نتایج جستجو برای: co2 per t wheat production among different production activities
تعداد نتایج: 4301630 فیلتر نتایج به سال:
Background and Objectives: Cellulase is an important enzyme with multiple applications in industries, including food, laundry, pharmaceutical, textile, pulp, paper and biofuel industries. Solid-state fermentation (SSF) is a method for cellulase production, which includes several advantages, compared to submerged fermentation. In this study, cellulase was produced by three filamentous fungi, i.e...
In this study we use a high-quality data set of in situ ozone measurements at a suburban site called Mohali in the state of Punjab to estimate ozone-related crop yield losses for wheat, rice, cotton and maize for Punjab and the neighbouring state Haryana for the years 2011–2013. We intercompare crop yield loss estimates according to different exposure metrics, such as AOT40 (accumulated ozone e...
The addition of concentrates of different types (cereals, maize and white sorghum) in the diet of dairy sheep leads to changes in rumen parameters and the end products of digestion in particular the total gas production. The objective of the present work was the determination of total gas and methane production (CH4) in the rumen of Sicilo Sarde rams supplemented by different types of concentra...
documenting the production process in agriculture includes providing all information and activities that shows the course of production from seedbed preparation stage to harvest stage. for this purpose, in present investigation all management operations performed from seedbed preparation stage to harvest stage in the studied wheat fields in 2007 and 2008 were recorded through farms survey. in t...
In this research, the historic data of NOAA /AVHRR NDVI (1981-2000) and the anomaly vegetation index were utilized. Monitoring and analyzing the winter wheat drought situation in the pre-green up period, green up period, heading period and filling period from 1997 to 2000 in Hebei province, Discussing the effects of drought situation in the key growing periods on the winter wheat yield, Taking ...
We examined the hypothesis that elevated CO2 concentration would increase NO3- absorption and assimilation using intact wheat canopies (Triticum aestivum cv. Veery 10). Nitrate consumption, the sum of plant absorption and nitrogen loss, was continuously monitored for 23 d following germination under two CO2 concentrations (360 and 1000 micromol mol-1 CO2) and two root zone NO3- concentrations (...
introduction the average annual precipitation in iran is about 250 mm that is not regularly distributed spatially and temporally. more than 70 percent of total precipitation is not accessible due to evapotranspiration. total renewable water resources of the country are estimated to be around 130 billion cubic meters. in spite of limitation in water resources, they are not used properly. agricul...
This paper investigates the effects of wheat production risk and other socio-economic factors on the probability of adopting new seed technologies. Also, the effects of production inputs and production conditions are examined on wheat production yield and risk. Moreover, the relative risk of new seed varieties will be examined under different scenarios. To carry out the study, farm-level data ...
in recent years, human activities has resulted increases in atmospheric carbon dioxide (co2) concentration. increase in [co2] has caused global warming and climate change. the aim of this study was to assess potential climate change impact on production for one of the most important varieties of wheat (chamran) in ahvaz region. for this purpose, thirteen aogcm models and two greenhouse gases em...
background: iran is located in the seventh rank in terms of co2 emissions resulting from the fuel combustion in the world. gas compressor booster stations, due to the several sources of contaminants, are causing the release of large amounts of co2 and ch4, which will cause climate change therefore, estimating the emissions of the gases from oil and gas, different processing units are necessary....
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