Results 81 to 90 of about 20,857 (258)

Chemical and physical soil attributes in integrated crop-livestock system under no-tillage

open access: yesRevista Ciência Agronômica
Although integrated crop-livestock system (ICLS) under no-tillage (NT) is an attractive practice for intensify agricultural production, little regional information is available on the effects of animal grazing and trampling, particularly dairy heifers ...
Hernani Alves da Silva   +5 more
doaj   +1 more source

Gap assessment in current soil monitoring networks across Europe for measuring soil functions

open access: yesEnvironmental Research Letters, 2017
Soil is the most important natural resource for life on Earth after water. Given its fundamental role in sustaining the human population, both the availability and quality of soil must be managed sustainably and protected.
J P van Leeuwen   +9 more
doaj   +1 more source

Relação entre a variabilidade espacial das frações granulométricas do solo e a produtividade do feijoeiro sob plantio direto Relationship between the spatial variability of particle-size fractions of soil and common bean yield under no-tillage

open access: yesRevista Brasileira de Ciência do Solo, 2007
A distribuição granulométrica do solo exerce grande influência na produtividade vegetal. No ano agrícola de 2002/2003, foram analisados atributos da planta: produtividade de grãos (PG) e da palha (PP) do feijoeiro; e do solo: teores de argila, silte e ...
Aline Emy Kitamura   +2 more
doaj   +1 more source

EFFECTS OF SOIL TILLAGE AND CROP ROTATION SYSTEMS ON SOIL PHYSICAL ATTRIBUTES

open access: yes, 2007
The objective of this study was to evaluate the effects of soil tillage and crop rotation systems on soil physical attributes. The experiment was conducted for five consecutive years and ten crop seasons in a dystrophic Oxisol in Santo Antônio de Goiás, Goiás State, Brazil, in a completely randomized design with four replications arranged in a 2 x 4 ...
Neto, Américo Nunes da Silveira   +3 more
openaire   +1 more source

Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China

open access: yesAdvanced Science, EarlyView.
This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang   +3 more
wiley   +1 more source

ORGANIC CARBON AND CARBON STOCK: RELATIONS WITH PHYSICAL INDICATORS AND SOIL AGGREGATION IN AREAS CULTIVATED WITH SUGAR CANE

open access: yesTropical and Subtropical Agroecosystems, 2017
Soil organic carbon and carbon stock influence, directly or indirectly, most of soil aggregate stability indicators. The objective of this study was to quantify the production of dry biomass (DB), total organic carbon (TOC) and carbon stock (CStk) in ...
Diego Tolentino de Lima   +5 more
doaj  

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals

open access: yesAdvanced Science, EarlyView.
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray   +3 more
wiley   +1 more source

Spectral regionalization of tropical soils in the estimation of soil attributes

open access: yesRevista Ciência Agronômica, 2016
Conventional soil analysis produces large amount of residues and demand resources and time consuming. The construction of soil spectral database for estimating soil attributes is the newest alternative on soil mapping.
José A. M. Demattê   +4 more
doaj   +1 more source

An Implantable Optogenetics‐Engineered Hydrogel for Amelioration of Rheumatoid Arthritis through Light‐Controlled Metabolic Reprogramming of Synovial Macrophages

open access: yesAdvanced Science, EarlyView.
An implantable hydrogel is designed to enable in situ and on‐demand secretion of GLP‐1 in synovium through blue light irradiation to activate GLP‐1R/HK2/VDAC1 pathway for upregulating tricarboxylic acid cycle and oxidative phosphorylation in macrophage, facilitating tissue repair and bone erosion recovery.
Dahai Hu   +10 more
wiley   +1 more source

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