نتایج جستجو برای: agricultural structure

تعداد نتایج: 1663136  

Journal: :Sustainability 2022

Based on the Peking University Digital Financial Inclusion Index and 2011–2018 provincial panel data, this paper discusses mechanism of digital financial inclusion agricultural green total factor productivity from both theoretical empirical perspectives. The result shows that can significantly increase China’s productivity, optimization industry structure bring a significant “structural growth ...

Adel Abdollahi, Valiollah Rostamalizadeh

Iran has experienced significant changes in the distribution of employed population of ruralareas in major professional categories in the years 1956 to 2006. Accordingly, it is important to studythe changes in occupational structure, factors influencing these changes, and their implications. Themethodology of this study is documentary and secondary analysis. Moreover, in order to explain whythe...

Journal: :American journal of botany 2014
Katherine E Waselkov Kenneth M Olsen

UNLABELLED • PREMISE OF THE STUDY The evolution of invasiveness has been extensively studied in natural ecosystems; however, far less is known about the evolution of agricultural invasiveness, despite the major economic impact of weeds on crop productivity. Examining the population structure of recently arisen weeds can provide insights into evolutionary avenues to invasion of agroecosystems....

Journal: :Journal of economic entomology 2016
Kevin B Rice Rachael R Troyer Kristal M Watrous John F Tooker Shelby J Fleischer

Landscape structure and diversity influence insect species abundance. In agricultural systems, adjacent crop and non-crop habitats can influence pest species population dynamics and intensify economic damage. To investigate the influence of landscape factors on stink bug damage in agricultural systems, we assessed stink bug damage from 30 processing tomato fields in the mid-Atlantic United Stat...

2012
M. Svatoš

Despite the continually growing value of agricultural trade of the Czech Republic, Hungary, Slovakia and Poland, agricultural trade in the case of all of the countries of the Visegrad group represents only a marginal part of the total merchandise trade. The agricultural trade of the individual analyzed countries is, both in terms of the commodity structure as well as the territorial structure, ...

Journal: :اقتصاد و توسعه کشاورزی 0
ابوالقاسم شریف زاده غلامحسین عبدالله زاده مهنوش شریفی

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...

2010
Jennifer S. James Julian M. Alston Philip G. Pardey Matthew A. Andersen

The structure of U.S. agricultural production changed dramatically during the 20 Century. Major technological innovations transformed the relationship between agricultural inputs and outputs, and contributed to rapid increases in agricultural productivity. However, evidence is mounting that suggests we have entered a new era, with substantially lower rates of productivity growth. In this articl...

2009
Zongzhang Li Xiaomin Liu

This paper studies the effects of rural infrastructure development on agricultural production technical efficiency, using data from the second agricultural census of China. Employing Data Envelopment Analysis, this paper first estimates agricultural production technical efficiency of each administrative area of China. A Tobit model is then applied to study the effects on agricultural production...

The realization of sustainable development depends on the efficient use of energy resources. Energy consumption productivity and efficiency are among important indices that play a critical role in explaining the behavior of energy consumption structure of different economic sectors, which in turn, plays a key role in policy making. From among economic sectors, the agriculture sector, as an impo...

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