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Articles 31 - 60 of 98
Full-Text Articles in Agriculture
Effects Of Wheel Traffic Porosity And Compaction Of Soil Profile, Cevdet Şeker, A. Ali̇ Işildar
Effects Of Wheel Traffic Porosity And Compaction Of Soil Profile, Cevdet Şeker, A. Ali̇ Işildar
Turkish Journal of Agriculture and Forestry
The aim of this experimental study was to determine the effect on soil porosity and compaction of the number of the tractor passes on the soil surface. The soil has a sandy loam texture. A tractor passed once, twice, and four times while the water content of soil was near field capacity. Numbers of tractings increased soil bulk density and compaction, and decreased total porosity, void ratio, air porosity and drainage porosity. One and two tractor passes did not markedly affect the percentage of porosity kept at field capacity porosity, but four tractor passes improved it.
The Cooling Performance Of Wet Pads And Their Effect On Reduction Of The Inside Temperature A Cage House, Nuh Uğurlu, Mehmet Kara
The Cooling Performance Of Wet Pads And Their Effect On Reduction Of The Inside Temperature A Cage House, Nuh Uğurlu, Mehmet Kara
Turkish Journal of Agriculture and Forestry
This study was carried out in a cage house of the commercial egg company in the Konya Province. The cage house capacity was 36762 layers. Eight exhaust fans with a capacity of 40000 m 3 /h were installed on the end walls in the house. Twenty-four cellulose evaporative cooling pads, each one 1.20 m high x 1.80 m long x 100 mm thick were mounted on the side walls. In this system cooling pads served as air inlets, and evaporative cooling was supplied when dry and hot air flowed into the pads. The temperature of cooled air was decreased by …
Hatay Yöresinde Ii. Ürün Olarak Yetistirilen Virginia Tipi Bazi Yerfistigi( Arachis Hypogaea L. Subs. Hypogaea Var. Hypogaea) Genotiplerinin Önemlitarimsal Ve Kalite Özellikleri Ile Bu Özelliklerin Verim Olusumuna Etkileri, Mehmet Emi̇n Çalişkan, Mehmet Mert, Necmi̇ İşler, Sevgi̇ Çalişkan
Hatay Yöresinde Ii. Ürün Olarak Yetistirilen Virginia Tipi Bazi Yerfistigi( Arachis Hypogaea L. Subs. Hypogaea Var. Hypogaea) Genotiplerinin Önemlitarimsal Ve Kalite Özellikleri Ile Bu Özelliklerin Verim Olusumuna Etkileri, Mehmet Emi̇n Çalişkan, Mehmet Mert, Necmi̇ İşler, Sevgi̇ Çalişkan
Turkish Journal of Agriculture and Forestry
Agronomic and quality characteristics of 16 Virginia type groundnut cvs. and, direct and indirect effects of these characters on yield formation as an alternate crop were investigated in Hatay district in 1995 and 1996. The genotypes differed significantly in respect to all investigated characters, and it was concluded that the peanut could be an important alternate crop for Hatay district based on the results of pod yield, which ranged between 211.9 and 311.3 kg/da. Correlation and path coefficient analysis also revealed that the number of pods per plant, pod yield per plant and kernel/pod ratio correlated significantly with pod yield …
Determination Of The Heterotic Effects And Phenotypic Correlation In Earlines, And Agronomical And Quality Characteristics In Cotton ( G. Hirsutum L.), Mustafa Ali̇ Kaynak, Aydin Ünay, İsa Özkan, Hüseyi̇n Başal
Determination Of The Heterotic Effects And Phenotypic Correlation In Earlines, And Agronomical And Quality Characteristics In Cotton ( G. Hirsutum L.), Mustafa Ali̇ Kaynak, Aydin Ünay, İsa Özkan, Hüseyi̇n Başal
Turkish Journal of Agriculture and Forestry
This research was conducted at the Adnan Menderes University Agricultural Faculty.The objectives of the study were to investigate the heterotic effects of earliness and agricultural and quality characters under Aegean region conditions, where earliness is extremely important, and to determine correlations among earliness characters and correlations among earliness, yield, ginning output, seed cotton weight per boll and quality characteristics in cotton (Gossypium hirsutum L). In the 1995, F 1 generation, and in 1996 the F 2 generation were obtained, and in 1997, F 1 and F 2 generations were grown with parents in randomized block design with three replications. The …
Effects Of Genotype And Concentration Of 2,4-D On Callus Induction And Plant Regeneration From Young Inflorescences Of Dallisgrass ( Paspalum Dilatatum Poir), Ersi̇n Can, Nafi̇z Çeli̇ktaş, Rüştü Hati̇poğlu
Effects Of Genotype And Concentration Of 2,4-D On Callus Induction And Plant Regeneration From Young Inflorescences Of Dallisgrass ( Paspalum Dilatatum Poir), Ersi̇n Can, Nafi̇z Çeli̇ktaş, Rüştü Hati̇poğlu
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the effects of genotype and 2,4-D concentrations on the callus induction and plant regeneration from young inflorescences of dallisgrass ( Paspalum dilatatumPoir). Segments of young inflorescences from six different ecotypes of dallisgrass were cultured on MS-medium containing different con-centrations of 2,4-D ( 2, 4, 6, 8 and 10 mg/l). The results of the study showed that the ecotypes were significantly different in cal-lus induction ratio, callus weight per petri dish and plant regeneration from the young inflorescences. With respect to the ecotypes, callus induction ratio varied from 17.5 % to 65 %, callus weight …
Estimation Of Inheritance Of Some Agronomical Characters In Common Wheat By Diallel Cross Analysis, Okan Şener, Mehmet Kilinç, Tacetti̇n Yağbasanlar
Estimation Of Inheritance Of Some Agronomical Characters In Common Wheat By Diallel Cross Analysis, Okan Şener, Mehmet Kilinç, Tacetti̇n Yağbasanlar
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the genetic structure of a population which included six common wheat cultivars or lines and crosses of half diallel cultivars or lines. It was concluded that the epistatic effect was significant for a weight of 1000 grains and yield per plant, while the additive effect was significant for period of maturity, the number of spikelets per head, and the number of kernels per hear. The dominance effect was found in yield per plant. A partial dominance effect was found in other char-acters. It was found that at least 4 pairs of genes were effective …
The Response Of Sunflower Grain Yield To Water, Abdullah Kadayifçi, Osman Yildirim
The Response Of Sunflower Grain Yield To Water, Abdullah Kadayifçi, Osman Yildirim
Turkish Journal of Agriculture and Forestry
The main aims of this study were to obtain grain and oil yields of sunflower ( Helianthus annuus L.) under adequate and limited soil water supply during the total growing season and under limited soil water supply at the early vegetative, late vegetative, vegetative, flowering and yield formation periods, to find out the sensitive periods to soil water deficits, and to determine yield response factors (k y ). The experiments were conducted in the fields of the Research Farm of the Agricultural Faculty, Ankara University, in 1994 and 1995. It was found that the highest grain and oil yields were …
Biomass Tables Of Black Alder ( Alnus Glutinosagaertn. Subsp. Barbata(C.A. Mey.) Yalt.), Nedi̇m Saraçoğlu
Biomass Tables Of Black Alder ( Alnus Glutinosagaertn. Subsp. Barbata(C.A. Mey.) Yalt.), Nedi̇m Saraçoğlu
Turkish Journal of Agriculture and Forestry
The objective of this study was to estimate biomass per tree for Alnus glutinosaGaertn. subsp. barbata(C. A. Mey.) Yalt. stands in the east Black Sea region of Turkey, Dry-weight tables constructed by means of the material collected from 86 sample trees chosen in 19 constructed by means of the material collected from 86 sample trees chosen in 19 trials in the Black Sea region between Persembe and Kemalpasa within 10-1510 m altitude. Sample plots were established 0.04 ha in size in stands of various maturity stages, sites and density classes within the specified population. The plots were laid as squares …
Performances Of Some Promising Strains Of Common Wheat Under The Conditions Of Marmara Region, Köksal Yağdi
Performances Of Some Promising Strains Of Common Wheat Under The Conditions Of Marmara Region, Köksal Yağdi
Turkish Journal of Agriculture and Forestry
In this study, eight strains from five different combinations improved for the South Marmara Region and two cultivars of bread wheat were used as the plant materials. The cultivars used in the experiment have been widely grown in this region. Some important agronomic traits of both cultivars and strains were determined in yield experiments lasting four years. Plant height, seed number and seed weight per spike, 1000-seed weight, seed yield and hectoliter weight were examined and compared with the control cultivars and strains of F 6 -F 9 generations. The results of the four-year research indicated that some strains, especially …
A Study On Azolla As A Nitrogen Source In Rice Farming, Mi̇that Nuri̇ Gevrek
A Study On Azolla As A Nitrogen Source In Rice Farming, Mi̇that Nuri̇ Gevrek
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the best combination of azolla ( Azolla anabaena) and N fertilizer under Menemen ecological conditions in 1996 and 1997. The A. mexicana genotype of azolla was brought from the International Rice Research Institute (IRRI) and adapted to the Aegean region of Turkey. The results of study showed that the combination azolla+N fertilizer yielded approximately 356 kg/da of rice under Menemen second crop conditions. It was also concluded that the use of azolla will lead to a 1/3 reduction in the N demand of a rice crop.
Research On The Selection Of Hazelnuts Grown In Samsun, Taki̇ Demi̇r, Neri̇man Beyhan
Research On The Selection Of Hazelnuts Grown In Samsun, Taki̇ Demi̇r, Neri̇man Beyhan
Turkish Journal of Agriculture and Forestry
Performed in 1995 and 1996, the aim of this research was the selection of hazelnut types grown in Terme, Çarşamba, Salıpazarı and Ayvacık districts of Samsun province. In total, 104 types were investigated. The types which resulted in 800 or more Total Weight-Ranked Points were considered. 19 types in 1995 and 22 types in 1996, five of which were preselected in 1995, were evaluated. The results were exposed to the "Weight-Ranked Method". According to the evaluation results the types 55-Ç-5, 55-T-15, 55-Ç-4, 55-A-3 and 55-Ç-7 were selected in 1995. In 1996, the types 55-S-15, 55-T-39, 55-Ç-26 and 55-Ç-8 alongside the …
Effects Of Different Media, Type And Concentrations Of Auxin On Callus Induction And Plant Regeneration From Young Inflorescences Of Yellow Bluestem (Bothriochloa Ischaemum(L.) Keng), Ersi̇n Can, Rüştü Hati̇poğlu
Effects Of Different Media, Type And Concentrations Of Auxin On Callus Induction And Plant Regeneration From Young Inflorescences Of Yellow Bluestem (Bothriochloa Ischaemum(L.) Keng), Ersi̇n Can, Rüştü Hati̇poğlu
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the effects of different media, auxin types and concentrations on callus induction and plant regeneration from young inflorescences of 15 ecotypes of yellow bluestem ( Bothriochloa ischaemum). The young inflorescences were cultured on two different basal media (LS and SH) containing different concentrations (2, 4, 6, and 8 mg/l) of two different auxins (2, 4-D and Dicamba). The results showed that the ecotypes were significantly different from each other in callus induction rate, callus weight per dish and regenerate number per inflorescence segment. Depending on the ecotypes, mean callus induction rate varied from 9.7% …
Investigations On Some Agronomical Characters And Hybrid Performances Of New-Improved Synthetic Varieties In The Sunflower (Helianthus Annuusl.), Abdurrahi̇m Tanju Göksoy, Zeki̇ Meti̇n Turan
Investigations On Some Agronomical Characters And Hybrid Performances Of New-Improved Synthetic Varieties In The Sunflower (Helianthus Annuusl.), Abdurrahi̇m Tanju Göksoy, Zeki̇ Meti̇n Turan
Turkish Journal of Agriculture and Forestry
This research was carried out to determine some agronomical characters and the hybrid performances for these characters of new-improved synthetic sunflower varieties (SYN.-1(A), SYN.-1(B), SYN.-1(C) and SYN.-1(D)) during the years 1994- 1997 at the Experimental and Research Farming of Faculty of Agriculture, Uludağ University. In the first year (1994), the synthetic varieties were obtained by open pollination from the mixture of the inbred lines (SYN.-0(A), SYN.-0(B), SYN.-0(C) and SYN.-0(D)) forming each of the synthetic varieties. In the second, third and fourth years, four synthetic varieties, four mixtures of the inbred lines and two standard varieties (Vniimk-8931 and one commercial hybrid) …
Tolerance To Boron Toxicity Of Maize ( Zea Mays L.) Cultivars Widely Cultivated In Turkey, Aydin Güneş, Mehmet Alpaslan, Hesna Özcan, Yakup Çikili
Tolerance To Boron Toxicity Of Maize ( Zea Mays L.) Cultivars Widely Cultivated In Turkey, Aydin Güneş, Mehmet Alpaslan, Hesna Özcan, Yakup Çikili
Turkish Journal of Agriculture and Forestry
Boron tolerance of the following maize cultivars, Furio, Riogrande, Sele, DK 743, Helix, Missouri, Betor and Poker, was investigated. The experiment was carried out under greenhouse conditions. Boron was applied to the soil at 0, 10 and 30 mg kg -1 levels as H 3 BO 3 . Fresh and dry weights and B concentration and B uptake of the plants were determined at the end of the experiment. Boron tolerance of the corn cultivars was determined from the relationships between fresh and dry weights and B concentration and B uptake rates. According to the results, B tolerance of cultivars …
Determination Of The Effects Of Different Irrigation Programs On Water Consumption In Different Soil Layers And Root Growth Of Cotton, Ahmet Ertek, Riza Kanber
Determination Of The Effects Of Different Irrigation Programs On Water Consumption In Different Soil Layers And Root Growth Of Cotton, Ahmet Ertek, Riza Kanber
Turkish Journal of Agriculture and Forestry
This study was conducted to determine of the effects of different irrigation programs on water consumption in different soil depths and root growth of cotton. The amount of irrigation water applied was based on free water surface evaporation from a screened Class-A Pan. Irrigation treatments consisted two different irrigation intervals (I1: 5; I2: 10 days), and three plant-pan cofficients (Kcp1: 0.75, Kcp2: 0.90, Kcp3: 1.05) and two different wetted percentages (P1: 0.70 and P2: based on cover percentage of crop). According to results it was determined that plant water consumption of 42% and root growth of 65% were in 30 …
Determination Of The Amount Of Irrigation Water And Interval For Cotton With The Pan-Evaporation Method, Ahmet Ertek, Riza Kanber
Determination Of The Amount Of Irrigation Water And Interval For Cotton With The Pan-Evaporation Method, Ahmet Ertek, Riza Kanber
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the amount of irrigation water and interval of cotton irrigated by the drip system with the pan-evaporation method. The amount of irrigation water applied was based on free surface evaporation from a screened Class-A Pan. Irrigation treatments consisted of two different irrigation intervals (I1: 5; I2: 10 days), and three plant-pan coefficients (Kcp1: 0.75, Kcp2: 0.90, Kcp3: 1.05) and two different wetted percentages (P1: 0.70 and P2: based on the cover percentage of the crop). According to the results, seasonal irrigation water varied from 322 to 472 mm; seasonal Et was 449 to 615 …
Effect Of Different Improvement Methods On Yield And Botanical Composition Of Natural Pasture In Salur Village Of Ladik Town, İbrahi̇m Aydin, Ferat Uzun
Effect Of Different Improvement Methods On Yield And Botanical Composition Of Natural Pasture In Salur Village Of Ladik Town, İbrahi̇m Aydin, Ferat Uzun
Turkish Journal of Agriculture and Forestry
This research was conducted to determine the most suitable improvement methods applicable in pastures of the central Black Sea Region. A natural pasture in Salur Village of Ladik Town was used. Fertilizer (10 kg/da N+8 kg/da P 2 0 5 ), soil aeration, herbicide, broadcast seeding, deep cutting and some combinations of them were chosen and applied as pasture improvement methods in 1996-1998. The results indicated that deep cutting and herbicide application had different effects on hay and protein yields according to year. None of the methods affected the botanical composition of the pasture. Hay yield and botanical composition of …
An Investigation On The Weed Distribution In Some Agricultural Fields Of Eskişehir And Environs, Cengi̇z Türe, Yavuz Bülent Köse
An Investigation On The Weed Distribution In Some Agricultural Fields Of Eskişehir And Environs, Cengi̇z Türe, Yavuz Bülent Köse
Turkish Journal of Agriculture and Forestry
In this study, the flora of the weeds, which is one of the most important factors adversely affecting agricultural production in Eskişehir and environs, was investigated. In the study area, 75 genera, 91 species and subspecies belonging to 32 families were determined. The Asteraceae (Compositae)family was found to have the largest number of taxa in the study area. Phytogeographical distribution of plants shows that the most commonly found element was Irano-Turanian (4.3%). It was found that 39% of the described taxa were distributed in wheat fields, 25 % in beet fields, 14 % in clover fields and 12 % of …
Effects Of Different Levels Of Nitrogen On Some Characters Of Datura Collected From Samsun Environs, Enver Esendal, Kudret Kevseroğlu, Seli̇m Aytaç, Gülen Özyazici
Effects Of Different Levels Of Nitrogen On Some Characters Of Datura Collected From Samsun Environs, Enver Esendal, Kudret Kevseroğlu, Seli̇m Aytaç, Gülen Özyazici
Turkish Journal of Agriculture and Forestry
Seeds of datura plants ( Datura stramonium L.) were collected from three different locations (Kurupelit, Vadiler Sitesi and Gelemen) and examined at different nitrogen levels (0, 50, 100, 150 and 200 kg N/ha) for two years (1993 and 1994) in the Kurupelit Campus area of O.M.U., Samsun, Black Sea coastal area. The field experiments were conducted in a split-plot randomized block design with three replications. The highest fresh and medicinal herb yields were obtained by application of 150 kg of nitrogen per hectare, and seed yield was increased by increased nitrogen application levels. Therefore, it may be necessary to test …
Effects Of Plant Populations And Nitrogen Doses On Fresh Ear Yield And Yield Components Of Sweet Corn (Zea Mays Saccharata Sturt.) Grown Under Bursa Conditions, İlhan Turgut
Turkish Journal of Agriculture and Forestry
This research was carried out under Bursa conditions in 1995 and 1997. In this study, the effects of plant population and nitrogen doses on the fresh ear yield and some yield components in the hybrid variety Merit were investigated. Row spacing was constant and distances within rows of 10, 15, 20, 25, 30 and 35 cm were used. Five nitrogen doses (0, 100, 200, 300 and 400 kg N/ha) were also applied. According to the mean of two year results, the effects of plant population and nitrogen doses were found to be statistically significant in ear height, ear diameter, seed …
Agronomic And Technological Properties Of Coriander ( Coriandrum Sativum L.) Populations Planted On Different Dates, Nermi̇n Kaya, Güngör Yilmaz, İsa Telci̇
Agronomic And Technological Properties Of Coriander ( Coriandrum Sativum L.) Populations Planted On Different Dates, Nermi̇n Kaya, Güngör Yilmaz, İsa Telci̇
Turkish Journal of Agriculture and Forestry
This research was conducted to determine suitable sowing dates and the potential productivity of coriander (Coriandrum sativumL.), grown in the Mardin, Denizli and Erzurum districts, at Tokat ecological conditions in 1997 and 1998 vegetation periods. Three local populations from Mardin, Denizli and Erzurum were sown on four different dates (1 November, 1 March, 15 March and 1 April). The highest seed yield was obtained from the Erzurum population as 908 kg/ha. The greatest essential oil ratio was recorded from the Denizli population with 0.39%. Linalool which is main component of coriander essential oil varied from 50.52- 92.52. Plant height (48.6-73.2 …
The Effects Of Different Pruning Methods And Height Of Fruit Setting On Plant Growth, Yield And Fruit Quality Of Melons Grown In Greenhouses, Ni̇lgün Uygun, Nebahat Sari
The Effects Of Different Pruning Methods And Height Of Fruit Setting On Plant Growth, Yield And Fruit Quality Of Melons Grown In Greenhouses, Ni̇lgün Uygun, Nebahat Sari
Turkish Journal of Agriculture and Forestry
This research was carried out to determine the effects of different pruning methods and height of fruit setting in greenhouse melon production for two years. The first year, the Makdimon F1 variety was used, the second year Galia H5 F1 and Deltex F1 varieties were also tested. The first year the plants were pruned as (a) young plants were stopped after the second leaf and the strongest branch was left as the main stem (top shoot pruning) and (b) control (non-pruned). In both treatments the heights of fruit setting were 30 and 60 cm. In the second year, two stems …
Determination Of The Mechanization Level For Forestry Operations By Linear Programming, Altay Uğur Gül, Hafiz Hulusi̇ Acar, Özgür Topalak
Determination Of The Mechanization Level For Forestry Operations By Linear Programming, Altay Uğur Gül, Hafiz Hulusi̇ Acar, Özgür Topalak
Turkish Journal of Agriculture and Forestry
Forestry operations take place under various variables and partly uncontrolled factors. The lack of mechanization level and its application cause quantity and quality losses during production. In this study, seven different production methods were used for felling, logging and barking to determine the best of production method for the Kale region. Seven different models were set up and solved by linear programming for this purpose. Each of these solutions were used with different production methods. Model 1 had the lowest production cost ($290779.5) in the other models and production method 6 was chosen in this model. Thus, felling, logging and …
Minimization Of The Transport Costs In Forestry By Linear Programing, Hafiz Hulusi̇ Acar, Altay Uğur Gül, Selçuk Gümüş
Minimization Of The Transport Costs In Forestry By Linear Programing, Hafiz Hulusi̇ Acar, Altay Uğur Gül, Selçuk Gümüş
Turkish Journal of Agriculture and Forestry
In forest management, transportation is a rather difficult, expensive and time-consuming activity. Transportation of logs from the forest to the landings has been achieved in various ways. Log transportation with minimum losses of quality and quantity and with minimum damage to the environment is a crucial matter in Turkey. The operation research methods for log operations have not been used in Turkey. The aim of this study was to minimize the total cost during logging operations by linear programming. Thirteen different models were set up and solved for minimization of total cost. Model 4 constituted the minimum cost. The minimum …
The Combining Abilities Of Some Barley ( Hordeum Vulgarel.) Genotypes Under Saline Conditions, Riza Yilmaz, Cahi̇t Konak
The Combining Abilities Of Some Barley ( Hordeum Vulgarel.) Genotypes Under Saline Conditions, Riza Yilmaz, Cahi̇t Konak
Turkish Journal of Agriculture and Forestry
The salt tolerance of eight barley genotypes and their 15 F1 hybrid populations were investigated in line x tester analysis for seedling traits in greenhouse and generative stage characteristics in saline fields. The data indicated that there was sufficient genetic variability among genotypes for salt tolerance in barley. The MENTA "S" genotype for general combining ability and Tokak 157/37 x ZARZA "S", Quantum x No.56000/MISC-233 and Kaya-7794 x ZARZA "S" crosses for specific combining ability had positive and significant estimates both in greenhouse and field conditions. It was determined that spike length, number of grain per spike, single spike yield, …
An Analysis Of Import Demand For Dairy Products In Turkey, Osman Karkacier
An Analysis Of Import Demand For Dairy Products In Turkey, Osman Karkacier
Turkish Journal of Agriculture and Forestry
This study analyzes the impacts of economic factors on import demand for dairy products. The import demand pattern for dairy products in Turkey is influenced by changes in the world's dairy products market and government livestock programs and policies. Turkey's import demand for dairy products is specified as a function of domestic prices, GNP (Gross National Product) per capita, lagged imports, Turkish Lira-US Dollar exchange rate and trend factor. Regression analysis was employed to estimate equation parameters. Analysis was based on annual data for 1982-1997. Turkey's import demand for dairy products were influenced mostly by GNP per capita, domestic prices …
Effect Of Potassium And Magnesium Fertilization On Yield And Nutrient Content Of Rice Crop Grown On Artificial Siltation Soil, Abdülreşi̇t Brahi̇, M. Rüştü Karaman, M. Turgut Topbaş, Ari̇f Aktaş, Erdi̇nç Savaşli
Effect Of Potassium And Magnesium Fertilization On Yield And Nutrient Content Of Rice Crop Grown On Artificial Siltation Soil, Abdülreşi̇t Brahi̇, M. Rüştü Karaman, M. Turgut Topbaş, Ari̇f Aktaş, Erdi̇nç Savaşli
Turkish Journal of Agriculture and Forestry
The main purpose of this study was to determine the effect of potassium and magnesium fertilization on the yield and N, P, K, Mg, Fe, Cu, Zn, Mn contents of rice crop grown on soil used for cultivation after siltation from the Kelkit River. The experiment was carried out in a randomised block design with 4 replications, using Riba rice grown in pots containing 5 kg of soil. Potassium, K 2 SO 4 , at 0, 20, 40, 60 and 80 kg K 2 O/ha and magnesium, MgO, at 0, 20, 40, 60 and 80 Mg/ha were applied before sowing. …
The Effect Of Compaction On Urease Enzyme Activity, Carbon Dioxide Evaluation And Nitrogen Mineralisation, Ayten Karaca, Abdullah Baran, Koray Haktanir
The Effect Of Compaction On Urease Enzyme Activity, Carbon Dioxide Evaluation And Nitrogen Mineralisation, Ayten Karaca, Abdullah Baran, Koray Haktanir
Turkish Journal of Agriculture and Forestry
The effects of compaction on urease enzyme activity, carbon dioxide evaluation and nitrogen mineralisation of urea-treated and untreated soils were investigated. Soils were compacted at compaction levels of O kgcm -2 , 2 kgcm -2 and 4 kgcm -2 and incubated for 28 days. The changes in urease enzyme activity, CO 2 evaluation and nitrogen mineralization were determined during incubation periods. Urease enzyme activity was decreased significantly (P
Impacts Of Turkey's Integration Into The European Union On Agriculture In The Post-Uruguay Round Environment, Cemal Atici, P. Lynn Kennedy
Impacts Of Turkey's Integration Into The European Union On Agriculture In The Post-Uruguay Round Environment, Cemal Atici, P. Lynn Kennedy
Turkish Journal of Agriculture and Forestry
Agricultural trade policies between Turkey and the European Union are modeled using a political preference function (PPF). The PPF is used to estimate the producer and consumer weights perceived by policy makers. The agricultural effects of Turkey's integration into the European Union (EU) and optimal strategies for Turkey and the EU are analyzed Results show that Turkey' s PPF values will be lower, with respect to agriculture, when it joins the EU; however, EU trade liberalization benefits Turkey.
Comparison Of The Swelling And Shrinkage Characteristics Of Corcisan Pine (Pinus Nigra Var. Mantima), İlker Usta, Ari̇f Güray
Comparison Of The Swelling And Shrinkage Characteristics Of Corcisan Pine (Pinus Nigra Var. Mantima), İlker Usta, Ari̇f Güray
Turkish Journal of Agriculture and Forestry
The objective of this study was to determine the volumetric swelling and shrinkage characteristics of air-dried Corsican pine in the longitudinal, tangential and radial directions. For this purpose, the swelling of the wood was caused by the wood being increased in water whilst placed in a swelling jig, and the shrinkage made in an oven by drying. The experimental results showed that although the differences in swelling or shrinking occur in the first 5 hours, both swelling and shrinkage are then negligible in the three directions. The values of swelling-shrinkage showed considerable difference among different directions; for instance, swelling-shrinkage in …