نتایج جستجو برای: agricultural total factorproductivity

تعداد نتایج: 890560  

Journal: :New biotechnology 2010
Drew L Kershen

Agricultural trade between nations is a significant proportion of total international trade. Agricultural trade in transgenic crops faces extra complications due to the existence of domestic and international regimes that focus specifically on agricultural biotechnology. These specialized regimes create legal and commercial challenges for trade in transgenic crops that have significant implicat...

2015
Benjamin J. Booth Mary H. Ward Mary E. Turyk Leslie T. Stayner

BACKGROUND There is limited evidence for an association between agricultural pesticide exposure and certain types of childhood cancers. Numerous studies have evaluated exposure to pesticides and childhood cancer and found positive associations. However, few studies have examined the density of agricultural land use as a surrogate for residential exposure to agricultural pesticides and results a...

2014
Dan Pan

Agricultural nutrients play a critical role in food production and human nutrition in China. Against this backdrop, agricultural extension services are essential for providing farmers with knowledge and information about nutrient management. By using a propensity score-matching (PSM) approach, this study examines the impact of agricultural extension on farmer nutrient management behavior. Surve...

2015
Margaret M. Kalcic Jane Frankenberger Indrajeet Chaubey

Targeting of agricultural conservation practices to the most effective locations in a watershed can promote wise use of conservation funds to protect surface waters from agricultural nonpoint source pollution. A spatial optimization procedure using the Soil and Water Assessment Tool was used to target six widely used conservation practices, namely no-tillage, cereal rye cover crops (CC), filter...

2013
Fatemeh Panahi Iraj Malekmohammadi

Problem Statement Agricultural water management (AWM) is not a goal in itself but part of a process of resource management that provides a critical input to agricultural production and farmer incomes. Today, huge losses in irrigation systems and poor water management practices worsen the water crises that already exist. Water users were surveyed in order to explore their perception about the fa...

Journal: :Sustainability 2023

Improving agricultural green total factor productivity is important for achieving high-quality economic development and the SDGs. Digital inclusive finance, which combines advantages of digital technology represents a new scheme that can ease credit constraints information ambiguity in production. First, this study focused on agro-ecological functions; we incorporated carbon sequestration emiss...

Journal: :international journal of agricultural management and development 2012
ali bagherzadeh

nowadays, agricultural r&d provides new and developed technologies to create modern agricultural producing methods. during recent years, improving agricultural productivity is affected by not only domestic r&d investments but also foreign countries r&d investments. nowadays, according to new growth models, r&d is the base of productivity. recent economic theories consider agricu...

Journal: :Frontiers in sustainable food systems 2022

The agricultural sector faces a food crisis and major challenges in green sustainable development, digital technology is an important countermeasure. In this paper, “digital technology” used as keyword to construct regional digitalization level indicator. China's provincial panel data from 2013 2020 are adopted samples explore the impact of levels on total factor productivity its mechanism. stu...

Journal: :MMWR. Morbidity and mortality weekly report 1994

The National Institute for Occupational Safety and Health (NIOSH) requests assistance in preventing organic dust toxic syndrome (ODTS), an acute respiratory illness in agricultural workers who inhale contaminated organic dust. This Alert describes four case reports in which a total of 29 agricultural workers developed ODTS following inhalation of organic dusts contaminated with microorganisms. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید