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Full-Text Articles in Forest Sciences
The Effect Of Organic And Chemical Fertilizers On The Activity Of Soil Enzymes In Soils Of Different Compositions, Elif Yağanoğlu, Adi̇l Aydin
The Effect Of Organic And Chemical Fertilizers On The Activity Of Soil Enzymes In Soils Of Different Compositions, Elif Yağanoğlu, Adi̇l Aydin
Turkish Journal of Agriculture and Forestry
In this study, the effects of chemical (20:20:0 compound) and organic (barnyard) fertilizers applied to different textured soils on several soil enzyme (urease, acid phosphatase, alkaline phosphatase, and dehydrogenase) activities were investigated. The research was conducted under greenhouse conditions with (beans and corn) and without crops. Considering the results of the preexperiment analysis of the soils, a 40-g pot–1 of farmyard manure was placed into the pots in which organic fertilizer would be applied in clay and silty loam soils, and a 50-g pot–1 of farmyard manure was added to sandy loam soil; in addition, a 0.25-g pot–1 of 20:20:0 …
Tree Biomass – A Fragile Carbon Storage In Old-Growth Birch And Aspen Stands In Hemiboreal Latvia, Laura Ķēniņa, Didzis Elferts, Ieva Jaunslaviete, Endijs Bāders, Guntars Šņepsts, Āris Jansons
Tree Biomass – A Fragile Carbon Storage In Old-Growth Birch And Aspen Stands In Hemiboreal Latvia, Laura Ķēniņa, Didzis Elferts, Ieva Jaunslaviete, Endijs Bāders, Guntars Šņepsts, Āris Jansons
Aspen Bibliography
Birch (Betula pendula Roth, Betula pubescens Ehrh.) and European aspen (Populus tremula L.) stands dominate the deciduous forests of Northern Europe. Due to increasing forest protections, more deciduous stands will reach the old-growth stage. Thus, data on the carbon storage potential in such areas are essential. We aimed to establish a benchmark for carbon stocks of the main carbon pools in old-growth deciduous hemiboreal stands. Carbon pools were calculated from measurements in forty old-growth (104–148 years-old) deciduous stands in forests on fertile mineral soil. The carbon stock in these stands is distributed across tree biomass (~ 60%), mineral soil (~ …
The Effects Of Increasing Doses Of Nickel And Lead Applications On Some Oriental Tobacco Varieties, Mahmut Tepeci̇k, Mehmet Eşref İrget
The Effects Of Increasing Doses Of Nickel And Lead Applications On Some Oriental Tobacco Varieties, Mahmut Tepeci̇k, Mehmet Eşref İrget
Turkish Journal of Agriculture and Forestry
Heavy metals are hazardous pollutants for humans, animals and plants, when their threshold concentration exceeds. Tobacco can accumulate higher concentrations of heavy metals, and the genotypic differences of tobacco in heavy metal uptake and their growth responses have not been clearly examined. In this study, the effects of nickel (Ni) and lead (Pb) on phytoremediation capabilities were tested in four local Oriental tobacco cultivars (Basma, Akhisar, Sarıbağlar and Dibek). In two pot experiments, nitrogen (N), phosphorus (P) and potassium (P) were applied in fıxed doses, while Pb and Ni were applied at 4 different doses (10, 50, 100 and 150 …
Mineralogical And Micromorphological Characteristics Of Red Pineand Oak Root Zone Soils In Southern Turkey, Somayyeh Razzaghi, Nadia Vignozzi, Selim Kapur
Mineralogical And Micromorphological Characteristics Of Red Pineand Oak Root Zone Soils In Southern Turkey, Somayyeh Razzaghi, Nadia Vignozzi, Selim Kapur
Turkish Journal of Agriculture and Forestry
Plant species exert differential effects on soil mineralogical and micromorphological characteristics. The effect of red pine and oak tree roots on the mineralogical and micromorphological characteristics of rhizosphere soils in two sampling sites in the Göksu catchment was studied. The climate, topography, and bedrock conditions were kept consistent, whereas the plant factor was kept as the only variable in each site. Rhizosphere soils under the canopies of 100 years old and naturally occurring trees were compared via macromorphology, submicroscopy, mineralogy, and physical and chemical properties. The soils of red pine (RP1 and RP2 profiles) were determined to have higher porosity …
Antioxidant Capacity Of Oilseed Rape (Brassica Napus) In Different Soil Types, Dusica Jovicic, Jovica Vasin, Zorica Nikolic, Gordana Petrovic, Gordana Tamindzic, Maja Ignjatov, Dragana Milosevic
Antioxidant Capacity Of Oilseed Rape (Brassica Napus) In Different Soil Types, Dusica Jovicic, Jovica Vasin, Zorica Nikolic, Gordana Petrovic, Gordana Tamindzic, Maja Ignjatov, Dragana Milosevic
Turkish Journal of Agriculture and Forestry
This work considers the results obtained by testing the parameters of antioxidant status in leaves and roots of oilseed rape at different growth stages (phase I: formation of leaf rosettes and preparing for winter hibernation; phase II: after the winter hibernation; phase III: flowering) grown in semicontrolled field conditions on different soil types. The experiment was conducted on four oilseed rape genotypes (Banacanka, Jasna, Kata, and Zlatna) in semicontrolled conditions in containers with three soil types: chernozem, solonetz, and solonchak. The germination failed on solonchak due to the excessive amount of salt, but results were obtained for plant material on …
Impacts Of Two Spatially And Temporally Isolated Anthropogenic Fire Eventson Soils Of Oak-Dominated Zagros Forests Of Iran, Javad Mirzaei
Impacts Of Two Spatially And Temporally Isolated Anthropogenic Fire Eventson Soils Of Oak-Dominated Zagros Forests Of Iran, Javad Mirzaei
Turkish Journal of Agriculture and Forestry
Anthropogenic fires have varying effects on the oak-dominated forests of the Zagros Mountains in western Iran. The objective of this project was to investigate the effects of fire on various components of soil. For this purpose three homogeneous and neighboring sites were inspected. Site A was the unburned control. Sites B and C experienced fires about 2 and 8 years prior to the study, respectively. In comparison to the control, site B showed a decline in organic matter content (1.69 ± 0.24 vs. 1.13 ± 0.17), N amount (0.40 ± 0.05 vs. 0.19 ± 0.03), litter depth (1.20 ± 0.214 …
Short-Term Changes Of Leaf Area Index, Light Transmission, And Gap In A Temperate Mixed Deciduous Forest Ecosystem In Bartın, Turkey, İlyas Bolat, Ömer Kara, Meli̇h Öztürk
Short-Term Changes Of Leaf Area Index, Light Transmission, And Gap In A Temperate Mixed Deciduous Forest Ecosystem In Bartın, Turkey, İlyas Bolat, Ömer Kara, Meli̇h Öztürk
Turkish Journal of Agriculture and Forestry
In this study, leaf area index (LAI), light transmission, and gap were estimated by using the hemispherical photograph analysis technique with Hemisfer software version 1.5.3 for a temperate mixed deciduous forest. The height of the overall vegetation in the stand ranged from 15 to 20 m, and the diameters of the trees in the stand at breast height varied between 14 and 28 cm. This study showed that the mean value of LAI increased by 4% in the 5-year period from 2007 to 2012. LAI was significantly (P < 0.05) greater in 2012 than in 2007, whereas the mean percentage of light transmission was significantly lower in 2012 than it was in 2007. In addition, there was a significant (P < 0.01) correlation between LAI and light transmission, and there was also a statistically significant correlation between the gap and light transmission (P < 0.05). According to long-term meteorological data (1982-2012), this study also demonstrated that the mean air temperature rose approximately 1.0 °C between 2007 and 2012. Consequently, this study indicated that LAI varies with respect to time and the increase of LAI leads to a decrease in light transmission. Additionally, the air temperature and precipitation have a significant influence on the LAI.
Biodegradation Of Used Engine Oil In A Wastewater Sludge-Amended Agricultural Soil, Efsun Di̇ndar, Fatma Olcay Topaç Şağban, Hüseyi̇n Savaş Başkaya
Biodegradation Of Used Engine Oil In A Wastewater Sludge-Amended Agricultural Soil, Efsun Di̇ndar, Fatma Olcay Topaç Şağban, Hüseyi̇n Savaş Başkaya
Turkish Journal of Agriculture and Forestry
Soil contamination by used engine oil is a common occurrence in most developing countries. This has been shown to have harmful effects on the environment and human beings at large. Used oils are considered to be hazardous waste materials. These are composed of toxic chemicals, such as heavy metals (which come from additives and wear and tear of engine parts), combustion products, light hydrocarbons, polar compounds, uninuclear and polynuclear aromatic compounds, resinous materials, and organometallic compounds. Some of these pollutants are carcinogenic in nature. The objective of this study was to evaluate the effects of used engine oil (doses of …
Isolation And Characterization Of Native Bacillus Thuringiensis Isolates From Syrian Soil And Testing Of Their Insecticidal Activities Against Some Insect Pests, Hassan Ammouneh, Muhand Harba, Emad Idris, Hayat Makee
Isolation And Characterization Of Native Bacillus Thuringiensis Isolates From Syrian Soil And Testing Of Their Insecticidal Activities Against Some Insect Pests, Hassan Ammouneh, Muhand Harba, Emad Idris, Hayat Makee
Turkish Journal of Agriculture and Forestry
Bacillus thuringiensis was detected in 12.5% of soil samples collected from different regions in Syria and 25 B. thuringiensis isolates were found to be highly toxic to larvae of Ephestia kuehniella Zeller, Phthorimaea operculella Zeller, and Cydia pomonella L. (Lepidoptera), but not to the larvae of Culex quinquefasciatus (Diptera). Light microscopy investigation showed the presence of bipyramidal and cuboidal parasporal bodies produced by these isolates. The existence of different cry genes in the tested isolates was studied using a PCR strategy with a set of general primers recognizing some of the cry genes reported in the relevant literature. Primers corresponding …
Pathogen Reduction Effects Of Solar Drying And Soil Application In Sewage Sludge, Nurtaç Öğleni̇, Sai̇m Özdemi̇r
Pathogen Reduction Effects Of Solar Drying And Soil Application In Sewage Sludge, Nurtaç Öğleni̇, Sai̇m Özdemi̇r
Turkish Journal of Agriculture and Forestry
The responses of sludge faecal coliforms, Salmonella, and Ascaris lumbricoides to heat drying, solar dehydration, and inactivation in soil are examined in this study. The presence of Salmonella in raw sludge cake after treatment was low, and absent for most of the cases. Likewise, the viable Ascaris eggs were not determined because of absent or low prevalence. Faecal coliforms, on the other hand, drastically decreased from 4.2 × 10^7 MPN g^{-1} Dry Solid (DS) to absence by heat drying. Faecal coliform numbers in solar and non-solar drying treatments were not declined below 1.0 × 10^3 MPN g^{-1} after drying to …
Determination Of The Effects Of Hazelnut Husk And Tea Waste Treatments On Urease Enzyme Activity And Its Kinetics In Soil, Ridvan Kizilkaya, İmanverdi̇ Ekberli̇
Determination Of The Effects Of Hazelnut Husk And Tea Waste Treatments On Urease Enzyme Activity And Its Kinetics In Soil, Ridvan Kizilkaya, İmanverdi̇ Ekberli̇
Turkish Journal of Agriculture and Forestry
In this research, the effects of 5% treatment of hazelnut husk (HH) and tea production waste (TEW) to clay loam soil on urease enzyme activity and its kinetics were determined in a 30-day soil incubation experiment. For this purpose, kinetic parameters (V_{max}, K_m, and V_{max}/K_m,) were calculated by determining urease activity in organic wastes treated soils in different substrate concentrations (0%, 1%, 2%, 4%, 6%, 8%, 10%, and 12%), incubation periods (0, 1, 2, 3, 4, 5 and 6 h), and incubation temperatures (0, 10, 20, 30, 40, and 50 °C) at the end of the 30 days of the …
The Effect Of Different Land Uses On Soil Microbial Biomass Carbon And Nitrogen In Bartın Province, Ömer Kara, İlyas Bolat
The Effect Of Different Land Uses On Soil Microbial Biomass Carbon And Nitrogen In Bartın Province, Ömer Kara, İlyas Bolat
Turkish Journal of Agriculture and Forestry
The microbial biomass of soil is being increasingly recognized as a sensitive indicator of soil quality. Its knowledge is fundamental for sustainable environmental management. This study aimed to determine the impact of different land uses (forest, pasture, and agricultural lands) on soil microbial biomass carbon and nitrogen using the chloroform fumigation extraction (CFE) method. This study also aimed to determine interrelationships between microbial biomass C (C_{mic}) and N (N_{mic}) and the physico-chemical characteristics of the soil. For this purpose, a total of 45 soil samples were taken from 3 different land uses located in the Ağdacı Village in Bartın. Additional …