Results 91 to 100 of about 128,478 (361)
, 2010 This publication is for the gardener who wants to gain a more thorough understanding of soil basics, including soil components, texture, structure, water permeability and chemistry.
Jahns, Thomas R.
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The activation of hydrogen by excited mercury atoms [PDF]
, 1925 That mercury atoms excited by absorption of the line 2537Å are able to activate various kinds of atoms by collisions of the second kind has been shown in several different ways.
Mitchell, Allan C. G.
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Advanced Energy and Sustainability Research, EarlyView.High‐surface‐area graphene aerogel‐based electrodes are developed using a hydrothermal method for supercapacitor applications. The composite shows a high specific capacitance of 333.3 F g−1 at a current density of 0.2 A g−1, with energy and power densities of 33.3 and 0.59 kW kg−1, respectively.
Sahar Yasami +3 more
wiley +1 more source
Chemical composition of the humus layer, mineral soil and soil solution of 200 forest stands in the Netherlands in 1995 [PDF]
A nationwide assessment of the chemical composition of the soil solid phase and the soil solution in the humus layer and two mineral layers (0-10 cm and 10-30 cm) was made for 200 forest stands in the year 1995.
Leeters, E.E.J.M., Vries, W., de
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Mitigation of GHGs Emission From Soils by a Catalyzed In-Situ Photo-Oxidative Polymerization of Soil Organic Matter [PDF]
, 2010 Agricultural lands under food and bio-energy crops, managed grass and permanent crops including agro-forestry, occupy about 40-50% of the Earth's land surface^1^. In 2005, agriculture accounted for an estimated emission of 5.1 to 6.1 GtCO2-eq/yr (10-
Alessandro Piccolo, Riccardo Spaccini
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Research Reports from the Programme for Belize Archaeological Project, Volume Three [PDF]
, 2009 Table of Contents : Archaeological Investigations of the Programme for Belize Archaeological Project: An Introduction to Volume Three / by Fred Valdez, Jr. and Rissa M.
Trachman, Rissa M., Valdez, Fred Jr
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Agribusiness, EarlyView.ABSTRACT Smallholder agriculture remains a cornerstone for economic development and poverty reduction in Latin America. Their transition to sustainable agricultural production is critical in the face of the environmental challenges posed by conventional farming practices and is a key pathway to achieving the United Nations' Sustainable Development ...
Gabriela Carbajo‐Alvarez +2 more
wiley +1 more source
The chemistry of humus, with special reference to the relation of humus to the soil and to the plant [PDF]
Journal of the Franklin Institute, 1913 n ...
openaire +2 more sources
Emission of Climate-Relevant Gases in Organic and Conventional Cropping Systems [PDF]
, 2008 In 81 commercial farms in Germany, emissions of the greenhouse gases CO2, CH4 and N2O from crop production have been computed by model-based analyses. The considered influence factors comprise farm structure, mass and energy inputs as well as cultivation
Huelsbergen, K.-J., Kuestermann, B.
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Agribusiness, EarlyView.ABSTRACT Agricultural soils offer great potential for carbon sequestration through humus formation. One way to motivate farmers to build up humus is through humus programs. These are still at an early stage of development, poorly explored, and the number of participating farmers is low. Our aim is to explain the heterogeneity of farmers' willingness to
Julia B. Block +2 more
wiley +1 more source