Results 31 to 40 of about 62,003 (196)

Frequency of light fluctuations affects tomato morphology and physiology only at extreme amplitudes

open access: yesFrontiers in Plant Science
IntroductionElectricity prices can fluctuate considerably during the day due to the dependency of solar and wind energy and varying demands. Fluctuating lighting regimes might thus be economically attractive.
J. Anja Dieleman   +5 more
doaj   +1 more source

Fruit Detectability Analysis for Different Camera Positions in Sweet-Pepper

open access: yesSensors, 2014
For robotic harvesting of sweet-pepper fruits in greenhouses a sensor system is required to detect and localize the fruits on the plants. Due to the complex structure of the plant, most fruits are (partially) occluded when an image is taken from one ...
Jochen Hemming   +3 more
doaj   +1 more source

Climate and Yield in a closed greenhouse [PDF]

open access: yes, 2008
The so-called closed greenhouse (closed ventilation windows) is a recent innovation in Dutch greenhouse industry. The technical concept consists of a heat pump, underground (aquifer) seasonal energy storage as well as daytime storage, air treatment units
Bakker, M.J.   +3 more
core   +2 more sources

Comparison of climate and production in closed, semi-closed and open greenhouses [PDF]

open access: yes, 2011
A (semi-)closed greenhouse is a novel greenhouse with an active cooling system and temporary heat storage in an aquifer. Air is cooled, heated and dehumidified by air treatment units. Climate in (semi-)closed greenhouses differs from that of conventional
Dieleman, J.A.   +5 more
core   +2 more sources

Digital Twins in greenhouse horticulture: A review

open access: yesComputers and Electronics in Agriculture, 2022
Digital Twins can be considered as a new phase in smart and data-driven greenhouse horticulture. A Digital Twin is a digital equivalent to a real-life object of which it mirrors its behaviour and states over its lifetime in a virtual space. Research indicates that they can substantially enhance productivity and sustainability, and are able to deal with
Ariesen-Verschuur, Natasja   +2 more
openaire   +1 more source

Farmers’ Knowledge and Acceptance of Microalgae in Almería Greenhouse Horticulture

open access: yesAgronomy, 2022
Almería horticulture in SE Spain hosts the largest concentration of greenhouses in the world and faces important environmental sustainability challenges. Microalgae-derived applications are efficient nature-based solutions as they are used for wastewater
Ángela Ruiz-Nieto   +3 more
doaj   +1 more source

Use of leaf thickness sensors in horticultural crops [PDF]

open access: yes, 2017
Changes in leaf thickness can be a rapid indicator of the plant’s water status and can therefore serve as an alarm signal for potential water deficits. Combining the use of continuous leaf thickness measurements with a mechanistic plant model describing ...
De Pauw, Dirk   +3 more
core   +2 more sources

On-farm evaluation of integrated pest management of thrips and whiteflies in herb cuttings in Ethiopia : report to the Ministry of Agriculture and Rural Development [PDF]

open access: yes, 2010
Integrated Pest Management reduces the use of chemicals and therewith the impact of greenhouse horticulture on the environment. It improves working conditions and enables access of Ethiopian products on the world market.
Belder, E., den, Elings, A.
core   +1 more source

AREAL SPECIALIZATION OF GREENHOUSE HORTICULTURE

open access: yesGeographical Review of Japan, 1971
Under the rapid economic development in which class stratification is being taken place among Japanese farmers, the viable farmers are enlarging their farm size and specializing their products. In other words, areal scale of production is widening and specialization in product is extending.
openaire   +2 more sources

Spatial Distribution of Greenhouse Commercial Horticulture in Kenya and the Role of Demographic, Infrastructure and Topo-Edaphic Factors

open access: yesISPRS International Journal of Geo-Information, 2014
Greenhouse commercial horticulture in Kenya started more than two decades ago and has evolved to be a significant sector to the national economy. So far no studies have explored the spatial patterns and dynamics of the area under greenhouse cultivation ...
Faith Justus, Danlin Yu
doaj   +1 more source

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