Yazar "Gursoy, Songul" seçeneğine göre listele

Listeleniyor 1 - 7 / 7
  • [ X ]
    Öğe
    Comparative Performance of Two Different Planters Modified for No-Till Planting of Wheat on Ridge
    (Univ Philippines Los Banos, 2012) Gursoy, Songul
    No-till planting of wheat (Triticum durum L.) on ridge after cotton (Gossypium hirsutum L.) harvest may offer potential benefits in terms of lower production costs, improved soil structure and efficient irrigation. Sowing of wheat on ridge is possible with the devolopment of a suitable planter. A study was conducted to compare the effect of two different planters modified to plant wheat without tillage on ridge after cotton harvest in terms of vertical seed distribution, seeding depth, seedling emergence rate, working speed, field capacity and fuel consumption of planters. The commercial planters used for modification in the study were Ozdoken no-till planter (MORP) and Hassia conventional till planter (MHRP). The experimental results showed that the MORP planter placed 60% of the seeds at the targeted depth of about 4 cm, whereas more than 50% of the seeds were on the soil surface or near the surface and remained uncovered with soil with use of the MHRP planter. Use of the MORP resulted in a more uniform vertical seed distribution, higher emergence rate and higher working speed, field capacity and lower fuel consumption compared with use of the MHRP. The results suggest that the MORP planter may be successfully used to plant wheat on ridge without tillage after cotton.
  • [ X ]
    Öğe
    The effect of ridge planting and earliness of durum wheat varieties on sunn pest (Eurygaster spp.) damage and grain yield
    (Elsevier Sci Ltd, 2012) Gursoy, Songul; Mutlu, Cetin; Urgun, Murat; Kolay, Betul; Karaca, Vedat; Duman, Mehmet
    Sunn pests (Eurygaster spp.) are among the most important insect pests of wheat (Triticum sativum L) and barley (Hordeum vulgare L.). Cultural practices can prevent or minimize common sunn pest (Eurygaster integriceps Puton) population densities and crop damage. A three-year field experiment (Jun 05 to Aug 07) was conducted in Diyarbakir in the southeast Antolia region of Turkey, to evaluate the effects of planting method (no-till ridge planting and conventional planting) and earliness of durum wheat (Triticum durum L) varieties (early, mid-season and late varieties) on E. integriceps density, grain damage and overall grain yield. The effect of the planting method on the sunn pest density and percent of grains damaged by sunn pest was not significant; however, there was a significant difference among the different varieties used in this study. While Cesit-1252 (late wheat variety) had the highest nymph density (11.2 nymphs m(-2)) and percent of sunn pest damaged grains (2.8%), Sancanak-98 (early wheat variety) had the lowest nymph density (4.3 nymphs m(-2)) and percent of sunn pest damaged grains (0.8%). Grain yield was the highest (5.99 t ha(-1)) for Sancanak-98 while there was no significant difference between Aydin-93 (5.06 t ha(-1)) and Cesit-1252 (4.99 t ha(-1)). In conclusion, this study suggests that planting methods may not have a significant effect on sunn pest density, percent of sunn pest damaged grains or grain yield; however, the use of early durum wheat varieties, such asSaricanak-98, may reduce sunn pest population densities, percent of damaged grains, allowing increases in grain yield in southeast Anatolia region, Turkey. (C) 2012 Elsevier Ltd. All rights reserved.
  • [ X ]
    Öğe
    Effects of land rolling on soil properties and plant growth in chickpea production
    (Elsevier, 2019) Gursoy, Songul; Turk, Zubeyir
    Land rolling after planting is a common practice in legume production systems in order to smooth the soil surface and improve plant growth by increasing root-soil contact. However, excessive soil compaction due to land rolling can increase soil strength and hamper root growth. The aim of this study was to evaluate the potential effects of land rolling on some soil properties and plant growth parameters in chickpea production. For this purpose, the different ground pressures of land roller (0, 20, 25, 30, 35, 40 kPa) were tested at different times (pre-emergence and post-emergence) under field conditions. To examine the effects of the rolling times and the ground pressures of the land roller on soil properties and plant growth, moisture content, temperature, penetration resistance as soil properties and root dry weight, shoot dry weight, shoot-root ratio, nodule number and grain yield as plant growth parameters were measured. Results showed that the use of the land roller significantly influenced the soil properties (moisture content, temperature, and penetration resistance), plant growth parameters (root dry weight, shoot dry weight, shoot-root ratio, nodule number) and grain yield. The highest grain yield values at 20, 25 and 30 kPa ground pressure levels indicate that some compaction is needed to be able to increase crop yield and prevent the loss of soil moisture.
  • [ X ]
    Öğe
    EVALUATING THE MECHANIZATION OF LIVESTOCK PRODUCTION IN TURKEY
    (Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2017) Gursoy, Songul
    Livestock have always been an important part of agricultural production in Turkey. Chores are tedious and time consuming in livestock production. The main chores in livestock production are the preparation of the animal feed, watering, herding, milking, and cleaning of livestock yards. Therefore, mechanization and automation technologies are very important factors in reducing labor and modernizing of livestock production. The aim of this study is to evaluate the current situation of the livestock mechanization in Turkey, main mechanization problems in livestock production and suggestions for development of mechanization. In this purpose, the current data of Turkish Statistical Institute and Republic of Turkey Ministry of Food-Agriculture-Livestock was used to determine the enterprise size according to the number of animals, and the number of machinery per livestock husbandry according to the machinery type commonly used in livestock enterprises. Also, the previous studies carried out on the determination of the mechanization structure of livestock enterprises in different regions of Turkey were evaluated. The results of this study and the previous studies showed that the average size of livestock enterprise is very small in Turkey and the number of machineries per enterprise was very low. The fact that the livestock enterprises was very small prevented the development of mechanization and automation in livestock production and caused costly production. Also, livestock husbandries were not suitable for the development of mechanization. Consequently, it can be said that the Enterprise size according to the number of bovine, sheep and goats and barn construction are very important factors for development of livestock mechanization in Turkey.
  • [ X ]
    Öğe
    Measurement and modelling of soil displacement from sweeps with different cutting widths
    (Academic Press Inc Elsevier Science, 2017) Gursoy, Songul; Chen, Ying; Li, Bo
    Soil dynamic properties are important performance indicators for soil-engaging tools. In this study, soil displacement and cutting forces of selected sweeps were measured and simulated. The sweeps had different cutting widths: 153, 280, and 330 mm, and they were tested in an indoor soil bin with a sandy loam soil at a working depth of 50 mm and a travel speed of 1.53 m s(-1). A discrete element model was developed using PFC3D (Particle Flow Code in Three Dimensions) to simulate soil-sweep interactions. With the measured soil cutting forces, the model particle stiffness was calibrated to be 3 x 103 N m(-1). Results from modelling and measurements showed a general trend of the highest displacements around the centre of the path of sweep, reducing at the further distance away from the centre. Among all directions, measured soil displacements were the highest in the forward direction, up to 608 mm. Measured results showed that forward soil displacements were smaller for smaller sweeps, and lateral soil displacements were lower at a greater depth regardless of the sweeps. Simulated forward and lateral displacements did not contradict these results. Among all the sweeps, the 153-mm wide sweep had significantly higher vertical displacements at all depths as compared to the other sweeps, demonstrated by both measurements and simulations. Overall, the simulated soil displacements were lower than the measured values in all three directions. The accuracy of the model needs to be improved for predictions of soil displacements. (C) 2017 IAgrE. Published by Elsevier Ltd. All rights reserved.
  • [ X ]
    Öğe
    Microwave drying kinetics and quality characteristics of corn
    (Chinese Acad Agricultural Engineering, 2013) Gursoy, Songul; Choudhary, Ruplal; Watson, Dennis G.
    In recent years, microwave (MW) drying has gained popularity as an alternative drying method for a wide variety of food and agricultural products because of increasing concerns over product quality and production costs. However, the determination of drying kinetics that accurately describes microwave drying characteristics is crucial for the optimization of operating parameters, performance improvement of the drying system and product quality. The objective of this study was to investigate the drying kinetics and the quality characteristics of corn kernels, especially the effects of different initial moisture contents (18.3%, 26.3%, 34.3% and 42.3% db), MW power levels (70, 175 and 245 W) and exposure time (80 s and 120 s) on the drying kinetics, drying rate and various key quality parameters. The results indicated that the increased drying rate at higher power levels (P3, 245 W) reduced the drying time considerably but increased stress crack index and reduced germination. In addition, it reduced bulk density, true density and thousand grain weight (TGW). The germination rate of corn was the highest at MW power level P1 (70 W), with the lowest drying rate and observed to decrease with increase in initial moisture content. The reduction in exposure time decreased stress crack index and increased germination rate, bulk density and true density. The correlation analysis among drying rate, germination, stress-crack index (SCI), bulk density, true density and TGW showed that increasing drying rate could lead to an increase in SCI and decrease in germination, bulk density and true density.
  • [ X ]
    Öğe
    Yield and quality of soybean (Glycine max L.) sown as double crop under conservation and conventional tillage system in Turkey
    (Gaurav Soc Agricultural Research Information Centre-Aric, 2009) Sessiz, Abdullah; Sogut, Tahsin; Temiz, M. Gultekin; Gursoy, Songul
    Soil tillage is considered as the factor contributing to the total energy inputs in agricultural system. No-tillage (NT) is becoming increasingly attractive to farmers because it clearly reduces production costs in comparison to conventional tillage (CT). For this reason, six different soil tillage treatments in soybean production were tested within period 2003 and 2004. The effects of different tillage treatments as conventional tillage, reduced tillage (RT) and no-tillage on yield of soybean (Glycine max L.) and plant properties in south-eastern part of Turkey were studied. The soil was a clay loam with pH of 7.7 and organic matter content of 2.0%. The experiments were performed in randomized complete block design with six treatments and each treatment consisted of three replications. According to results, seedling emergence rates were not found significant between both the years and treatments (P>0.05). Results showed that the tillage treatments did not affect plant height, number of branches and first pod height for both the years. It was found that yield was significantly (P<0.001) different between years (F-year=41.288, df=1, 36; P=0.001). The yield in the second year was found to be higher than that of the first year. The highest yield was found in CT method as 3283 kg/ha and the lowest yield was found in NT method as 2520 kg/ha in year 2004. Protein, oil and ash content of soybean were not affected statistically (P>0.05) by tillage method.