Results 121 to 130 of about 171,989 (251)

Green manure in coffee systems in the region of Zona da Mata, Minas Gerais: characteristics and kinetics of carbon and nitrogen mineralization. [PDF]

open access: yes, 2008
The use of green manure may contribute to reduce soil erosion and increase the soil organic matter content and N availability in coffee plantations in the Zona da Mata, State of Minas Gerais, in Southeastern Brazil.
AITA C.   +45 more
core   +4 more sources

Evaluation of the reserve effect in a marine protected area in Sagres (PNSACV) [PDF]

open access: yes, 2019
Marine Protected Areas (MPAs), especially when set up as marine reserves, have been found beneficial for fish communities and species worldwide. Evaluation of MPA effects needs to be done to understand whether existing protection measures are efficient ...
Běláčková, Adéla
core  

Plasticidade fenotípica de Baccharis genistelloides subsp. crispa (Spreng.) Joch. Müll. (2006) - Asteraceae - sob manejo orgânico

open access: yesRevista Brasileira de Plantas Medicinais, 2014
O objetivo deste trabalho, relacionado a produção orgânica, utilizou preparados homeopáticos visando incremento na biomassa e no teor de flavonóides em plantas dióicas de carqueja.
L.A. Sousa   +5 more
doaj   +1 more source

Pengaruh Emisi Partikel Ultrafine Asap Pembakaran Biomassa Terhadap Gambaran Mikroskopis Organ Ginjal Mencit (Mus Musculus) [PDF]

open access: yes, 2014
Partikel ultrafine merupakan partikel yang berukuran <0,1 µm. Partikel ultrafine dapat dihasilkan dari emisi asap pembakaran biomassa. Partikel ultrafine dapat masuk kedalam alveolus paru-paru melalui sistem pernafasan, sehingga dapat terbawa kedalam ...
-, S. (suaibah)
core  

Biosorpsi Kation Tembaga (II) Dan Seng (II) Oleh Biomassa Alga Hijau Spirogyra Subsalsa [PDF]

open access: yes, 2011
Dalam kajian ini, telah diteliti biosorpsi ion logam berat, khususnya kation Cu 2+ dan Zn 2+ dalam larutan berair dan air limbah menggunakan biomassa ganggang hijau Spirogyra subsalsa.
Mawardi, M. (Mawardi)
core   +3 more sources

PENGARUH PEMBERIAN PROBIOTIK BERBEDA DALAM SISTEM AKUAPONIK TERHADAP FCR (FEED CONVERTION RATIO) DAN BIOMASSA IKAN LELE (Clarias sp.)

open access: yesJournal of aquaculture and fish health, 2019
Ikan lele (Clarias sp.) merupakan komoditas perikanan yang sangat populer di kalangan masyarakat Indonesia. Meningkatnya produksi ikan lele berakibat pada penambahan area lahan budidaya dan penggunaan air, sehingga perlu dibutuhkan suatu teknologi dalam ...
Febryan Adi Sukoco   +2 more
semanticscholar   +1 more source

Quantificação e caracterização energética da madeira e casca de espécies do cerrado.

open access: yesCiência Florestal, 2010
Em uma faixa de cerrado sensu stricto, de 63,56 ha, da Fazenda Água Limpa, de propriedade da Universidade de Brasília-DF, foram delimitadas dez parcelas de 20 x 50 m cada nas quais se identificaram e medam as alturas totais e o diâmetro, tomado a 30 cm ...
Ailton Teixeira do Vale   +2 more
doaj   +1 more source

Biosorpsi Dan Reduksi Krom Limbah Penyamakan Kulit Dengan Biomassa Fusarium SP Dan Aspergillus Niger (Biosorpstion and Reduction of Chromium Bearing Tannery Wastewater Using the Biomass of Fusarium SP. and Aspergillus Niger) [PDF]

open access: yes, 2001
Tujuan penelitian ini ialah untuk membuktikan bahwa biomassa Fusarium sp dapat mereduksi Cr(VI), dan biomassa Aspergillus Niger dapat digunakan untuk mengambil ion krom dari larutan. Fusarium.sp ditumbuhkan pada media cair kentang dekftosa cair, ditambah
Djojowidagdo, S. (S)   +3 more
core  

Seasonal growth of "algodão-bravo" (Ipomoea carnea spp. fistulosa) Crescimento sazonal do "algodão-bravo" (Ipomoea carnea spp. fistulosa)

open access: yesPesquisa Agropecuária Brasileira, 1999
Ipomoea carnea spp. fistulosa, a native woody perennial, is capable of spreading rapidly over seasonally flooded grassland in the Brazilian Pantanal, South America's largest wetland, thus conflicting with the local cattle ranching. I.
Rainer Haase
doaj   +1 more source

Fish assemblages across the Mediterranean Sea and the effects of protection from fishing = I Popolamenti ittici nel Mediterraneo e gli effetti della protezione dall’impatto della pesca [PDF]

open access: yes, 2010
Several studies have assessed the effectiveness of individual marine protected areas (MPAs) in protecting fish assemblages, but regional assessments of multiple parks are scarce.
Ballesteros, Enric   +10 more
core  

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