under Greenhouses as an Alternative to Traditional Intensive Horticulture in Southeast Spain [PDF]

open access: yes, 2019
The high-yield agricultural model in Almería is based on eight different crops. Having led fruit and vegetable exports in Spain for more than 50 years, a decrease in melon and watermelon growing areas in Almería caused a change in supply that affected ...
Belmonte Ureña, Luis   +3 more
core   +1 more source

Evaluating the Ventilation Performance of Single-Span Plastic Greenhouses with Continuous Screened Side Openings

open access: yesAgronomy
Natural ventilation is the most cost-effective environmental control method for protected horticulture. To overcome the issues associated with high temperatures in greenhouses, analyzing their ventilation characteristics and maximizing their natural ...
Hyung-Kweon Kim
doaj   +1 more source

Energy consumption for plastic covered greenhouse structures [PDF]

open access: yes, 2006
In this paper different greenhouse structures were analyzed regarding energy consumption and energy productivity in winter lettuce production. Greenhouse production is still among most energy consuming branches in agriculture with very high investments and annually costs.
Djević, Milan   +1 more
openaire  

Optimization of Structural Configuration and Ridge Height for Large-Span Insulated Plastic Greenhouse Based on Finite Element Analysis

open access: yesAgriculture
The large-span insulated plastic greenhouse is a highly promising horticultural facility. The design parameters and configuration of structural components significantly impact their safety and load-bearing performance.
Xiaoxing Dong   +7 more
doaj   +1 more source

Policy and Environmental Implications of Photovoltaic Systems in Farming in Southeast Spain: Can Greenhouses Reduce the Greenhouse Effect? [PDF]

open access: yes, 2017
Solar photovoltaic (PV) systems have grown in popularity in the farming sector, primarily because land area and farm structures themselves, such as greenhouses, can be exploited for this purpose, and, moreover, because farms tend to be located in rural ...
Carreño Ortega, Ángel   +3 more
core   +3 more sources

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