Πλοήγηση ανά Συγγραφέα "Gemtos, T. A."
Αποτελέσματα 1-20 από 30
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Applicability of an empirical runoff estimation method in central Greece
(2007)In order to assess the water runoff on the sloping cultivated fields of Central Greece, an experiment was carried out from 1997 to 2000. The following treatments were used: three tillage methods, viz. conventional tillage, ... -
Cotton lint quality spatial variability and correlation with soil properties and yield
(2005)Seed cotton samples were collected in a field from which yield maps had been taken in the previous three years. The samples were analysed in a High Volume Instrument (HVI) automatic machine to assess the lint quality. ... -
Effect of cotton-seed acid delinting product and gin trash on soil nitrification and the possibility in disseminating cotton pathogens
(2005)An experiment was carried out where gin trash that is a weakly alkaline material and a commercial organic fertiliser was added to an acid soil. Also, the residues of cottonseed acid delimiting product, were added to a ... -
Effects of soil compaction, water and organic matter contents on emergence and initial plant growth of cotton and sugar beet
(1997)The effects of compaction on the emergence and initial growth of cotton and sugar beet plants were studied in pots in a glasshouse experiment. Apart from compaction, the factors studied were two soil types, two initial ... -
Energy analysis of three energy crops in Greece
(2013)To assess the potential of energy crops to provide a stock material for biofuel production three crops (rapeseed, sunflower and sweet sorghum) were studied in field experiments in Thessaly, Central Greece in 2007 and 2008. ... -
Energy budget of a method to harvest cotton stalks
(1999)The energy budget of a method to harvest cotton stalks developed and tested in Greece is reported in the present paper. The method used conventional hay harvesting machinery. An instrumented tractor was used to measure the ... -
Evaluation of three cultivation practices for early cotton establishment and improving crop profitability
(2006)Cultivation practices permitting earlier sowing of cotton (Gossypium hirsutum L.) in Greece are required to maximize yields and facilitate harvesting. An experiment was conducted for 2 years in Central Greece to evaluate ... -
A five-point penetrometer with GPS for measuring soil compaction variability
(2013)Measuring soil compaction is a factor of interest to monitor soil fertility, which plays an important role in crop production cycle. Soil penetration resistance is the most commonly used method to measure soil compaction. ... -
Flower spatial variability in an apple orchard
(2009)Precision pomology is the application of site-specific management into orchards. Orchards produce high value crops and the application of site-specific management has high potential. Finding plant or soil characteristics ... -
Fuzzy cognitive map based approach for predicting yield in cotton crop production as a basis for decision support system in precision agriculture application
(2011)This work investigates the process of yield prediction in cotton crop production using the soft computing technique of fuzzy cognitive maps. Fuzzy cognitive map (FCM) is a fusion of fuzzy logic and cognitive map theories, ... -
A fuzzy inference system to model grape quality in vineyards
(2014)Fuzzy inference systems (FIS) are particularly suited for aggregating multiple data to feed multi-variables decision support systems. Moreover, grape quality is a complex concept that refers to the simultaneous achievement ... -
Harvesting of cotton residue for energy production
(1999)The possibility of collecting cotton stalks in Greece and using them for energy production was investigated. The production and properties of cotton stalks were studied and a system for collection of the aerial part is ... -
Management zones delineation using fuzzy clustering techniques in grapevines
(2013)Precision viticulture aims at managing vineyards at a sub-field scale according to the real needs of each part of the field. The current study focused on delineating management zones using fuzzy clustering techniques and ... -
Performance of cotton residue collection machinery
(2014)Cotton is an important crop in Greece, covering more than 255,000 ha every year. Apart from the lint and seed, cotton produces large amounts of residues that can be used for energy production. The aim of this work was to ... -
Precision agriculture applications in horticultural crops in greece and worldwide
(2011)Precision agriculture is the management of spatial and temporal variability of the fields using ICT. The application in horticultural crops was developed in the last ten years. Data are collected from different sources ... -
Reliability of cotton pickers and its effect on harvesting cost
(2002)In this study, the reliability of cotton pickers is analysed and its importance in studying the performance of harvesting systems is examined. A theoretical development of farm machinery and specifically of cotton-picker ... -
Site-specific management in an olive tree plantation
(2011)Yield and soil mapping were carried out in 2007 and 2008 in a 9.1 ha commercial olive tree plantation for olive oil production. The orchard is in the southern Peloponnese, where olives are cultivated extensively for extra ... -
Soft computing technique of fuzzy cognitive maps to connect yield defining parameters with yield in cotton crop production in central Greece as a basis for a decision support system for precision agriculture application
(2010)This work investigates the yield and yield variability prediction in cotton crop. Cotton crop management is a complex process with interacting parameters like soil, crop and weather factors. The soft computing technique ... -
Soil spatial variability and site-specific fertilization maps in an apple orchard
(2011)In the present study, the spatial variability of some soil physical and chemical properties in a 0.8 ha apple orchard were studied. Sixty soil samples were taken from two sampling depths: 0-0.3 m and 0.3-0.6 m. The soil ... -
Soil spatial variability in small Greek apple orchards
(2007)In the present study, the spatial variability of some soil physical and chemical properties in a 0.8 ha apple orchard were studied. Sixty soil samples were taken to a depth of 30 cm and analyzed for the following soil ...