Results 51 to 60 of about 623,675 (214)
Planta Daninha, 2005 Os objetivos desta pesquisa foram fazer o levantamento da população vegetativa e determinar o número de sementes viáveis e sua distribuição no perfil do solo em área sob dois sistemas de manejo de solo.
A.L.S. Lacerda +2 more
doaj +1 more source
, 2003 The purpose of this resource is to measure the bulk density of each horizon in a soil profile. In the field, students collect three soil samples from each horizon in a soil profile using a container with a measured volume.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
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The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils [PDF]
, 2016 pre-printRenovation of long-term grassland is associated with a peak in soil organic N mineralisation which, coupled with diminished plant N uptake can lead to large gaseous and leaching N losses.
Bourdin, F. +5 more
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Frontiers in Microbiology, 2017 Paddy rice fields occupy broad agricultural area in China and cover diverse soil types. Microbial community in paddy soils is of great interest since many microorganisms are involved in soil functional processes.
Ren Bai +9 more
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Nitrogen loss assessment and environmental consequences in the loess soil of China [PDF]
, 2003 Attention is focused on fertilizer nitrogen loss and the environmental consequences in Shaanxi Province in loess region of China, including N losses to the atmosphere via ammonia volatilization, nitrification and denitrification, N losses to groundwater ...
Tong, Yanan
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Distribution and origin of major and trace elements (particularly REE, U and Th) into labile and residual phases in an acid soil profile (Vosges Mountains, France). [PDF]
, 2004 A seven step sequential extraction procedure has been conducted on a podzolic soil profile from the Vosges Mountains in order to determine the ability of several elements to be released to the environment.
Aubert, Dominique +2 more
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The soils of the southeastern sector of Egmont National Park [PDF]
, 1970 The soils of the southeastern slopes of Egmont National Park, Taranaki, are youthful in absolute age and also in soil development. They are classed as recent soils on a parent material basis: andesitic tephras, alluvium, and peat with interbedded tephra.
Tonkin, Philip J.
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Simulating infiltration processes into fractured and swelling soils as triggering factors of landslides [PDF]
, 2013 The influence of rainfall in triggering landslides is a widely discussed topic in scientific literature. The slope stability of fractured surface soils is often influenced by the soil suction.
Galeandro, A, Simeone, V, Šimunek, J
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Metabolite profiling of non‐sterile rhizosphere soil [PDF]
The Plant Journal, 2017 SummaryRhizosphere chemistry is the sum of root exudation chemicals, their breakdown products and the microbial products of soil‐derived chemicals. To date, most studies about root exudation chemistry are based on sterile cultivation systems, which limits the discovery of microbial breakdown products that act as semiochemicals and shape microbial ...
Pétriacq +10 more
openaire +4 more sources
Soil Science Annual, 2019 The research was carried out continuously since 1923 in a permanent fertilisation experiment at the Experimental Station of SGGW in Skierniewice. The objective of the research was to determine the effect of long-term fertilisation (Ca, CaNPK, NPK) and ...
Stępień Wojciech, Kobiałka Monika
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