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Impact of Long Term Phosphorus Doses Application on Soil Carbon, Nitrogen and Phosphorus Concentration Texto completo
2020
Mehmet Işık | Feyzullah Öztürk | Veysi Akşahin | Berna Demirkol | İbrahim Ortaş
The aim of study is to investigate; the effect of increasing several doses P application on soil C, N and P concentration in Long term experiment conditions. Tested hypothesis; increasing P doses application increases soil C, N and P concentration, consequently plant yield can increase. The experiment has establish at University of Çukurova, Faculty of Agriculture, Research and Application field on Arık soil series from since 1998 until update. Four doses of P applied; such as 0 kg P2O5 ha-1 (P0), 50 kg P2O5 ha-1 (P50), 100 kg P2O5 ha-1 (P100) and 200 kg P2O5 ha-1 (P200) with tree replications. Under rain fed condition Adana-99 species wheat (Triticum aestivum L.) seeds were sown in November 2017 and harvested at May 2018. Soil samples were taken at different depth (0-15 cm and 15-30 cm) of rhizosphere and non-rhizosphere part at harvest. Soil P concentrations, organic C (OC), inorganic C (IC), soil total carbon C and N were analyzed. Result shown that there is a statistically difference as P concentration, especially in both depth of rhizosphere and non-rhizosphere soils, the best application is P200 compared to the control. As the P dose increased, also soil P content increased linearly. In terms of soil OC content, there was a statistically significant difference at a depth of 15-30 cm in rhizosphere and non-rhizosphere soils and, the best practice was got at P200 application compared to control treatment. In addition, due to increasing doses of P application, the mean soil OC, total N and C content increased. The founded results are support our hypothesis.
Mostrar más [+] Menos [-]Producing Hydrogen Gas from Organic Wastes Released by Agricultural Activities Texto completo
2020
Furkan Baş | Burak Şen | Mehmet Fatih Kaya
The world’s population is increasing day by day, and the need of the energy and food is increasing at the same rate. As it is known, facilities which engaged in agricultural activities take a large share of the world’s industrial pie, so the pollution sparked by the activities of these industries is also uncondescending. Energy production from organic wastes exposed as a result of agricultural activities is an important working area; damage to the environment will also be reduced by the recovery of the wastes. In this study, hydrogen gas production from organic wastes released by agricultural activities will be demonstrated. In addition, literature review on the state of hydrogen energy from organic wastes in the world and in Turkey will be carried out.
Mostrar más [+] Menos [-]The Effect of Leaf Applications “Bio-fertilizers” on Yield and Some Yield Components of Wheat at Different Development Periods Texto completo
2020
Hayati Aslan | Hatun Barut | Sait Aykanat | Enis G Hekimoğlu
This study was conducted to determine the effects of “biofertilizers” (N 8%, P2O5 1%, 9% K2O, 3% Iron, 0.06% Zinc, Bacillus subtilis (GBO3), Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens ve Bacillus pumilus) eaf applications on yield and quality parameters of bread wheat at different developmental stages. The experiment carried out for this purpose was conducted in the wheat sowing seasons of 2017-2018 and 2018-2019 at Doğankent location of the Eastern Mediterranean Agricultural Research Institute. In this research, “biofertilizers” leaf applications were applied to the wheat in different stages of development. For this purpose, 4 themes were worked out as; control, tillering, tillering + stem elengation and stem elengation. Biofertilizers doses of 100 gr/da in the first year and 0.75 gr/da in the second year were investigated. As a basic fertilizer for all experiment subjects; 15 kg DAP per decar were given during sowing period and 29 kg Urea during the tillering period, as a result of the research carried out; using biofertilizers in wheat farming, both in tillering and stem elengation periods, increased the yield 12.67% more efficiency in the first year and 13.16% more in the second year than the control subject. There were no statistically significant effects on quality parameters of wheat by using “biofertilizers” in foliar applications.
Mostrar más [+] Menos [-]Projections of the Effects of Climate Changes on Temperature Differences in Some Cities; Example of Ankara, Kars, Aydın and Sinop Provinces Texto completo
2020
Hayati Gönültaş | Halil Kızılaslan | Nuray Kızılaslan
Today, the effects of climate change in the world are manifest in all its reality. These changes were being affected Turkey as well as the world, regions and provinces leads to a difference in some. In this study, projections of 10, 15 and 20 and 50 years of future maximum averages have been made according to the provinces in some regions by using the maximum average datas of the past 50 years of Ankara, Kars, Aydın and Sinop provinces selected especially from different regions to evaluate the climatic changes. According to the results of the analysis, the total average temperature data between 1966-2015 was 17.90°C in Ankara, Kars 11.69°C, Aydın 24.50°C and Sinop average temperature was 17.28°C When compared in 2016-2065 projections, it is seen that there will be changes in average temperatures in parallel with climate change. In Northeastern Anatolia, the highest temperature increase is foreseen with 3.45°C, followed by Sinop, a Black Sea province, with 1.99°C. Ankara, which has a continental climate of Central Anatolia, is estimated to be 1.77°C and it is thought that the Aegean province Aydın will be exposed to a temperature increase of 1.55°C at the lowest rate. Other forecasts are predicted to have the highest temperature changes in Kars and Aydın’s minimum temperature changes. The detection of temperature changes in the study is considered to be important in terms of planning agricultural activities accordingly as well as regulating urbanization and water use and taking measures.
Mostrar más [+] Menos [-]Insecticidal Activities of Four Native Entomopathogenic Fungus Beauveria bassiana Bals. (Vuill) Isolates Against Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) Adults Under Laboratory Conditions Texto completo
2020
Seher Uçar | Turgut Atay | Yusuf Yanar
In this work, control capacity of the four isolates (GN22-1, HP15, HP5-2, HP3-1) of entomopathogenic fungus Beauveria bassiana Bals. (Vuill) were evaluated against Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) adults under laboratory conditions. To test the effect of each of the isolate on adults of T. castaneum were dipped into 1×108 conidia/ml suspension of each isolate. The data for mortality was recorded after 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th, 21st, and 23rd day. Thirteen days after application, isolates were listed as GN22-1 (72.85%), HP3-1 (48.88%), HP15 (47.37%) and HP5-2 (30.43%) based on the mortality rate they caused. Mortality rate was 83.52% at the end of the 23rd day with isolate GN22-1. While HP3-1 (53.74%) and HP15 (52.24%) caused more than 50% effect at the end of 23 days incubation period, the effect of HP5-2 remained only 32.51%. In addition, LT50 and LT90 rates were also determined. We arrive to the conclusion that especially GN22-1 isolate can has a potential in the control of this insect and may serve an alternative to chemical insecticides.
Mostrar más [+] Menos [-]Influence of Conventional Fermentation on Antioxidant Activity and Phenolic Contents of Two Common Dairy Products: Yogurt and Kefir Texto completo
2020
Bilge Taşkın | Neriman Bağdatlıoğlu
During conventional fermentation of milk into yogurt and kefir, changes of antioxidant capacities (DPPH radical scavenging, ferrous chelating, reducing power, hydrogen peroxide/ H2O2 scavenging activity) and total phenolic content were investigated. Both products showed greater phenolic content, DPPH radical scavenging, and reducing power activities than was the case of their unfermented milk forms. But they were unable to scavenge H2O2. Chelating ability of milk increased by yogurt fermentation but decreased by kefir fermentation. In general, antioxidative capacity of milk improved throughout conventional yogurt and kefir fermentations and ripening periods (except chelating ability for kefir and H2O2 scavenging). This study is valuable since it evaluates the antioxidant power of yogurt and kefir produced by traditional fermentation with 5 different antioxidative approaches. In face of rapidly rising consumer demand for safe, healthy, functional but natural foods, revealed results might strengthen importance of conventional fermentation process and highlight the antioxidative contributions of mentioned products
Mostrar más [+] Menos [-]Türkiye’de Sığır Eti Üretici Fiyatı Oluşumunda Etkili Olan Faktörler Texto completo
2020
Yurdakul Saçlı
Türkiye’de Sığır Eti Üretici Fiyatı Oluşumunda Etkili Olan Faktörler Texto completo
2020
Yurdakul Saçlı
İnsan sağlığı açısından başlıca hayvansal protein kaynaklarından olan kırmızı etin yeterli miktarda ve düzenli olarak tüketilmesi elzemdir. Türkiye’deki kişi başı kırmızı et tüketimi dünya ortalamasının oldukça altındadır. Bunun temel nedeni olarak sığır eti fiyatlarının yüksekliği ve sürekli bir artış eğiliminde olması gösterilmektedir. Ayrıca bu artış, enflasyon üzerinde de önemli baskı oluşturmaktadır. Bu çalışmanın amacı, sığır eti fiyatlarında izlenen artış eğiliminin enflasyon etkisinden arındırılarak üretici açısından değerlendirilmesi ve üretici düzeyinde et fiyatlarındaki artışa etki eden temel faktörlerin tespit edilerek, fiyatlarda istikrarın sağlanmasına yönelik çözüm önerileri geliştirilmesidir. Bu çerçevede, et fiyatlarındaki artışa neden olduğu düşünülen faktörler tespit edilmiş, girdi maliyetleri, ikame-rakip ürün fiyatları ve hayvancılık desteklerinin cari ve reel seyri analiz edilmiş ve sığır eti tüketici ve üretici fiyatları arasındaki ilişki düzeyi tespit edilmiştir. Analiz neticesinde sığır eti fiyatlarındaki artışın temel olarak, et üretiminin yetersiz olması nedeniyle oluşan talebin karşılanamamasından kaynaklandığı ve süt fiyatları ile sığır eti üretici fiyatları arasında kuvvetli bağlantı bulunduğu saptanmıştır. Buna göre, kırmızı et fiyatlarında istikrarın sağlanması için öncelikli olarak et üretiminin artırılması, buna yönelik olarak etçi tip besi hayvancılığının geliştirilmesi ve besi materyalinin yurtiçinde üretimi ile hayvan varlığının yeterli düzeye çıkarılması, pazarlama zincirinin kısaltılarak denetim altına alınması, hayvancılık politikalarının uzun vadeli ve planlı şekilde belirlenmesi ile et ve süt ilişkisi göz ardı edilmeden doğru ve etkin bir destek mekanizması oluşturulması gerekmektedir.
Mostrar más [+] Menos [-]Determinación de la condición fisiológica de la semilla de Capsicum spp y efecto del método de secado para su almacenamiento. Texto completo
2004
Bonilla, E. | Cardozo, C. I. | García, M. A.
Semillas del género Capsicum se caracterizaron fisiológicamente. Basados en datos de viabilidad y germinación se estimó la tolerancia a la desecación y conservación por lo cual se estableció la condición ortodoxa de las semillas. Sin embargo, se destaca la importancia de la variable vigor, que permitió establecer diferencias entre las especies respecto de su longevidad y deducir que los contenidos de humedad de 10% y 7.5% y temperatura de 10°C admiten mayor capacidad de conservación. Los cuatro métodos de secado (secado artificial, sílica gel, sol y sombra) y los dos sistemas de ambiente controlado no presentaron diferencias significativas en viabilidad. Se detectaron niveles moderados de latencia en las semillas que pudieron interferir en la interpretación de los resultados. Palabras claves: C. annuum, C. frutescens, C. baccatum, viabilidad, germinación. ABSTRACT Determination of physiological status of Capsicum spp seed and efect of the dry method for storage. Capsicum spp seeds was physiologycal characterizated. Based on data of viability and germination to estimate the tolerance to drying and conservation, the orthodox condition of the seeds could be established. Nevertheless, the importance of the variable vigor stands out, that allowed to establish differences between the species with respect to its longevity, It was settled down that 10 and 7.5% of humidity contents and temperature of 10°C allow greater capacity of conservation. The four methods of seed drying and the capacity of conservation under two different controlled environment systems were not significant differences. Moderate levels of the seed dormancy could be interfered the interpretation of the results. Keywords: C. annuum, C. frutescens, C. baccalum, viability, germination
Mostrar más [+] Menos [-]Determination of Antioxidant Activity and Total Tannin from Drumstick (Moringa oleifera Lam.) Leaves Using Different Solvent Extraction Methods Texto completo
2020
Mohammad Afzal Hossain | Nadia Khan Disha | Jahid Hasan Shourove | Pappu Dey
This study was undertaken to estimate the antioxidant activity and total tannin content of Moringa olifera Lam. (Moringa) leaves and find a suitable extraction condition for maximum yield. Two types of solvent and three different extraction times and temperatures were experimented for extraction. Moringa leaves were oven-dried and powdered to determine the antioxidant activity in terms of total phenolic content (TPC), ferric reducing antioxidant power (FRAP), and DPPH radical scavenging activity and total tannin content. The maximum TPC value noted in methanol extract, and it ranges from 6.46 ± 0.34 g to 3.91±0.19 g gallic acid equivalent (GAE)/100g dry sample (DM). The FRAP values varied from 211.6 ± 3.75 to 344.13 ± 3.26 mg ascorbic acid equivalent (AAE)/100g DM and 166.67 ± 2.90 to 224.93 ± 1.94 mg AAE/100g DM, for methanol and ethanol extract, respectively. The DPPH radical scavenging activity ranged from 46.32 ± 1.07 to 58.09 ± 0.92% for methanol extract and 56.76 ± 1.48% to 69.72 ± 1.15% for ethanol extract. The total tannin content varied from 6.84 ± 0.05 to 10.22 ± 1.11 mg GAE/100 g dry sample and 6.77 ± 0.08 to 9.23 ± 0.51 mg GAE/ 100g DMfor methanol and ethanol extract, respectively. The highest antioxidant yield for methanol and ethanol extract of Moringa leaves differed for various conditions. Overall, Moringa leaves showed excellent antioxidant properties that can be commercially and domestically used.
Mostrar más [+] Menos [-]Compliance of Lebanese Pickling Industry with Lebanese and International Standards Texto completo
2020
Sami Tlais | Hayat Omairi | Ali Al Khatib | Hassan HajjHussein
In light of recent news reporting the use of banned colorants in Lebanese-made pickled turnips exported to the European Union (EU) by the Rapid Alert System of Food and Feed (RASFF), The Lebanese Consumer Protection Association tested samples of pickled turnips being sold to the public and confirmed the use of rhodamine B. Many products were pulled off the market and were replaced with new products that were supposed to be free of any banned colorants. We selected 5 different brands of pickled turnips and tested them for pH, salinity, nitrites, and colorants. We tested the salinity using two methods: evaporation and titration. The concentration of nitrites was tested by absorbency method. The presence of colorants was determined using TLC and absorbency method. We determined that the newly released pickled turnips comply with the rules and regulations adopted by the Lebanese Standards Institution (LIBNOR) and the international standards according to the Codex Alimentarius.
Mostrar más [+] Menos [-]Mathematical Modelling of the Volumetric Efficiency for Fluted Rolls Metering Different Crop Seeds Texto completo
2020
Muhammed Hakan Özdemir | Adnan Değirmencioğlu
The objective of this study was to develop a mathematical model for predicting the volumetric efficiency for fluted rolls metering different crop seeds. A special test stand was designed and manufactured in order to conduct experiments in order to find out the volumetric efficiency of the fluted rolls. In order to meet the above objective, alfalfa, barley, coriander, flax, oat, rye, safflower, sesame and wheat seeds were used. Experiments were conducted at different roll revolutions and roll lengths by considering the seed rate for each crop and the rolls were driven by a step motor as controlled by a software installed on a laptop computer. Five replications were achieved for each experiment and a total of 1660 flow rate data was obtained. Five different models for volumetric efficiency were developed. Analysis based on different goodness of fit criteria were achieved to compare models in to order to select the appropriate one. The study conducted not only resulted in developing volumetric efficiency models but also revealed an important finding based on low flow evenness (low CV, %) values obtained as compared to other studies in the literature.
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