Wheat Production In Turkey Research Articles

Land use preferences considering resource economics: case of organic versus conventional wheat production in Turkey

Land use preferences considering resource economics: case of organic versus conventional wheat production in Turkey

Optimization of energy consumption and its effect on the energy use efficiency and greenhouse gas emissions of wheat production in Turkey

This study aimed to model energy use, energy efficiency, and greenhouse gas emissions in rain-fed wheat production by using a nonparametric data envelopment analysis (DEA) method. Data were collected through face-to-face interviews with 140 wheat farmers in 4 districts of Antalya Province. The energy inputs (independent variables) were human labor, seeds, chemical fertilizers, herbicides, and diesel fuel, and the energy output was the dependent variable. The results showed that the average energy consumption and the output energy for the studied wheat production system were 21. 07GJ ha−1 and 50. 99 GJ ha−1, respectively, and the total GHG emissions were calculated to be 592.12 kg CO2eq ha−1. Chemical fertilizer has the highest share of energy consumption and total GHG emissions. Based on the results from DEA, the technical efficiency of the farmers was found to be 0.81, while pure technical and scale efficiencies were 0.65 and 0.76, respectively. The results also highlighted that there is a potential opportunity to save approximately 14% (2.93 GJ ha−1) of the total energy consumption and consequently a 17% reduction in GHG emissions by following the optimal amounts of energy consumption while keeping the wheat yield constant. Efficient use of energy and reduction in GHG emissions will lead to resource efficiency and sustainable production, which is the main aim of the green economy.

Policy Assessment of Wheat Production in Turkey

Turkey plays a significant role in global wheat trade, importing wheat grain and exporting processed wheat products such as pasta, flour and biscuits. Wheat growing areas in Turkey have shown a decrease of about 10% over the last decade. Although an increase in yields keeps the production amount in balance, policies toward the wheat sector have reached a more critical point due to an increasing population and growing demand on the wheat flour sector. In this study, the profitability and sustainability of the sector were analyzed by using the Policy Analysis Matrix (PAM) approach, and by examining the effects of the policies that have been applied on the wheat market recently. According to the PAM results, domestic wheat prices are higher than world prices due to existing policies and the wheat sector is not competitive without support.

Assessment of wheat\u2019s water footprint and virtual water trade: a case study for Turkey

BackgroundMany countries are experiencing significant water scarcity and related problems due to limited availability, uneven distribution of water resources and high demand. Therefore, increasing water use efficiency and better management of existing resources have become substantially important. The agricultural sector is responsible for around 80% of global freshwater withdrawal. Wheat is one of the most important crops having large volumes of virtual water (VW) which is defined as the hidden water embedded in the products.MethodsWater footprint (WF) is an indicator showing the total volume of freshwater consumption of a product or process. Blue water concept is defined as the amount of exploited surface and groundwater resources. Green water represents the total volume of rainwater allocated by the product. WF methodology brings a new approach to inter-regional water use and management by quantifying the amount of direct and indirect water use and tracing the hidden links between production, consumption and trade. The main objective of this study is to analyze Turkey’s national blue and green WF of wheat production, consumption and virtual water trade between 2008 and 2019. Detailed province-based quantification of wheat’s water exploitation is provided using spatial interpolation method.ResultsTotal consumptive WF of wheat production and consumption of Turkey is calculated as 39.3 and 48.1 Gm3/year, respectively. The average blue and green VW contents of wheat production through Turkey are assessed to be 1161 and 748 m3/ton, respectively. The water footprint parameters of each province are calculated and discussed using climatic and agricultural data. VW transfer of Turkey’s international wheat trade is also analyzed. Total national water saving is calculated as 7.8 Gm3/year which is mostly imported from Russia. Global VW deficit due to international wheat trade is calculated to be 1.76 Gm3/year.ConclusionDespite its high contribution to global wheat production, increasing population and strong wheat-based diet, quantitative, comparative and up-to-date analyses of the blue and green WF and the VW transfer of wheat production in Turkey are not available. This study contributes to the national and international water management and planning studies to increase the water allocation efficiency of agricultural products.

The Effects of the Second World War on Wheat Production in Turkey: Cobweb Theorem

In World War II, wheat was one of the most important basic consumption items.The most important factor causing this situation was the natural disasters occurring in 1940-41. The grain production had constituted the most important export resources in Turkey. For this reason, many decisions about the production and the consumption of wheat were taken to prevent the increase in the bread price. Despite these decisions, supply-demand distributions had abnormally continued for many years. This case, in this study, was analyzed by using cobweb theory.

Yield promotion and phosphorus solubilization by plant growth–promoting rhizobacteria in extensive wheat production in Turkey

AbstractPlant growth–promoting rhizobacteria (PGPR) have been reported to stimulate the growth and yield of grain crops, particularly when nutrient supply is poor. However, the mechanisms underlying stimulation of plant growth may vary depending not only on growth conditions and crop management but also on plant and bacterial species. The present study assessed the effect of an inoculation with single or multiple PGPR strains on phosphorus (P)‐solubilization processes in the soil and on grain yield in wheat. Single inoculation with Bacillus subtilis OSU‐142, Bacillus megaterium M3, or Azospirillum brasilense Sp245 increased grain yield by 24%, 19%, and 19%, respectively, while a mixed inoculation with OSU‐142, M3, and Sp245 increased grain yield by 33% relative to noninoculated plants. Single inoculations with Paenibacillus polymyxa RC05 or Bacillus megaterium RC07 were less effective. Single or mixed treatments with OSU‐142, M3, and Sp245 increased the concentrations of the labile and moderately labile P fractions in rhizosphere soil. The growth‐stimulating effect of OSU‐142, M3, and Sp245 was also reflected by higher P concentrations in most plant organs. Among all inocula tested, the highest plant P acquisition was obtained in the presence of M3 and accompanied by the highest microbial P levels and the highest phosphatase activities in the rhizosphere soil. In conclusion, seed inoculation with mixed PGPR strains may effectively substitute for a part of P‐fertilizer application in extensive wheat production, and in particular M3 appears to improve the solubilization of inorganic soil P.

Determination of Puccinia graminis f. sp. tritici races of wheat in Turkey

Stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), is one of the most important diseases limiting wheat production in Turkey. Surveys were conducted in 2007 and 2008 in order to determine the races of the pathogen present in Turkey. In 2007, it was found that 91 (43%) out of 207 inspected wheat fields were infected with stem rust, and in 2008, it was found that 61 (25%) out of 242 inspected fields were infected. From these samples, 40 single pustule isolates were obtained. The North American differential set, which includes 20 genotypes with different resistance genes, was employed to identify the races present. Seedling tests were used for race analysis under greenhouse conditions. A total of 21 different stem rust races were found. Pgt race TKTTC, which was found in 11 Pgt isolates, was the most common race. Genotypes possessing at least 1 of the Sr24, Sr31, Sr26, and Sr27 resistance genes showed low infection types for 40 Pgt isolates. The resistance genes determined in this study could be used in breeding programs for developing stem rust-resistant genotypes.

Risk and Uncertainty (Variability) in Wheat Production in Turkey

The reasons for variability and the difference between risk and uncertainty were explained in the study. The level of uncertainty in yield, price and gross income was analysed for wheat via using coefficient of variation and coefficient of random variation. Results show that farmers are faced uncertainty in agricultural production due to some factors (climate, price policy changes, etc), which are not under the control of producers. Agricultural insurance, product diversification, contract farming and future markets can be solutions to reduce risk possibility and variability in Turkish agriculture.