نتایج جستجو برای: greenhouse crops

تعداد نتایج: 71599  

2005
F. Orgaz M. D. Fernández S. Bonachela M. Gallardo E. Fereres

Large unheated greenhouse areas are located in the coastal lands of the Mediterranean Basin, based on low-cost structures covered with plastic. Water is a scarce resource in these areas and therefore it is necessary to optimise irrigation practice by applying the crop water needs, thus avoiding waste. This work was undertaken to determine the water requirements of four major horticultural crops...

Journal: :Remote Sensing 2015
Manuel A. Aguilar Andrea Vallario Fernando J. Aguilar Andrés García Lorca Claudio Parente

Greenhouse detection and mapping via remote sensing is a complex task, which has already been addressed in numerous studies. In this research, the innovative goal relies on the identification of greenhouse horticultural crops that were growing under plastic coverings on 30 September 2013. To this end, object-based image analysis (OBIA) and a decision tree classifier (DT) were applied to a set c...

2011
Douglas Cox Touria Eaton

ome organic fertilizers are suitable for greenhouse crops and can also fit the current ways of applying fertilizers commercially. However, not much information is available on plant response, nutrient supplying power, or the environmental impact of nutrient leaching with organic fertilizers. Not surprisingly, because of their differences in the makeup, levels of success in growing acceptable gr...

Journal: :Neotropical entomology 2008
André L Lourenção André C Alves Cristina G Q Fugi Evandro S Matos

Trialeurodes vaporariorum (West.) is a pest of greenhouse vegetables and ornamentals and infests crops in Europe and in the American continent. In Brazil, just a few cases are known on economic crops, being all restricted to greenhouse crops. In 2003, in Itatiba and neighboring localities of State of São Paulo, Brazil, field infestations of T. vaporariorum were observed, mainly on tomato and gr...

2011
Jeong-hwan Hwang Mi-suk Kim Hyun Yoe

The WSN(Wireless Sensor Networks) technology is one of the important technologies to implement the ubiquitous society, and it could make many changes in the existing agricultural environment including livestock rearing, cultivation and harvest of agricultural products if such a WSN technology is applied to the agricultural sector. This study attempts to establish ubiquitous agricultural environ...

2011
Dae-Heon Park Jangwoo Park

Dew condensation on the leaf surface of greenhouse crops can promote diseases caused by fungus and bacteria, affecting the growth of the crops. In this paper, we present a WSN (Wireless Sensor Network)-based automatic monitoring system to prevent dew condensation in a greenhouse environment. The system is composed of sensor nodes for collecting data, base nodes for processing collected data, re...

Journal: :Netherlands Journal of Agricultural Science 1988

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید