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A Calibration Study for Sensor-Based In-Season Nitrogen Management of Irrigated Winter Wheat Texte intégral
2020
Erdinc Savaşlı | Oğuz Önder | Ramis Dayıoğlu | Didem Özen | Suat Özdemir | Yaşar Karaduman | Özgür Ateş | Melih Özsayın
This study was conducted at Transitional Zone Agricultural Research Institute in Eskisehir, in 2017-2019 growing seasons. In the study, responses of four winter wheat cultivars (Atay85, Hat 31, Yunus and Nacibey) to nitrogen fertilization under irrigation conditions were compared with vegetation indices based on spectral reflection and In- Season Estimates of Yield calculated from these indices. GreenSeekerTM (NTech Industries, Inc., Ukiah,CA) hand-held sensor was used for this purpose. The experimental layout were used 0, 4, 8, 12, 16 and 20 kg N/da nitrogen rates 2 factor factorial in randomized complete block design in the experiment. Vegetation indices (NDVI) were obtained at growth stages Zadoks2,4, Zadoks3,0, Zadoks3,1 and Zadoks3,2. Zadoks3,0 (stem elongation) was found to be the most realistic reading time. A comparison of the system with traditional farmer applications, based on the average of 3 experiment fields, the new system was shown to give similar yields with 2,8 kg/da less N in the spring (ZD3,0), showing its economically promising value. The sensor application is determined to be 2% more economically effective than farmer application. Economic nitrogen dose respectively Atay85, Hat 31, Yunus and Nacibey was determined as the nitrogen dose 12,6 kgN/da, 14,1 kgN/ da, 14,4 kg N/da and 17,9 kgN/da.
Afficher plus [+] Moins [-]Determination of Antifungal Effects of Some Berry Fruits Ethanol Extracts by Disc Diffusion Method Texte intégral
2020
Oktay Tomar | Gökhan Akarca | Elif Başpınar
There are many natural growth area in Turkey and utilizability is increasingly in different areas. Berry fruits involve several species such as grape (Vitis spp.), currant (Ribes spp.), rosehip (Rosa spp.), strawberry (Fragaria spp.), raspberry (Rubus spp.), pomegranate (Punica spp.), blackberry (Rubus spp.), bilberry (Vaccinium spp.), mulberry (Morus spp.) and cornelian cherry (Cornus spp.). Berries are soft fruits that turn from red to blue or black. They contain a good source of vitamins and minerals, and they have various phytochemical compositions that relevant to consumer health. Different varieties of berries contain quite variable concentrations of ascorbic acid, folic acid, anthocyanin, flavonol, ellagitannins and many diversity of hydroxybenzoic acid. Berries have antioxidant, antimicrobial, antifungal and anticarcinogenic properties due to rich content of phytochemical. In this study, Antifungal effect of ethanol extracts obtained from strawberry, raspberry, pomegranate, blackberry, bilberry, mulberry and cornelian cherry against 7 different subspecies of Penicillium, 6 different subspecies of Aspergillus and Mucor racemosus, Botrytis cinerea, Geotrichum candidum, Cladosporium claudosporioides, Rhizopus nigricans species were determined by using disk diffusion method. As a result of the research; It was determined that 9 different samples had antifungal effect on 18 different mold species at various rate. The highest antifungal effect was observed with 24.65 milimeter zone diameter against Mucor racemosus in pomegranate peel extract. This value was followed by blackberry extract against Penicillium glaucum and Penicillium chrysogenum with 20.54 and 20.03 milimeter zone diameter, respectively. It was concluded that the lowest antifungal effect on mold species apart from Aspergillus flavus in blue bilberry extract.
Afficher plus [+] Moins [-]An Investigation on Determination of Seed Characteristics of Some Gluten-Free Crops (Amarantus mantegazzianus, Chenopodium quinoa Willd., Eragrostis tef [Zucc] Trotter, Salvia hispanica L.) Texte intégral
2020
Zeynep Dumanoğlu | Hakan Geren
To meet the nutritional requirements required for human and animal nutrition due to climatic changes, research on determination of rich in nutrients and quality, products with high resistance to adverse environmental conditions and their possibilities for growing and reproduction are carried out. This research was carried out between 2018-2019. As a material, seeds belonging to the amaranth (Amarantus mantegazzianus), chia (Salvia hispanica L.), quinoa (Chenopodium quinoa) and teff (Eragrostis tef [Zucc] Trotter) plants were studied. Some characteristics of these seeds were determined such as shape, size, mean arithmetic and geometric diameter, sphericity and thousand grain weight. According to the data obtained; the highest average length (1.140 mm), width (1.080 mm) and surface area (0.930 mm2) of the seeds of the quinoa seeds compared to other seeds; the tambourine seeds had the lowest average length (0.540 mm), width (0.300 mm) and surface area (0.130 mm2) values. In terms of thousand grain weights, the seeds of the quinoa plant are the heaviest seeds with 3.3600 g; the lightest seeds were determined to belong to the tambourine seeds with 0.0028 g.
Afficher plus [+] Moins [-]Evaluation of the Effect of Dissolved Metals Detected in Değirmendere Dam (Amasya, Turkey) on Drinking and Irrigation Water Quality Texte intégral
2020
Fikret Ustaoğlu
Dams are important sources particularly for energy production as well as drinking and irrigation water. In this study, dissolved metal concentrations in Değirmendere Dam water in Amasya province were determined by ICP-MS and the data were evaluated in terms of drinking/irrigation water. Mean value of each metal in samples collected from 5 different points of the reservoir is presented in µg L as follows; Ca (50943)> Mg (42212)> Na (31637)> K (3725)> Al (63.68)> Fe (43.30)> Zn (30.78)> Cu (5.79)> Mn (4.59)> Ni (2.97)> Cr (1.18)> Pb (1.14)> As (1.04)> Cd (0.69). These results did not exceed the drinking water limit values recommended by the World Health Organization (WHO) and Turkish Standards (TS 266). Water quality index (WQI), heavy metal pollution index (HPI) and heavy metal evaluation index (HEI) values were calculated as 16.63-17.54-1.00, respectively. In terms of hazard quotient (HQ), hazard index (HI) and cancer risk (CR), the water quality of the reservoir is not potentially dangerous for adults/children. Dam water is convenient for irrigation based on sodium absorption rate (SAR = 0.78) and sodium percentage (Na = 19.56%). However, magnesium hazard (MH = 57.70) value is above the limit value of 50 with reference to irrigation water.
Afficher plus [+] Moins [-]Fatty Acid Compositions of Organic Animal Products Texte intégral
2020
Ceyhun Yücel
In this review, it is aimed to compare the contents of unsaturated fatty acids (Mufa, Pufa) which are essential for human health of products obtained from animals (meat, milk, eggs) grown in organic and conventional (conventional) conditions. Although the unsaturated fatty acid content and amounts of animal products reflect product quality and nutrients, organic animal products contain more unsaturated fatty acids depending on their growing systems (extensively) and accordingly it is determined to be of higher quality and nutritious. Organic agriculture, which is the cornerstone of sustainable agriculture and animal husbandry, and organic livestock, which is an integral part of it, uses natural resources effectively. It is an environmentally friendly production model that does not use additives and aims to provide healthier products with the quantity of products to consumers.
Afficher plus [+] Moins [-]A Study on Milk Yield, Fertility and Milk Quality Characteristics of Primiparous Red-Holstein and Holstein-Friesian Cows Texte intégral
2020
Atakan Koç | Ramazan Gürses
The aim of this study was to determine the reproductive characteristics, milk yield and milk quality of Primiparous Red-Holstein (RH) and Holstein-Friesian (HF) cows. For this aim, records and monthly taken milk samples of 83 RH and 14 HF raised on a farm in Aydın, Turkey were used. The averages of the first calving age (FCA), gestation length (GL), days open (DO), calving interval (CI), daily milk yield (DMY), 305-day milk yield (305-dMY), solid non-fat (SNF) and Log10 somatic cell count (Log10SCC) of milk were found to be 27.6±0.24 mo, 278.4±1.09 d, 144.0±7.12 d, 421.4±7.66 d, 22.7±0.21 kg, 6981±137.0 kg, 9.8±0.04% and 4.59±0.024 (38905 cells/ml), respectively. Except for DMY, the differences between the breeds were statistically insignificant for FCA, GL, DO, CI, 305-dMY, SNF and Log10SCC. DMY averages for RH and HF were 21.8±0.21 kg and 24.3±0.49 kg, respectively. The effect of season on FCA and the effect of lactation month on SNF and Log10SCC were also found to be statistically significant. Apart from DMY, not any significant difference was observed between RH and HF breeds in terms of the characteristics emphasized.
Afficher plus [+] Moins [-]Nutritional, Health-Promoting Properties and Antioxidant Activity of Yemeni Fermented Milk (Laban) and A Laban-Pulicaria Jaubertii Mixture Texte intégral
2020
Alsayadi Muneer MS | Almowallad Shamsan A. | Yahya Mohammed A. | Ekram Alsanea | Talal Alfardi | Salah Alhaidari | Hassan Alhaidari | Abdullah Alzhri
Fermented milk is known as a major functional food that has proven health benefits, such as probiotic effects. The fermented milk, laban, is the foremost dairy product in Yemen. This study aimed to evaluate the nutritional and health-promoting properties and antioxidant activity of laban. Nutritional and health-promoting properties were estimated. Antioxidant activity was evaluated by measuring total polyphenol levels, 1.1-diphenyl-2-picrylhydrazyl scavenging activity, reducing power, and total antioxidant capacity. The antioxidant activity of a laban-Pulicaria jaubertii mixture was also determined. Results showed considerable quantities of nutrients, especially fats, in both milk and laban. The composition differences between milk and laban show several significant health-promoting properties for laban. Laban showed higher antioxidant activity than raw milk and the addition of P. jaubertii to the laban, increased antioxidant activity. The properties of laban suggested the potential use of laban as a promising functional food with excellent health benefits, especially when mixed with P. jaubertii.
Afficher plus [+] Moins [-]Determination of Plant Protection Problems on Wheat Production in Sivas Province Texte intégral
2020
Mustafa Belen | Dürdane Yanar | Gülistan Erdal
Objective of this study is to determine plant protection problems which wheat growers encountered and their knowledge on plant protection in Sivas province. This study is carried out in the Central, Hafik, Ulas and Yıldızeli districts of Sivas province with 220 farmers. The problems which related to plant diseases, pests and weeds in wheat growers faced were also determined. Almost all farmers (99.09%) apply chemical control. Farmers decides the pesticide applications in their wheat growing areas according to own experience (84.09%), manufacturers recommendations (24.09%), the advice of agricultural experts (17.27%) and the advice of neighbours and friends (9.55%). Farmers mostly have been applying pesticides based on their own experiences. In recent years, pesticides are being used widely against diseases, pests and weeds. Some times over dose application of pesticides by farmers in judiciously resulted in environmental pollution, health problems. Also the natural enemies will be affected. Furthermore, in weed control farmers use herbicides against broad leaved weeds. It was determined that the farmers do not have knowledge about narrow leaved weeds and herbicides use against these weed species is limited. According to the results of this survey, it will be beneficial to provide training on plant protection to wheat producers in the region.
Afficher plus [+] Moins [-]The Effects of Zeolite Application on Nitrate Quantity in Soil and The Growth of Maize Plant (Zea Mays L.) Texte intégral
2020
Sezer Şahin | Gamze Uçar Tutar | Naif Geboloğlu
Nitrogen losses in agricultural areas cause environmental pollution. At the same time, it reduces the yield in crop production. The aim of this study is to investigate the effects of zeolite and nitrogen applications on the development of maize plant. Another aim is to reveal nitrate changes in soil. Everest maize variety was used in the study. Zeolite doses of 0, 125, 250 and 500 kg/da were applied to the soil. Nitrogen doses were applied to the soil at 5, 10, 15 and 20 kg/da. In this study, zeolite and nitrogen applications increased the plant height, cob weight and green forage yield of maize plant statistically. The highest green weed yield was 6563 kg/da in Z3N3 application and the lowest green forage yield was 4021 kg/da in Z0N0 application. Increased nitrogen doses increased the amount of nitrate in soil by significantly 1% and zeolite applications increased by significantly 5%. The results of this study would be beneficial in the application of zeolite to the soil in order to reduce nitrogen losses and to make the plant benefit more from nitrogen.
Afficher plus [+] Moins [-]Milk Yield, Reproduction and Milk Quality Characteristics of Simmental and Red-Holstein Cattle Raised in a Dairy Farm in Aydın Province: 1. Reproduction and Milk Yield Texte intégral
2020
Atakan Koç | Çağrı Arı
In this study, fertility and milk yield characteristics of Simmental (SIM) and Red-Holstein (RH) cattle raised in a private dairy farm in Aydın province were determined. For fertility traits, days open (DO), calving interval (CI), gestation length (GL) and number of inseminations per pregnancy (NIPP), for milk yield traits lactation length (LL), lactation milk yield (LMY), 305-days milk yield (305-dMY), peak time (PT) and peak milk yield (PMY) were determined. The means of DO, CI, GL and NIPP of RH and SIM breeds were 109.44±5.66 d and 96.06±3.51 d, 389.16±5.70 d and 380.37±3.54 d, 279.71±0.469 d and 284.94±0.303 d, 1.88±0.099 and 1.85±0.065; the means of LL, LMY, 305-dMY, PT and PMY were 333.00±5.405 d and 322.72±3.233 d, 8235.32±148.099 kg and 7357.03±88.122 kg, 7628.78±109.148 kg and 6938.09±64.945 kg, 46.55±2.196 d and 44.46±1.218 d, and 34.68±0.567 kg and 31.47±0.314 kg, respectively. Although, significant fertility and milk yield differences were obtained between the breeds, the favorable performances of both SIM and RH breeds in terms of all features, considered as the environmental factors such as management-feeding-housing-herd management provided to animals in the farm were also suitable.
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