خيارات البحث
النتائج 501 - 510 من 676
Risk Assessment of Pesticidal Toxicity and Threats on Pollinators: A Review on Honey Bee النص الكامل
2020
Kushal Naharki | Sabina Regmi
Pollinators play vital roles to the environment, biodiversity conservation, food security and several dimensions of global sustainable development. Honey bee is an important pollinator globally but has been exposed to increasing threats from diseases, pesticides and biotic stresses. This review paper highlights the role of honey bees as pollinators, addresses threats which influence decline of honey bees and assess pesticidal risk toxicity on non-target organisms. Decline of honey bee population is caused by several factors including habitat fragmentation, pesticidal toxicity, colony collapse disorder and climate change. Pesticidal residue and toxicity has an adverse effect which results in honey bee population decline, disturb foraging and contamination of bee products. Residues of agricultural pesticides like pyrethroid and neonicotinoid pose a serious threat on honey bee health further reducing agricultural production and diversity. Pesticidal risk assessments are carried out to study effects of pesticides on pollinators with an aim to provide measures to safeguard their abundance, diversity and health. Sustainable agriculture, effective policy and proper management can decrease pollinators' risk by helping to diversify the agriculture for pollen and nectars with reduced usage of pesticides and proper management.
اظهر المزيد [+] اقل [-]Review and Meta-Analysis of PPR in Goat and Sheep of Bangladesh from 2000 to 2019 النص الكامل
2020
F. M. Yasir Hasib | Sharmin Chowdhury
Peste des petits ruminant (PPR), considered as goat plague is the most fatal infectious viral disease for small ruminants. This disease is endemic in many parts of the world including Bangladesh causes extensive loss on livestock and economy. This study was conducted to estimate the prevalence of PPR and this is the first meta-analysis on PPR as per authors knowledge in Bangladesh. Articles published during the years 2000 to 2019 on the topic PPR within three electronic databases were used for prevalence estimation by random effect meta-analysis model. A total of 39 articles were finally included in the model for prevalence estimation of goat and sheep. 1589784 goat and 142036 sheep were included in the study for analysis. Analysis showed prevalence of PPR was 15.17% (95% CI: 15.11-15.22) and 9.17% (95% CI: 9.02-9.32), respectively for goat and sheep. As PPR is affecting small ruminants in variable percentage in different districts of Bangladesh, this study estimates the cumulative prevalence of Bangladesh. This study may act as a baseline for taking effective control strategy of PPR in Bangladesh through proper allocation of resources on a priority basis.
اظهر المزيد [+] اقل [-]Cover and Table of Contents النص الكامل
2020
Editoral Editoral
Current Situation of Meadow-Rangelands, Animal Existence and Cultivation for Forage Crops in Turkey, Eastern Anatolia Region and Muş Province النص الكامل
2020
Mahir Özkurt | Selahattin Çınar
The most important way to reduce feed inputs is to increase the amount of good quality roughage. According to official data of Turkey Statistical Institute (TSI) in 2018, Turkey has 18.6 million bovine animal unit (BAU) livestock existence, and 85 million tons of quality roughage is needed to feed the animal existence. However, total quality roughage production of in the Turkey is 59 million, 10 million from meadow and grassland lands, 18 million from forage crops, 31 million from plant residues. Accordingly, the roughage gap in the country is 26 million tons, this accounts for 30% of the need. The quality roughage deficit is quite above this. The Eastern Anatolia region and Muş province have a great potential in Turkey’s animal husbandry both in terms of the presence of animals and the productivity of the grassland areas. The amount of forage crops produced in the region, where livestock is based on pasture and grassland in general, is also above the average of forage crops produced in Turkey. In order to closure roughage gap in Turkey, it is necessary to obtain higher yields from these areas by improvement and using them in accordance with the technique of those areas. In addition, it is necessary to increase the cultivation areas of forage crops within the field agriculture. By the closure of the shortage of roughage, higher animal production will be achieved, input costs may decrease, and the income level of animal producers will increase and the price of animal products may decrease. The research in Turkey, Eastern Anatolia Region and Mus Province of grassland and forage crops status, deficit and status of roughage, issues were analyzed.
اظهر المزيد [+] اقل [-]Effects of Adding Eggshell Powder and Olive Seed Powder to Biscuit Formulation on Some Quality Properties النص الكامل
2020
Ertan Ermiş | Betül Kevser Tuğla | Büşra Külsoy
In this study, it was aimed to evaluate the effects of adding olive seed powder (OSP) and eggshell powder (ESP) to whole wheat biscuit formulation on some of the physico-chemical, chemical, textural and sensory properties. Incorporation of powder materials was done by adding to biscuit dough at prespecified concentrations of OSP (7.5% and 15%) and ESP (2.5%) based on total wheat flour. The data obtained from this study revealed that fortification with powder materials affected protein and moisture content of final product. Additionally, adding powder materials to whole wheat biscuit formulation increased the total amount of phenolics and antioxidant activity significantly. Results of instrumental colour analysis indicated that fortification increased darkness and redness when compared with the control. Sensory analysis data indicated that non-fortified and fortified samples provided similar sensory attributes.
اظهر المزيد [+] اقل [-]Fertility Status and Spatial Distribution of Soil Properties for Tobacco Growing Lands in Tokat Province النص الكامل
2020
Hikmet Günal | Elif Günal
In this study, a total of 202 surface (0-20 cm) soils were collected from the lands of the producers who made contractual production with private companies in the villages where tobacco cultivation is intensively carried out in the Erbaa district of Tokat province. Basic soil properties, macro phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na) and micro nutrient (Fe), zinc (Zn) copper (Cu) and manganese (Mn) concentrations of soil samples were determined. Spatial distributions of clay content, pH, EC, calcium carbonate, macro and micro nutrient concentrations of tobacco growing lands were modeled using geostatistical methods and spatial distributions were mapped. The coordinates of the sampling locations were recorded using a precise GPS. Soils were mostly neutral and slightly alkaline. Neutral soil pH is desired for sustainable tobacco production. Plants may not be able to uptake some of nutrients in soils with moderate alkalinity. In this case, the use of acid character fertilizers is recommended. All of the macro nutrients are at sufficient levels in the tobacco growing lands. Copper and iron concentrations were at sufficient levels in all fields. Plant available manganese was sufficient in almost half of the sampled lands, while it was insufficient in the other half. Available zinc concentration was well below the sufficient level in most of the lands. In order to increase the production to the desired level, fertilizers should be applied based on the plant requirement and soil analysis results. The registration of the soil sampling locations provides an opportunity to create a very useful database for researchers, producers and suppliers who want to understand how the quality of the tobacco growing lands has changed over time.
اظهر المزيد [+] اقل [-]Cover and Table of Contents النص الكامل
2020
Editoral Editoral
Comparison of Field Crops with Tap and Fibrous Root System at Early and Late Growth Stages النص الكامل
2020
Hayati Akman
Knowledge of root architecture is significant since it influences on pathways from, photosynthesis products, water and nutrient movement. This study purposed to elucidate root mass, root length, root/shoot ratio, root/total mass ratio and above-ground characteristics in Vicia pannonica Crantz., Carthamus tinctorius L. and Pisum sativum ssp. arvense L. with taproot and Triticum aestivum L., Hordeum vulgare L. conv. distichon, X Triticosecale Wittmack, Avena sativa L. and Secale cereale L. with fibrous roots at 200 cm long tubes under field-grown condition. Crop harvesting is based on early and late growth stages of cereal crops. The results indicated that winter field crops had a wide range of differences with regard to root and above-ground traits at both growth stages. The root traits of field crop species varied considerably from 0.3 to 5.9 g and 2.4 to 11.9 g for root mass and 84.7 to 127.7 cm and 84.5 to 166 cm for root length at early and late growth stages respectively, while shoot mass was between 0.3–5.7 g and 5.5–29.8 g. Furthermore, the percentage distribution of root mass accumulated in 0-20 cm root length at early and late growth stages, ranged between 52.3 to 81.4 % and 27.7 to 75.2 %, respectively. The findings showed that crops with taproot had less root and shoot mass and shorter root length than cereals with fibrous roots at both growth stages. This study also significantly advances our understanding of root-shoot competition by comparing the agronomical traits of winter field crops with tap and fibrous roots at different growth stages.
اظهر المزيد [+] اقل [-]Determination of Roughage Adequacy by Means of Animal Husbandry Status and Feed Sources in the KOP Region النص الكامل
2020
Orhan Ermetin | Mevlüt Mülayim
KOP region covers Aksaray, Karaman, Konya, Niğde Nevşehir, Yozgat, Kırıkkale and Kırşehir provinces. KOP region has an area of 95,580 km² about 12,3%, with 4.515.046 population about 5,4% and 12,3% of agricultural lands of Turkey. KOP Region has 13.1 % grassland and 9,4% of the area of forage crops cultivation and in terms of production forage crops 15,8% of Turkey. KOP region has also 2.150.920 head of cattle (11,8% of the Turkey), and whit 5.431.031 head of small ruminant (%10,9 of the Turkey). 3.032.086 tons of milk is produced in the KOP region (13,2% of the Turkey). It is produced in the KOP region that 11,9% of Turkey's total red meat production. Livestock and forage crops production has an important place in 8 provinces of the KOP region. In this study, the current situation of livestock, pasture and forage crops cultivation in KOP provinces were evaluated and its effects on regional and country development were examined. Since there are 1.608.530 tons of forage deficit in the KOP region, the production of forage should be increased. In order to increase animal production in the region by the KOP Administration, efforts towards expanding modern techniques and improving livestock infrastructure should continue and animal husbandry activities should continue to be supported with new projects.
اظهر المزيد [+] اقل [-]The Importance of Organic Agriculture and Şanlıurfa Farmers’ Perspectives on Organic Products النص الكامل
2020
Ayşe Çalık
Sustainable agriculture can be defined as the creation of an agricultural structure using agricultural technologies that do not harm the environment in addition to the protection of Natural Resources in the long term. In Turkey, as in the developed countries of the world, intensive (traditional or intensive) agricultural production is used without considering the negative consequences of processing techniques and technologies while using synthetic production inputs without supervision. Today, these applications have started to attract as much attention as waste industry or urban pollution with their effects on the determination of natural balance and the ability to create life hazard that can reach all living beings as well as human beings through the food chain. Therefore, organic farming techniques that meet quality, health and environmental standards play a key role by avoiding the use of unnatural inputs such as pharmaceuticals, synthetic fertilizers. Organic agriculture, which is important for the reflection of sustainable agriculture in practice, has started to be seen as a necessity, especially with the development of environmental awareness in recent years. In this study, it is aimed to explain the basic principles of organic agriculture, which we believe are necessary for sustainable agriculture in the 8 villages, namely Umut, Günbalı, Yenisu, Mehmetçik, Güçlü, Akpınar, Güzel, Anaz and 3 towns (Kısas, Konuklu and Çamlıdere) in Şanlıurfa. According to the results of the survey, almost 30% of farmers were found to grow organic products. At the time of purchase, they answered the question of which products do you pay attention to organic, and more than half (54.8%) of the surveyed farmers responded that they pay attention to food. 45.18% of the surveyed farmers stated that they did not pay attention to anything in shopping.
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