نتایج جستجو برای: agricultural lands

تعداد نتایج: 109751  

2015
Ying Ouyang Theodor D. Leininger Matt Moran

Surface water quality in the Lower Mississippi River Basin (LMRB) and the adjacent Gulf of Mexico has degraded over the past several decades primarily due to deforestation to agricultural lands and the loss of wetlands. This study investigated the benefits of reforestation upon nitrate–nitrogen (NO 3 N) and orthophosphate (PO 4 ) load reductions in the Lower Yazoo River Watershed (LYRW) within ...

2000
Liette Vasseur Caroline Cloutier Colette Ansseau

In Quebec, municipal sewage sludge application on agricultural lands is relatively recent and there are many concerns related to potential contamination and loss of plant productivity. This study aimed at monitoring the impacts of repeated, long-term application of sewage sludge on agricultural lands under operating field conditions. Eight paired study sites (treated and control) in three regio...

2018
Gabrielle Rudi Jean-Stéphane Bailly Fabrice Vinatier

To optimize ecosystem services provided by agricultural drainage networks (ditches) in headwater catchments, we need to manage the spatial distribution of plant species living in these networks. Geomorphological variables have been shown to be important predictors of plant distribution in other ecosystems because they control the water regime, the sediment deposition rates and the sun exposure ...

2017
Brad G. Peter Leah M. Mungai Joseph P. Messina Sieglinde S. Snapp

Modern plant breeding tends to focus on maximizing yield, with one of the most ubiquitous implementations being shorter-duration crop varieties. It is indisputable that these breeding efforts have resulted in greater yields in ideal circumstances; however, many farmed locations across Africa suffer from one or more conditions that limit the efficacy of modern short-duration hybrids. In view of ...

Journal: :Journal of environmental quality 2013
Michael Marra Travis Keene Jeff Skousen Thomas Griggs

The high cost of transportation fuels and the environmental risks associated with acquiring and using nonrenewable energy sources have created a demand for developing renewable bioenergy crops. Switchgrass ( L.), a warm-season perennial grass, is a promising feedstock due to its high biomass production under a wide range of growing conditions and its satisfactory forage quality and chemical com...

2005
Gary Martin

The hoe—the sound of the word is sweet...the hoe makes everything prosper, the hoe makes everything flourish. The hoe is good barley...the hoe is brick moulds, the hoe has made people exist. It is the hoe that is the strength of young manhood. The hoe and the basket are the tools for building cities. It builds the right kind of house, it cultivates the right kind of fields. It is you, hoe, that...

2009
Vance Russell Chris Rose Miles DaPrato

Approximately 70 percent of the contiguous United States is in private lands with half of this total in row crop or rangelands. Audubon California’s Landowner Stewardship Program engages with farmers and ranchers on conservation and restoration projects in a manner compatible with existing agricultural operations. To assess the success of these efforts, Audubon, University of California, Davis,...

2005
R. P. STRAKA

CROXTON, W. C. 1928 Revegetation of Illinois coal stripped lands. Ecology, 9, 155-175. HEADLEE, A. J. W. 1955 Characteristics of minable coals of West Virginia. West Virginia Geological Survey, Pt. VI, The structure of bituminous coals, 13(A) 123-149. KOHNKE, H. 1950 The reclamation of coal mine spoils. Advances in Agron., 2, 317-349. PATERSON, D. D. 1939 Statistical technique in agricultural r...

2017
Mutlu Ozdogan Curtis E. Woodcock Guido D. Salvucci Hüseyin Demir MUTLU OZDOGAN CURTIS E. WOODCOCK GUIDO D. SALVUCCI

Changes in summer irrigated cropland acreage and related water use are estimated from satellite remote sensing and ancillary data in semi-arid Southeastern Turkey where traditionally dry agricultural lands are being rapidly transformed into irrigated fields with the help of water from the Euphrates-Tigris Rivers. An image classification methodology based on thresholding of Landsat NDVI images f...

2012

This paper present lease agreement regulations in selected European countries. The lease agreement has a long history and now is one of the main ways to manage agricultural lands in Europe. The analysis of individual regulations, which has been done, indicates that this agreement is very important to build social relations in agriculture and society. This article provides an analysis of the leg...

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