Results 181 to 190 of about 291,918 (342)

APLICAÇÃO DE CORRETIVOS E CRESCIMENTO DE OLEAGINOSAS EM SOLOS SALINIZADOS DO SEMIARIDO

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2012
A pesquisa objetiva avaliar o efeito de corretivos nos atributos do solo e no crescimento inicial da mamona (Ricinus communis L.) e do girassol (Helianthus annus L.) cultivados em solos degradados por sais.
Maria Holanda Leite, Rivaldo Vital dos Santos, Artur D V Gomes, Adriana de Fatima. Meira Vital   +3 more
doaj  

Caracterização de solos brasileiros com elevados teores de material orgânico. [PDF]

, 2014
Dentre as classes de solos que ocorrem no território brasileiro, os Organossolos e solos afins, com elevados teores de material orgânico, apresentam pequenas extensão territorial mas têm elevada utilização agrícola e grande importância ambiental.
ANJOS, L. H. C. dos, EBELING, A. G., PEREIRA, M. G., VALLADARES, G. S.   +3 more
core  

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

Advanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang, Xingyue Yang, Zongmeng Yang, Jing Lu, Pin Ho, Wenhong Wang, Yee Sin Ang, Zhenxiang Cheng, Shibo Fang   +8 more
wiley   +1 more source

Alterações físicas e químicas num cambissolo húmico de campo nativo após a correção da acidez

Revista de Ciências Agroveterinárias, 2014
Os agricultores estão introduzindo culturas anuais em áreas de campo nativo, utilizando diferentes sistemas de manejo e métodos de correção da acidez.
André da Costa, Jackson Adriano Albuquerque, Paulo Roberto Ernani, Cimélio Bayer, Liliane Márcia Mertz   +4 more
doaj  

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Profundidade de semeadura, pH, textura e manejo da cobertura do solo na emergência de plântulas de Rottboellia exaltata

, 2012
Patrícia Andréa Monquero, Neriane Hijano, Izabela Orzari, Renan dos Santos Sabbag, Andréia Cristina Silva Hirata   +4 more
openalex   +2 more sources

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

IMPACTOS DE EVENTOS CLIMÁTICOS EXTREMOS NA DINÂMICA DO SOLO: REVISÃO SOBRE PH, REDOX, SALINIDADE, FERTILIDADE [PDF]

Wemerson Leonardo Cruz da Silva, Lourenço Oliveira dos Santos, Maria Gizania de Sales Lima, Eduarda Machado Gomes, Marcela da Cruz Cardoso, Janaína Iris de Azevedo Silva Muniz, Francisco Sérgio Ribeiro dos Santos, Lindomar Pereira da Silva Sales, Eva Silva, Germana Pessoa de Pontes   +9 more
openalex   +1 more source

Potential acidity estimated by SMP pH in soils of the state of Pará Acidez potencial estimada pelo método do pH SMP em solos do estado do Pará

Revista Brasileira de Ciência do Solo, 2013
The use of SMP pH to estimate the potential acidity (H + Al) is more practical than the method of 0.5 mol L-1 calcium acetate for routine laboratory analyses. The objective was to fit an equation to estimate the H + Al from SMP pH values of soils of the State of Pará.
Marcos André Piedade Gama, Gilson Sergio Bastos de Matos, George Rodrigues da Silva, Edilson Carvalho Brasil, Otiniel Ferreira Nunes   +4 more
openaire   +1 more source