Truck‐mounted area‐wide applications of larvicides and adulticides for extended suppression of adult Aedes albopictus     

Isik Unlu  Ary Faraji  Gregory M Williams  Sebastien Marcombe  Dina M Fonseca  Randy Gaugler 《Pest management science》2019,75(4):1115-1122

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An Empirical Analysis on the Determinants of Government-subsidised Crop Insurance Purchase in Grape Production in Turkey   总被引：1，自引：0，他引：1  

Hasan Yilmaz  Meltem Merkez  Nukhet Unlu 《Erwerbs-Obstbau》2017,59(1):51-60

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Comparison and modelling of extraction methods to assess agronomic effectiveness of fertilizer zinc     

Fien Degryse  Rodrigo C. da Silva  Roslyn Baird  Ismail Cakmak  Mustafa Atilla Yazici  Mike J. McLaughlin 《植物养料与土壤学杂志》2020,183(2):248-259

Total Zn in fertilizer is a poor predictor of Zn availability in granular fertilizers. In this study, we compared different extraction methods using Zn fertilizers for which the agronomic effectiveness had previously been determined. Sixteen fertilizers were extracted by eight different procedures using five extractant solutions: water, 1 M ammonium acetate (pH 7.0), 74 mM EDTA (pH 7.0), 5 mM DTPA + 0.1 M MES (pH 6.2), and 0.12 M bis‐tris (pH 6). Modelling of Zn solubility and speciation was carried out with a chemical speciation program (Visual Minteq). The predicted solubilities were in good agreement with the observations, indicating chemical equilibrium. The three methods using pure water were highly correlated with each other and showed the strongest correlation with agronomic effectiveness (r = 0.81–0.90). The methods using extractants with strong pH buffering or high chelating capacity showed no or weak correlation with the agronomic effectiveness. Thus, water‐only based methods give the best indication of the availability of Zn in granular fertilizers, and are best suited for regulation or labeling of available Zn in fertilizer.  相似文献   

Effects of dietary fish oil replacement with vegetable oils on growth and tissue fatty acid composition of humpback grouper, Cromileptes altivelis (Valenciennes)     

Rossita Shapawi  Saleem Mustafa  & Wing-Keong Ng 《Aquaculture Research》2008,39(3):315-323

The replacement of dietary marine fish oil with vegetable oils was examined in fingerling humpback grouper, Cromileptes altivelis, over the course of an 8‐week growth trial. Five isolipidic (10%) and isoproteic (50%) fish meal‐based practical diets were formulated to contain iso‐ingredients but with different sources of lipids [crude palm oil (CPO), refined, bleached and deodorized, palm olein (RBDPO), soybean oil (SBO) or canola oil (CNO)], and their performance was compared with the control diet, which contained cod liver oil (CLO) as the added lipid source. The experimental diets were fed close to apparent satiation twice a day to triplicate groups of fish (10.6 ± 2.2 g). The grouper fingerlings were randomly distributed into groups of 12 fish in cylindrical cages (61 cm depth and 43 cm diameter) that were placed in a 150 tonne polyethylene seawater tank. There were no significant differences (P>0.05) in terms of growth, survival, feed conversion ratio, protein efficiency ratio, net protein utilization, hepatosomatic index and condition factor among fish fed the various dietary treatments. Similarly, the dietary lipid source did not significantly affect the whole body proximate composition of the fish. Muscle and liver fatty acid composition of fish was influenced by the experimental diets. Replacement of dietary CLO with CPO, RBDPO, SBO or CNO produced fish with lower n‐3 highly unsaturated fatty acids and increased levels of 18:2n‐6 in the muscle and liver. The n‐3:n‐6 fatty acid ratio in the muscle of fish fed the CLO‐based diet was 3.0 compared with 0.5–0.8 in the muscle of fish fed the various vegetable oil‐based diets. The present study demonstrated that various vegetable oils can be used in fish meal‐based dietary formulations for humpback grouper without compromising growth or feed utilization efficiency.  相似文献   

Perspectives on protected area and wildfire management in the Black Sea region     

George N.Zaimes  Petros A.Tsioras  Chrysovalantis Kiosses  Mustafa Tufekcioglu  Sergiy Zibtsev  Ilya Trombitsky  Razvan Uratu  Luiza Gevorgyan 《林业研究》2020,31(1):257-268

Protected areas are necessary for the conservation and enhancement of biodiversity.Wildfires are major threats to forests and other natural areas,because they may cause irreversible damages.The aim of this study was to analyze the perspective of experts(N=284),from six countries of the Black Sea,on the current status and problems of protected areas and wildfires.Understanding their points of view could enhance future management on these issues in the region.Data collection was carried out for 9 months,using a web-based questionnaire.Wildfires were perceived as a serious problem in Turkey,Armenia and Greece but as a substantially less serious problem in Romania,Ukraine and Moldova.In Greece,Armenia,and especially Ukraine,the current designated protected areas are considered sufficient to maintain biodiversity,while in Romania,Turkey,and especially Moldova,more areas should be designated as protected.A major need in all countries(except for Turkey)is the increased use of information and communication technologies for both wildfire suppression and protected area management.Experts were divided on whether wildfire suppression and management of protected areas are interconnected.However,there is growing awareness of the adverse impacts of climate change in protected areas and the frequency of wildfires in the future.The most frequently suggested measures to alleviate these impacts were:changes in forest management and increasing public awareness for wildfire suppression,along with changes in forest management and increased staff training to enhance protected area conservation.  相似文献