نتایج جستجو برای: agricultural total factorproductivity
تعداد نتایج: 890560 فیلتر نتایج به سال:
Weekly composite rainfall samples were collected in three paired urban and agricultural regions of the Midwestern United States and along the Mississippi River during April-September 1995. The paired sampling sites were located in Mississippi, Iowa, and Minnesota. A background site, removed from dense urban and agriculture areas, was located near Lake Superior in Michigan. Herbicides were the p...
The cereal, oilseeds, and protein crop sector (COP) occupies a prominent position within the European Union’s agricultural sector. Within Spain, the COP sector accounts for almost a third of total Agricultural Guidance and Guarantee Fund expenses, and a half of the utilized agricultural area. The COP sector is not only relevant because of its physical and economic magnitude, but also because of...
Compartmentalised extension prohibits the uptake of new technology thereby inhibiting agricultural growth. Extension services aimed at increased agricultural growth should have a market-led and evidence-based pluralistic advisory system that is coordinated by the government’s Agricultural and Technical Services division in response to the needs of farmers. This study sought to assess extension ...
Agriculture plays a crucial role in the development of the Indian economy. It accounts for about 19 percent of GDP and about two thirds of the population is dependent on the sector. (Economic Survey, 2009). Recognizing the importance of agriculture sector in India’s development, the Government and the Reserve Bank of India (RBI) have played a vital role in creating a broad-based institutional f...
GPS is the positioning technology of choice for a wide range of land-based applications. Since the mid-1990s GPS products have been on offer for the 'agricultural market'. GPS on its own does not appear to contribute much to improving agricultural productivity. Hence 'precision agriculture' has generally referred to the intergation of GPS within a total system that, for example, uses spatial in...
Dissolved total nitrogen (Nt) and total organic carbon (TOC) exports were measured from 30 catchments and regions draining 76 % of the Canadian landscape in order to estimate reactive N and organic C runoff losses to estuaries and the conditions that control them. N exports from the catchments were lower than measured in most of Europe and the United States due to significantly less agricultura...
"The faster agriculture grows, the faster its relative size declines." That quotation from The Economics of Agricultural Development (Mellor 1966) still captures the essence of agricultural growth and its causal relationship to the structural transformation and aggregate growth of an economy. The quotation suggests that agriculture has a potential for accelerated growth. This suggestion arises ...
The purpose of this study was to quantify antibiotic resistance genes (ARG) in the sediments of the mixed-landscape Cache La Poudre River, which has previously been studied and shown to have high concentrations of antibiotics related to urban and agricultural activities. River sediments were sampled during two events (high-flow and low-flow) from five sites with varying urban and agricultural i...
Best management practices (BMPs) are widely promoted in agricultural watersheds as a means of improving water quality and ameliorating altered hydrology. We used a paired watershed approach to evaluate whether focused outreach could increase BMP implementation rates and whether BMPs could induce watershed-scale (4000 ha) changes in nutrients, suspended sediment concentrations, or hydrology in a...
this study aimed at identifying and analyzing issues and challenges on the agricultural research and technology development under the national innovation framework. the survey consisted of two groups: agricultural researchers of agriculture-research and education organization and all faculty members of public agricultural faculties of ministry of scientific, research and technology. using cochr...
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