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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 40
Primeira ... 12 ... Última
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Imprime registro no formato completo
Atividade enzimática do solo com Bradyrhizobium e Azospirillum nas sementes de soja e braquiária Infoteca-e
FACHINELLI, R.; ABREU, H. K. A. de; MELO, T. S.; CORREIA, M. V.; CECCON, G..
bitstream/item/189698/1/ORAL1.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Química do Solo; Microbiologia do Solo; Soil chemistry; Soil microorganisms.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1102946
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Biocalcification and siltation in paddy soils International Rice Research Institute
Asio, Victor B..
131 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Paddy soils; Soil chemistry; Sedimentation; Calcification; Soil fertility; Soil profiles.
Ano: 1987 URL: http://hdl.handle.net/123456789/1354
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Capacidade de troca de cátions da fração argila em latossolo amarelo com diferentes texturas, em Paragominas, PA. Infoteca-e
SANTOS, P. L. dos; MARTINS, J. S.; VALENTE, M. A.; OLIVEIRA JUNIOR, R. C. de.
bitstream/item/32761/1/CPATU-BP172.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Troca de cations; Ferrasoils.; Latossolo Amarelo; Mineralogia; Química do Solo; Solo Argiloso; Solo.; Clay soils; Cations; Mineralogy; Soil chemistry; Soil..
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374973
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Caracterização química da solução de um latossolo e riscos de toxidez do alumínio para o cultivo de leucena. Infoteca-e
OLIVEIRA, M. I. L. de; BECQUER, T.; ANDRADE, L. R. M. de; KARIA, C. T.; RAMOS, A. K. B..
bitstream/CPAC-2009/26842/1/p2005_43.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Feed legumes.; Acidez do Solo; Fertilidade do Solo; Leguminosa Forrageira; Química do Solo.; Soil fertility; Soil pH.; Soil chemistry.
Ano: 2006 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569455
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Cation-anion balances and chemical changes in the rhizosphere of rice in an iron toxic soil International Rice Research Institute
Razafinjara, Aime Lala.
xv, 110 l. : ill. Thesis (Ph. D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice soils; Soil chemistry; Cations; Anions; Iron.
Ano: 1999 URL: http://hdl.handle.net/123456789/515
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Changes in soil chemical and physical properties in pasture fertilised with liquid swine manure Scientia Agricola
Scheid,Douglas Leandro; Silva,Rodrigo Ferreira da; Silva,Vanderlei Rodrigues da; Ros,Clovis Orlando Da; Pinto,Marlo Adriano Bison; Gabriel,Márcia; Cherubin,Maurício Roberto.
ABSTRACT: Chemical and physical properties of soil can be altered with the successive application of liquid swine manure (LSM), also known as slurry. Therefore, monitoring the impact of LSM is essential to an assessment of the potential agronomic and environmental benefits and risks associated with management practices. The aim of this study was to evaluate the effects of LSM on the chemical and physical attributes of soil under pasture (Cynodon spp.), located in southern Brazil. Four areas were sampled: three areas cultivated with Cynodon spp. pasture with successive applications of 200 m3 ha–1 y–1 of LSM for three, eight and 15 years; and untreated native forest as a reference. The soil attributes evaluated were: organic carbon (OC), active (pH water)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Management of organic residues; Organic carbon; Nutrient availability; Soil compaction; Soil chemistry.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000501401
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Characteristics of acid sulfate soils in the Mekong delta, Vietnam, and their potential for rice cultivation International Rice Research Institute
Do Thi Thanh Ren.
225 p. : ill. Thesis (M.S.) -- University of Can Tho
Tipo: Thesis Palavras-chave: Rice; Acid sulfate soils; Soil chemistry; Phosphorus; Sorption isotherms; Nutrient uptake; Vietnam.
Ano: 1987 URL: http://hdl.handle.net/123456789/1330
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Characteristics of acid sulfate soils in the Philippines and their potential for rice cultivation International Rice Research Institute
Solivas, Josefina L..
222 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Acid sulfate soils; Soil chemistry; Soil properties; Philippines.
Ano: 1987 URL: http://hdl.handle.net/123456789/1263
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Characteristics of selected soils of Madagascar and influence of water regime on the chemical changes and growth of rice on a flooded iron toxic soil International Rice Research Institute
Razafinjara, Aime Lala.
183 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Soil; Soil properties; Soil water regimes; Soil chemistry; Plant growth; Flooded conditions; Madagascar.
Ano: 1990 URL: http://hdl.handle.net/123456789/998
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Chemical and physio-chemical changes in a flooded acid sulfate soil and the growth and yield of rice International Rice Research Institute
Mai-Thi-My-Nhung.
106 leaves : photos. Thesis (M.S.) -- University of the Philippines
Tipo: Thesis Palavras-chave: Rice; Acid sulfate soils; Soil chemistry; Plant physiology.
Ano: 1965 URL: http://hdl.handle.net/123456789/442
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Chemical kinetics of aerobic soils and rice growth International Rice Research Institute
Kundu, Dilip Kumar.
346 l. : ill. Thesis (Ph.D.) -- Indian Agricultural Research Institute
Tipo: Thesis Palavras-chave: Rice; Soil; Soil chemistry; Kinetics; Aerobic conditions; Soil-plant interactions; Plant growth; Plant nutrition.
Ano: 1987 URL: http://hdl.handle.net/123456789/1311
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Chemical retardation of the reduction of flooded soils and its effects on the growth of rice plant International Rice Research Institute
Yuan, Wen Lin.
85 leaves : charts. Thesis (M.S.) -- University of the Philippines
Tipo: Thesis Palavras-chave: Rice; Rice soils; Soil chemistry; Plant growth; Wetland soils.
Ano: 1965 URL: http://hdl.handle.net/123456789/452
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Contribution of Topography and Incident Solar Radiation to Variation of Soil and Plant Litter at an Area with Heterogeneous Terrain Rev. Bras. Ciênc. Solo
Nettesheim,Felipe Cito; Conto,Tiago de; Pereira,Marcos Gervasio; Machado,Deivid Lopes.
Natural processes that determine soil and plant litter properties are controlled by multiple factors. However, little attention has been given to distinguishing the effects of environmental factors from the effects of spatial structure of the area on the distribution of soil and litter properties in tropical ecosystems covering heterogeneous topographies. The aim of this study was to assess patterns of soil and litter variation in a tropical area that intercepts different levels of solar radiation throughout the year since its topography has slopes predominantly facing opposing geographic directions. Soil data (pH, C, N, P, H+Al, Ca, Mg, K, Al, Na, sand, and silt) and plant litter data (N, K, Ca, P, and Mg) were gathered together with the geographic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical forest; Spatial factors; Environmental factors; Slope geographic orientation; Soil chemistry; Litter chemistry.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300750
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Correlation of soil properties with weed ocurrence in sugarcane areas Planta Daninha
Lousada,L.L.; Freitas,S.P.; Marciano,C.R.; Esteves,B.S.; Muniz,R.A.; Siqueira,D.P..
Soil properties can influence weed community composition and weed density agricultural area. Knowing this relationship would allow to choose the best strategy for the control of such plants. This study aimed to investigate the correlation between weed density and chemical and physical attributes of soil in three areas (UCO, USC, and UPA) for commercial sugarcane cultivation in Campos dos Goytacazes, RJ. Grids of 40 m x 40 m were established in the areas, and soil samples were collected at the intersection points for physical and chemical analysis and evaluation of the soil seed bank (SSB), followed by a phyto-sociological survey of the weeds present. Samples were collected during two periods: February/March and June/July, 2010. SSB presented the greatest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil physics; Soil chemistry; Seed bank; Phyto-sociological survey.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400002
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Decomposition of 14C-labeled rice straw in 3 submerged soils under controlled laboratory conditions International Rice Research Institute
Capistrano, Ricardo F..
99 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Soil; Rice straw; Degradation; Submergence; Soil chemistry.
Ano: 1988 URL: http://hdl.handle.net/123456789/1232
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Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil Agronomy
Rabel, Diego Oliveira; Motta, Antonio Carlos Vargas; Barbosa, Julierme Zimmer; Melo, Vander Freitas; Prior, Stephen Arthur.
Due to potential crop toxicity, high aluminum (Al) availability requires increased attention when preparing agricultural soils. However, research examining the relationship between depth distribution of Al and soil weathering has received little priority in Brazil, particularly regarding the number of soil profiles investigated. This study analyzed 38 acid soils selected from Soil Surveys in southern Brazil to identify and isolate the effects of organic and mineral components on depth distribution of exchangeable Al extracted with KCl (AlKCl). These soil profiles were divided into the following three groups based on AlKCl depth distribution: Group I – decrease with depth; Group II – little variation with depth; and Group III – increase with depth. High...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ki index; Organic matter; Smectite; Kaolinite; Al oxides; Lime requirement.; Soil chemistry; Soil genesis; Morphology and classification; Soil fertility.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39320
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Diffusion mechanisms associated with ammonia volatilization in lowland rice International Rice Research Institute
Sivaprasad, Bandarupalli.
218 l. : ill. Thesis (Ph.D.) -- Indian Agricultural Research Institute
Tipo: Thesis Palavras-chave: Rice; Soil; Ammonia; Volatilization; Diffusion; Soil chemistry; Nitrogen; Losses from soil; Lowlands; Lowland rice.
Ano: 1988 URL: http://hdl.handle.net/123456789/1190
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Dinamica do carbono da biomassa microbiana em cinco epocas do ano sob diferentes sistemas de manejo do solo no cerrado. Infoteca-e
FERREIRA, E. A. B.; RESCK, D. V. S.; RAMOS, M. L. G.; GOMES, A. C..
bitstream/CPAC-2009/24335/1/p2002_30.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Biomassa; Cerrado; Manejo do Solo; Matéria Orgânica; Química do Solo; Solo.; Biomass; Organic matter; Soil chemistry; Soil; Soil management..
Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567630
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Dinamica do carbono da biomassa microbiana em cinco profundidades de um latossolo no cerrado sob diferentes sistemas de manejo. Infoteca-e
FERREIRA, E. A. B.; RESCK, D. V. S.; GOMES, A. C.; RAMOS, M. L. G..
bitstream/CPAC-2009/24364/1/p2002_29.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Biomassa; Cerrado; Manejo do Solo; Matéria Orgânica; Química do Solo; Solo.; Biomass; Organic matter; Soil chemistry; Soil; Soil management..
Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567663
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Effects of pH, redox condition, and temperature on silica sorption in Philippine and Korean rice soils International Rice Research Institute
Lee, Sang-Eun.
136 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Rice soils; Soil pH; Redox reactions; Soil temperature; Silica; Sorption; Soil chemistry; Philippines; Korea Republic.
Ano: 1991 URL: http://hdl.handle.net/123456789/943
Registros recuperados: 40
Primeira ... 12 ... Última
 

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