نتایج جستجو برای: Total land output
تعداد نتایج: 1074590 فیلتر نتایج به سال:
Intercropping is a sustainable practice to achieve higher production with the aim to limit external inputs. A field experiment was conducted at the research farm of the Faculty of Agriculture, University of Maragheh, Maragheh, Iran, during 2016 growing seasons with ten treatments to evaluate the yield, analyze the competition and insect’s assemblages in sunflower (as main plant)/soybean (as com...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Total factor productivity (TFP) is the broadest measure of productivity. It compares the total output of a sector to the total land, labor, capital, and material inputs used to produce that output. Increases in TFP imply more output is forthcoming from a given level of inputs, or, equivalently, fewer inputs are required to produce the same output. Growth in TFP is considered to be an indicator ...
Although it is difficult, many countries are attempting to balance economic development and cultivated land preservation for various reasons. China’s experience is a good illustration of such challenges during rapid economic development and urbanization. The central government of China emphasized the high self-sufficiency ratio of grain and therefore set a bottom-line for the area of cultivated...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
An increase in the emission of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from the soil surface to the atmosphere has been of worldwide concern over the last several decades. Carbon dioxide is recognized as a significant contributor to global warming and climatic change, accounting for 60% of total greenhouse effect. The aim of this research was to dete...
The purpose of this research was identifying socio-economic characteristics affected on respondents’ participation in contract farming. The survey was conducted using structured questionnaire in populous states namely Kedah, Kelantan, Terengganu, Pahang, Perak, Selangor and Johor in Peninsular Malaysia. A total of one-hundred and sixty seven FFV farmers were randomly selected and personally int...
We use unique store-specific data for a major UK supermarket chain to estimate the impact of planning, which restricts both the size and location of stores, on store output. Using the quasi-natural experiment of the variation in planning policies between England and other UK countries and a difference-in-difference approach, we isolate the impact of Town Centre First (TCF) policies. We find tha...
the purpose of this research was identifying socio-economic characteristics affected on respondents’ participation in contract farming. the survey was conducted using structured questionnaire in populous states namely kedah, kelantan, terengganu, pahang, perak, selangor and johor in peninsular malaysia. a total of one-hundred and sixty seven ffv farmers were randomly selected and personally int...
Land leveling is one of the most important steps in soil preparation and cultivation. Although land leveling with machines requires considerable amount of energy, it delivers a suitable surface slope with minimal soil deterioration as well as damage to plants and other organisms in the soil. Notwithstanding, in recent years researchers have tried to reduce fossil fuel consumption and its delete...
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