Results 81 to 90 of about 56,624 (248)

Phosphorus accumulation and pollution potential in a hapludult fertilized with pig manure

open access: yesRevista Brasileira de Ciência do Solo, 2012
Successive applications of pig litter to the soil surface can increase the phosphorus (P) content and alter its adsorption, promoting P transfer to surface or subsurface waters.
Renato Guardini   +9 more
doaj   +1 more source

Beyond health protection: Estimating the impact of public health insurance on home‐based livestock raising in rural China

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Livestock often serves as self‐insurance against health shocks for rural households in developing countries. However, little is known about how public health insurance affects livestock production decisions. This paper fills the gap by examining the impact of China's New Rural Cooperative Medical Scheme (NRCMS) on household‐level livestock ...
Ran Li
wiley   +1 more source

Agroecology and Transformative Adaptation to Climate Change

open access: yesAsia Pacific Viewpoint, EarlyView.
ABSTRACT This paper examines transformative adaptation to climate change through the EFICAS Project (Eco‐Friendly Intensification and Climate‐resilient Agricultural Systems) implemented across 12 upland communities in northern Laos from 2014 to 2020.
Jean‐Christophe Castella
wiley   +1 more source

СРАВНИТЕЛНА АГРОЕКОЛОГИЧНА ОЦЕНКА НА ТОР ОТ ГОВЕДА И СВИНЕ ПО СЪДЪРЖАНИЕ НА БИОГЕННИ ЕЛЕМЕНТИ

open access: yesЖивотновъдни науки, 2015
The aim of this paper was to study and assess a fresh and stored cattle and pig manure, for a period of 12 months by content of nutrients (N, P, K). Manure samples were collected monthly from the livestock buildings, manure storage and lagoons.
ГЕРГАНА КОСТАДИНОВА
doaj  

Reducing ammonia emissions and nitrate leaching in wheat–maize systems by substituting chemical fertilizers with manure

open access: yesFrontiers in Plant Science
IntroductionAmmonia (NH3) emissions and nitrate (NO3-) leaching from crop fields are major contributors to non-point source environmental pollution.MethodsTo optimize the resource utilization of pig manure and reduce gaseous and liquid nitrogen losses in
Jun Du   +5 more
doaj   +1 more source

Environmentally adjusted productivity growth and shadow prices for dairy farms

open access: yesCanadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract We estimate the environmentally adjusted productivity growth and shadow price for Ontario dairy farms. We use an input‐oriented directional distance function and farm‐level data from 2000 to 2020. First, we find that while GHG emissions per cow increase with higher milk yields, emission intensity decreases as milk yield per cow increases.
Bibek Dahal   +2 more
wiley   +1 more source

THE IMPACT OF MANURE PRODUCTION RIGHTS ON CAPITAL INVESTMENT IN THE DUTCH PIG SECTOR [PDF]

open access: yes
In this paper the effect of manure production rights on investment decisions of Dutch pig farmers is examined. A dynamic optimization model of investment that explicitly takes zero investments into account is augmented by a constraint on production ...
Gardebroek, Cornelis
core   +1 more source

Inventory of ammonia emissions from UK agriculture 2009 [PDF]

open access: yes, 2010
The National Ammonia Reduction Strategy Evaluation System (NARSES) model (spreadsheet version) was used to estimate ammonia (NH3) emissions from UK agriculture for the year 2009.
Chadwick, D.R.   +6 more
core  

Separation of Liquid Pig Manure

open access: yes, 1999
LANDTECHNIK, Bd. 54 Nr. 2 (1999)
openaire   +1 more source

Food System Change, Development, and Vulnerability in Semi‐Agricultural Areas of Tibet

open access: yesCulture, Agriculture, Food and Environment, EarlyView.
ABSTRACT With social and economic development, food systems have significantly changed on the Tibetan plateau over the last two decades. However, the impact of dietary change on Tibetans and their communities remains less well known. This article examines how food change happens in semi‐agricultural areas of eastern Tibet within the context of ...
Cairang Gezang
wiley   +1 more source

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