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Sulama Durumu Tahmini için Makine Öğrenimi Algoritmalarının Karşılaştırmalı Analizi Texto completo
2025
Betül Demir | Yeşim Dokuz | Burak Şen
Geleneksel yöntemlere kıyasla, makine öğrenimi ile desteklenen sistemlerin, daha hassas sulama kararları verebildiği tespit edilmiştir. Bu çalışmada, veri bilimi alanında sıkça kullanılan veri paylaşım platformu olan Kaggle’dan faydalanılmıştır. Sulama durumu tahmini için “Weather Data” veri kümesi kullanılmıştır, Veri kümesinde eksik ve aykırı veriler düzeltilmiş, bağımlı (sulama durumu) ve bağımsız (hava sıcaklığı, nemi, toprak nem değeri, yağış durumu) parametreler elde edilmiştir. Güneydoğu Anadolu Bölgesi’ndeki illere (Adıyaman, Batman, Diyarbakır, Gaziantep, Kilis, Mardin, Siirt, Şanlıurfa ve Şırnak) odaklanılarak farklı koşullarda algoritmaların doğrulukları test edilmiştir. Her bir il için ayrı ayrı yapılan analizlerde, makine öğrenimi algoritmalarından Karar Ağaçları, Destek Vektör Makineleri, Rastgele Orman, Naive Bayes, Gradyan Artırma, Lojistik Regresyon, K-En Yakın Komşu ve Yapay Sinir Ağı modelleri kullanılarak sulama durumu tahmini gerçekleştirilmiştir. Veri kümesi üzerinde yapılan tahminler sonucunda algoritmalar, doğruluk (accuracy) metriği kullanılarak karşılaştırılmış ve en etkili algoritmaların Rastgele Orman (%95) ,Karar Ağacı (%97), Gradyan Artırma (%93) ve Yapay Sinir Ağı (%98) modeli ile tüm şehirlerde %90’ın üzerinde sulama durumu tahmini doğruluğu elde edilmiştir. Diğer algoritmalar da yüksek doğruluk oranları ile (%75 üzeri) dikkate değer performans sergilemişlerdir. Her bir il için yapılan analizlerde, algoritma performans sıralamasının benzer olduğu belirlenmiştir. Sonuç olarak, bu çalışma makine öğrenimi algoritmalarının tarımsal sulamada oldukça yüksek bir performansla kullanılabileceğini göstermektedir.
Mostrar más [+] Menos [-]Foliar Application of Folic Acid on Cabbage Seedlings Grown under Restricted Irrigation Conditions Can Alleviate the Negative Effects Texto completo
2025
Raziye Kul
Drought, a critical abiotic stress worsened by climate change, poses a substantial threat to crop production and global food security. White cabbage is classified as a moderately drought-sensitive crop. The function of folic acid, otherwise known as folate, in the plant's response to drought conditions is not yet fully understood. The aim of the study was to evaluate the potential of folic acid in enhancing certain growth parameters and physiological traits of cabbage seedlings under limited irrigation conditions. In this investigation, the effects of FA as a foliar application at 0, 100, and 200 µM (FA0, FA1, and FA2, respectively) were examined on white cabbage seedlings grown under full-irrigation (I0) and restricted irrigation (I1), set to 50% of full capacity irrigation scheme (I0). Drought stress adversely affected the plant growth properties of cabbage seedlings, whereas FA treatments mitigated the adverse effects of drought stress on the plant growth properties of cabbage seedlings. Under restricted irrigation, plants treated with 100 µM FA (FA1) had higher plant height, stem diameter and leaf area, while plants treated with 200 µM FA (FA2) had higher plant dry weight and plant dry matter content. Plant fresh weight increased with FA treatments under restricted irrigation, but no significant difference was observed between doses. On the other hand, leaf relative water content (LRWC), which decreased under restricted irrigation conditions, increased with FA applications regardless of the dose, while electrical conductivity (EC), which increased under the same conditions, decreased with 100 µM FA (FA1) application. Leaf number, root fresh weight, root fresh weight, root dry weight, root dry matter content and chlorophyll value (SPAD) were not affected by FA treatments under both restricted and full irrigation conditions. In conclusion, foliar spray of folic acid in cabbage can be recommended as a potential application to alleviate drought stress.
Mostrar más [+] Menos [-]Assessing Carbon Sequestration in Agroforestry Systems in Churiya Range of Nepal Texto completo
2025
Lilu Kumari Magar | Gandhiv Kafle
Agroforestry is a system that combines household and community level food production ecosystem services along with income security. It has potential of carbon sequestration and puts a positive impact on balancing greenhouse gases. The research was carried out to assess the variability of carbon stock under the agro-forestry systems in Churiya range at Rakshirang Rural Municipality of Makwanpur district of Nepal. Thirty households were sampled for this study; ten households from each of three different systems namely, Agrisilviculture, Silvopasture and Homegarden for data collection. Simple random sampling was used for the sample plot selection from the selected agroforestry systems for biomass and soil carbon estimation. Each system consisted of ten sample plots. Diameter and height of all trees with diameter at breast height greater than 10 cm were measured. The diameters of the trees were measured at standard height, i.e., diameter at breast height. Above ground biomass, below ground biomass and soil organic carbon were summed to determine the total carbon stock in the agroforestry systems. Collected data were analyzed through tabular analysis, and volume and biomass estimation of the trees. Total carbon stock was found higher in Silvopasture system (32.41t/ha), 28.58 t/ha in Agrisilviculture system and 30.71 t/ha in Homegarden system. Results have shown the potentiality of agroforestry systems for carbon sequestration. Such systems need to be promoted for their efforts by encouraging them with some subsidized input support, financial support or some capacity building trainings by the government.
Mostrar más [+] Menos [-]Peyzaj ve Rekreasyonel Potansiyelin Belirlenmesinde Gülez Yöntemi: Gölbaşı Gölleri Tabiat Parkı (Adıyaman) Örneği Texto completo
2025
Ercan Vural
Nüfus artışı, hızlı ve plansız kentleşme ile birlikte kent içerisindeki yeşil alanlar başta olmak üzere diğer tüm doğal alanlar yapılaşma nedeniyle niteliğini kaybetmiş veya azalmıştır. Kentte yaşayan insanlar için bu alanların azalması ve niteliğinin ortadan kalkması rekreatif ihtiyaçların karşılanamamasına neden olmuştur. Bu durum kent içinde veya yakın alanlarındaki tabiat parklarının, mesire alanlarının ve ormanlık alanlarının daha kıymetli hale gelmesine imkan tanımıştır. Bu çalışmanın amacını, Adıyaman ili, Gölbaşı ilçesi sınırları içinde kalan Gölbaşı Gölleri Tabiat Parkı’nın Gülez yöntemine göre rekreasyonel potansiyelinin belirlenmesi oluşturmaktadır. Gülez yönteminde, rekreasyonel alanın peyzaj değeri, iklim değeri, ulaşılabilirlik durumu, rekreatif kolaylık ve olumsuz etkenlerin puanlandırılmasıyla rekreasyon potansiyeli hesaplanmaktadır. Bu hesaplamaya göre, Gölbaşı Gölleri Tabiat Parkı’nın rekreasyonel potansiyeli toplamda “67” puan alarak “yüksek” kategoride değerlendirilmiştir. Gölbaşı Gölleri Tabiat Parkı’nda gerçekleştirilen arazi çalışmaları sonucunda, yöntemde belirtilen bazı ögelerinin nitelik olarak eksik olduğu ve olumsuz etken ögelerinin oldukça fazla olduğu tespit edilmiştir. Gölbaşı Gölleri Tabiat Parkı’nın rekreasyonel faaliyet potansiyeli tespit edilenden daha fazladır. Sahadaki olumsuz etkenlerin azaltılmasıyla alanın rekreasyonel faaliyet potansiyelinin “19” puan daha artırılabileceği, bu sayede Gölbaşı Gölleri Tabiat Parkı’nın toplam puanın “86” olarak potansiyelinin “çok yüksek” sınıfına ulaşabileceği öngörülmektedir.
Mostrar más [+] Menos [-]Growth Performance, Body Measurements and Live Weight Estimation of Tülü (Bactrian × Dromedary F1) Calves from Birth to Six Months of Age Texto completo
2025
Atakan Koç | Alkan Çağlı
A hybrid camel Tülü (Bactrian male x Dromedary female F1) males are preferred in camel wrestling, which is a culture unique to Anatolia. In this study, changes of live weight (LW), daily weight gain (DWG), and body measurements (BMs) of Tülü calves in the first 6 months of age in a farm in Aydın province, Türkiye, were determined as well as developing equations to estimate LW from body measurements. Tülü calves average birth weight (BW) was 34.7±1.80 kg and reached 175.3±3.38 kg at the age of 6 months with a 0.768±0.03 kg DWG during this time. Although the monthly total weight gains and monthly DWG averages of the calves in the first 6 months were similar, the changes in monthly LW and BMs were statistically significant (P<0.01). Abdominal girth (AG) alone can be used to predict LW in the analysis performed to estimate LW from body measurements by stepwise regression (R²=95.62%). In conclusion, Tülü calves had relatively high growth rate in their first six months of age, and unlike other livestock species, instead of hearth girth (HG), AG that includes the hump can be used to estimate LW of Tülü calves.
Mostrar más [+] Menos [-]Süt Sığırı Rasyonlarında Kaba Yem Kaynağı Olarak Soya Silajı Kullanımı Texto completo
2025
Ahmet Doğan Yücesoy | Ali Vaiz Garipoğlu
Ruminant hayvanların beslenmesinde kullanılan rasyonlar belirli oranlarda kaba ve kesif yem içermelidir. Besin madde içeriği bakımından zengin olan kesif yemler genelde rasyon maliyetini artırmaktadır. Hayvancılık işletmelerinde bu yüksek maliyetten kurtulmak kaliteli kaba yem üretimine bağlıdır. Ülkemizde faaliyet gösteren hayvancılık işletmeleri yem (besleme) maliyetlerinin azaltılması ve ürün kalitesinin yükseltilmesi amacı ile farklı kaba yem arayışı içindedirler. Bu çalışmanın konusunu teşkil eden soya bitkisi, ruminant rasyonlarında hasıl veya silaj formunda kullanılma potansiyeli olan bir kaba yem türüdür. Bir baklagil yem bitkisi olan soya bitkisi protein içeriğinin yüksek olması (yaklaşık %20) ile kaba yem grubu yemler içinde önemli bir yere sahiptir. Soya bitkisi bu özelliği ile ruminant rasyonlarında temel protein kaynağı olarak kullanılan bazı yem kaynaklarının bir kısmı yerine ikame edilebilmektedir. Nitekim bazı çalışmalarda soya silajının en kaliteli protein kaynağı olarak kabul edilen soya küspesinin yerine bile kısmen de olsa kullanılabileceği ortaya konulmuştur. Bu derlemede soya bitkisinin ruminant rasyonlarında kaba yem kaynağı (hasıl ve silaj) olarak kullanılma potansiyeli hakkında bilgi verilmiştir.
Mostrar más [+] Menos [-]Determination of Energy Production Potential from Walnut (Juglans regia L.) Residues in Kırşehir Province Texto completo
2025
Ömer Ertugrul
The present study aims to evaluate the energy production potential from walnut (Juglans regia L.) residues, specifically pruning waste and shell biomass, in Kırşehir province, Türkiye. Data collected between 2019 and 2023 were analyzed to quantify the biomass availability and its corresponding energy potential across various districts in the region. The findings reveal that total biomass production from pruning residues increased from 1220.36 t in 2019 to 1322.69 t in 2023, resulting in an energy potential growth from 19,904.02 GJ to 21,573.11 GJ. A similar trend was observed in shell biomass, which rose from 483.11 t to 523.62 t, resulting in an energy potential increase from 9164.60 GJ to 9933.12 GJ. The Kaman district consistently dominated, accounting for over 55% of the total energy potential, while Boztepe and Çiçekdağı exhibited the lowest contributions. The total energy production potential from walnut residues in 2023 was estimated at 31,506.22 GJ (31.51 TJ), corresponding to an annual electricity generation capacity of approximately 8751.74 MWh. The study emphasizes the higher energy potential of pruning residues compared to shell biomass and highlights regional disparities in biomass availability, underscoring the need for targeted strategies to optimize resource utilization. The findings indicate that the utilization of walnut residues for bioenergy purposes has the potential to substantially mitigate fossil fuel dependency and to promote sustainable energy development in the region.
Mostrar más [+] Menos [-]Prevalence and associated risk factors of anaplasmosis in goats at Chattogram district, Bangladesh Texto completo
2025
Bijoy Chowdhury | Bhajon Chandra Das | Dibyendu Biswas
Anaplasmosis, a vector-borne haemoparasitic disease, poses a significant threat to animal health. This study investigated the prevalence and associated risk factors of anaplasmosis in goats within the Chattogram district of Bangladesh. The research was conducted at the SA Quadery Teaching Veterinary Hospital (SAQTVH), Chattogram Veterinary and Animal Sciences University (CVASU), involving observations of 202 goats. Blood samples were collected from the ear veins of 44 goats. Thin blood smears were prepared, stained with Giemsa, and examined under a microscope. Statistical analysis was performed using Chi-square tests in SPSS Statistics version 26. The study found that goat rearing systems significantly influenced infection rates (P < 0.05). Anaplasmosis was more prevalent in goats displaying pale mucous membranes and symptoms such as fever or weakness (P < 0.05). To mitigate the disease, strategic control measures, including vector reduction and routine health monitoring, are recommended.
Mostrar más [+] Menos [-]Detection of Prunus Necrotic Ringspot Virus (PNRSV) and Apple Mosaic Virus (ApMV) in Rose (Rosa spp.) Plants in Konya Province Texto completo
2025
Adile Tuğçe Orhan | Serkan Yeşil
Detection of Prunus Necrotic Ringspot Virus (PNRSV) and Apple Mosaic Virus (ApMV) in Rose (Rosa spp.) Plants in Konya Province Texto completo
2025
Adile Tuğçe Orhan | Serkan Yeşil
This research was conducted to determine the presence of Prunus necrotic ringspot virus (PNRSV) and Apple mosaic virus (ApMV) that can cause infection in rose (Rosa spp.) plants grown in Konya province. For this purpose, field and laboratory studies were carried out in areas where roses are mostly grown for landscaping purposes, and infection rates were calculated with the data obtained. The hypothesis of the study is that roses in Konya province may be infected with PNRSV and ApMV and the presence of these viruses can be determined. In line with this hypothesis, various rose growing areas in Konya province were selected as the research area. During the field studies in 2023, guided sampling was carried out and 94 leaf, branch and flower samples were collected from different rose varieties. The collected samples were tested for determining of PNRSV and ApMV infections by Double Antibody Sandwich (DAS) ELISA method, which is one of the serological testing methods in the laboratory. As a result of the tests, it was revealed that the single infections of PNRSV and ApMV were present in 12 and 11 samples of rose plants in Konya province. The total infection rate of both viruses in the province was calculated as 24.47%. Also, PNRSV+ApMV mixed infections were detected in 2 samples. In this study, the infections of PNRSV and ApMV on roses in Konya province were determined for the first time by serological methods. These results will serve as an important source of information for rose producers and agricultural engineers in the region and will allow the development of strategies to control the spread of viruses and minimize infections.
Mostrar más [+] Menos [-]Role of VAM on growth and phosphorus nutrition of maize with low soluble phosphate fertilization Texto completo
2010
Rakshit, Amitava | Bhadoria, pratapbhanu
The effect of vesicular arbuscular mycorrhizal (VAM) infection on growth and P nutrition in Maize (Zea mays, cv.DDH hybrid) were assessed in Oxisol pot experiment. Maize was grown inoculated with spores of VAM fungi Glomus mosseae or non-inoculated. Low soluble ferrous phosphate (FePO4.4H2O) was added to the mycorrhized and non-micrrohized maized. The dry weight of mycorrhized plants with added phosphate (P) were higher than in mycorrhized plants without added P or non-mycorrhized plants with added P. The amount of P in the soil samples from pots with mycorrhizal plants fertilized with P was evidently smaller than those in samples also fertilized non-mycorrhizal plants. The percentage of P was higher in tissues of fertilized mycorrhial plants than in those mycorrihzed plants without or nonmycorrhized plants with added low-soluble P. These results indicated that plants in VAM symbiosis mobilize P better from low-soluble P than non-mycorrhized plants.
Mostrar más [+] Menos [-]Role of VAM on growth and phosphorus nutrition of maize with low soluble phosphate fertilization Texto completo
2010
Rakshit, Amitava(Institute of Agricultural Science 1Department of Soil Science and Agriculture Chemistry) | Bhadoria, Pratapbhanu S(Institute of Technology Kharagpur Department of Agricultural and Food Engineering)
The effect of vesicular arbuscular mycorrhizal (VAM) infection on growth and P nutrition in Maize (Zea mays, cv.DDH hybrid) were assessed in Oxisol pot experiment. Maize was grown inoculated with spores of VAM fungi Glomus mosseae or non-inoculated. Low soluble ferrous phosphate (FePO4.4H2O) was added to the mycorrhized and non-micrrohized maized. The dry weight of mycorrhized plants with added phosphate (P) were higher than in mycorrhized plants without added P or non-mycorrhized plants with added P. The amount of P in the soil samples from pots with mycorrhizal plants fertilized with P was evidently smaller than those in samples also fertilized non-mycorrhizal plants. The percentage of P was higher in tissues of fertilized mycorrhial plants than in those mycorrihzed plants without or nonmycorrhized plants with added low-soluble P. These results indicated that plants in VAM symbiosis mobilize P better from low-soluble P than non-mycorrhized plants. | En condiciones de casa de malla se evaluó el efecto de la infestación con micorrizas vesículo arbusculares (VAM) en la asimilación de P por plantas de maíz (Zea mays, cv.DDH hybrid) cultivadas en un Oxisol. Como micorriza se utilizó el hongo Glomus mosseae. En ambos tratamientos (con micorriza y sin ella) se aplicó fosfato ferroso (FePO4.4H2O). La producción de MS de maíz fue mayor cuando se aplicaron el hongo + la fuente de P. La cantidad de P en el suelo con este tratamiento fue menor que en el suelo fertilizado pero sin aplicación del hongo. En las hojas de las plantas las mayores concentraciones de P se observaron igualmente en el tratamiento micorriza + aplicación de fertilizante.
Mostrar más [+] Menos [-]PREDICTION OF HAUGH UNIT BY EGG WEIGHT AND ALBUMEN HEIGHT Texto completo
2019
Rafea khaleel
Haugh unit which introduced by Raymond haugh in 1937 is the most scale used to measure the egg quality by equation ( HU= 100*Log (h+7.57)-(1.7 * W 0.37 ) .The aim of this research is to find the prediction equation of the Haugh unit depending on egg weight and albumen height, where we calculate 1503101 value of Haugh unit using microsoft Excel spreadsheet functions and data of egg weight ranged from 40 to 65 gm by increment (0.01) gm , and albumen height from 4 to 10 mm by increment (0.01)mm . The results indicates that there was a significant positive correlation between haugh unit and albumen height (0.969) and negative correlation between haugh unit and egg weight (-0.215), and the ANOVA table show high significant effect of regression model (P ≤ 0.0001) with coefficient of determination R2 (0.985) which indicate that the prediction equation (HU = 58.235-0.334 W+6.256 A) can predict haugh unit with high accuracy.
Mostrar más [+] Menos [-]Effects of Adoption of Agricultural Technologies on Irish Potato Yield in Ol Kalou Sub-County Kenya: Application of Endogenous Switching Regression Model Texto completo
2025
David Kihoro | Geofrey Kingori Gathungu | Rael Nkatha Mwirigi | Vicky Nyambura Wairimu
Population growth has increased demand and diversified use of Irish potato which have increased its demand. The crop has become a major source of food and income for many households across the world. However, despite the high potential of about 30 tonnes per hectare (ha), smallholder farmers in Kenya realize low Irish potato yields ranging from 4-8 tonnes per ha due to limited uptake of agricultural technologies. The low yields calls for a profound understanding of the factors influencing the uptake agricultural technologies. The study analyzed the effects of the adoption of agricultural technologies on Irish potato yield in Ol Kalou Sub County. The study considered chemical fertilizer, certified seeds, fungicides, and farm machinery as the four main agricultural technologies that that affect yield. A descriptive cross-sectional research design was used to obtain data from a study population of 21,942 smallholder Irish potato farmers in Ol Kalou Sub County. A multiple-stage sampling technique was employed to generate a sample size of 385 respondents who provided primary data. Data collected was analyzed using endogenous switching regression model using STATA version 17. The study found that the average treatment effect on treated (ATT) was 10.21 bags per acre. In addition, the Endogenous switching regression model showed that the expected yield for the adopter increased by 51.83%. Out of the four technologies, the use of chemical fertilizers had the highest effect of 37% on yield. The study concluded that the adoption of agricultural technologies increases the yield of Irish potatoes. The study recommends that national and county governments should develop policy regulations such as training and extension services, market access, price support and public-private partnerships encouraging farmers to uptake agricultural technologies. The study also recommends that both levels of government should subsidize agricultural technologies, hence reducing the cost of adoption.
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