Results 11 to 20 of about 1,666 (90)

Tamanho de amostra para a estimação da média do comprimento, diâmetro e massa de sementes de feijão de porco e mucuna cinza [PDF]

, 2012
O objetivo deste trabalho foi determinar o tamanho de amostra necessário para a estimação da média do comprimento, dos diâmetros maior e menor e da massa de sementes de feijão de porco (Canavalia ensiformis) e de mucuna cinza (Stizolobium cinereum).
Alberto Cargnelutti Filho, André Luis Fick, Bruna Mendonça Alves, Cláudia Burin, Giovani Facco, Marcos Toebe   +5 more
core   +2 more sources

Fornecimento de nitrogênio por plantas de cobertura de inverno e de verão para o milho em sistema de plantio direto Nitrogen supply by winter and summer cover plants to corn in no-till system

Ciência Rural, 1997
Em experimento de campo num solo Podzólico vermelho-amarelo, textura superficial arenosa, localizado ná área experimental do Departamento de Solos da Universidade Federal de Santa Maria, foi avaliado o efeito de espécies de cobertura de inverno e de ...
Amauri Nelson Beutler, Flavio Luiz Foletto Eltz, Antônio Carlos Rabenschlag de Brum, Thomé Lovato   +3 more
doaj   +2 more sources

Plant residues: short term effect on sulphate, borate, zinc and copper adsorption by an acid oxisol

Brazilian Archives of Biology and Technology, 2003
Laboratory experiments were carried out to examine the effects of plant residues on Cu, Zn, B and S adsorption by an acidic oxisol. The plant residues were: black oats (Avena strigosa), oil seed radish(Raphanus sativus), velvet beans (Stizolobium ...
Dias Ana Cristi Basile, Pavan Marcos Antonio, Miyazawa Mário, Zocoler Décio Carlos   +3 more
doaj   +2 more sources

Effect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region

, 2017
No-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of ...
A. Passos, A. M. Aker, Rogerio Sebastiao Correa Da, Costa, F. D. Santos, Vivianni Pacheco Dantas Leite, A. L. Marcolan   +6 more
semanticscholar   +1 more source

Perdas de solo e água em períodos de anomalias climáticas: "El Niño" e "La Niña" no sul do Brasil

Revista Brasileira de Ciência do Solo, 2002
O Sul do Brasil tem seu clima influenciado por anomalias climáticas denominadas "El Niño" e "La Niña". Durante o "El Niño", verifica-se precipitação pluvial em volume superior ao normal.
T. J. C. Amado, D. Prochnow, F. L. F. Eltz   +2 more
doaj   +1 more source

Susceptibility of leguminous green manure species to Rhizoctonia solani and Sclerotium rolfsii

, 2011
We studied the susceptibility of species used as green manure in common bean fields to root rot (Rhizoctonia solani) and southern blight (Sclerotium rolfsii).
T. J. P. Júnior, H. Teixeira, R. F. Vieira, M. S. Lehner, R. C. Lima, Telma Fallieri Nascimento Queiroz   +5 more
semanticscholar   +1 more source

Espécies utilizadas como adubo verde são suscetíveis ao Sclerotium rolfsii? [PDF]

, 2022
Sclerotium root rot, caused by the cosmopolitan fungus Sclerotium rolfsii, has a potential for high damage. The use of green manure is an alternative to induce suppressivity. The objective was to evaluate the susceptibility of green manures to S. rolfsii.
Graichen, Felipe André Sganzerla, Moreira, Cristiano, Müller, Ivo Tokeshi   +2 more
core   +1 more source

Physicochemical properties of sodium alginate from brown algae Sargassum aquifolium and Sargassum cinereum

IOP Conference Series: Earth and Environment, 2023
Synthesis and characterization of sodium alginate from Sargassum aquifolium dan Sargassum cinereum have been successfully performed. S. aquifolium and S. cinereum were collected from the Dompu Islands, West Nusa Tenggara, Indonesia.
E. R. Chaldun, D. Andayani, T. Handayani
semanticscholar   +1 more source

Isosarcophytoxide Derivatives with a 2,5-Dihydrofuran Moiety from the Soft Coral Sarcophyton cinereum

Molecules, 2023
The present chemical investigation on the organic extract of the soft coral Sarcophyton cinereum has contributed to the isolation of four new cembranoids: 16β- and 16α-hydroperoxyisosarcophytoxides (1 and 2), 16β- and 16α-methoxyisosarcophytoxides (3 and
Chih-Hua Chao, Yuanyong Wu, Tzu-Yin Huang, Chi-Jen Tai, Yi-Ju Chen, Chiung-Yao Huang, Chi-Chien Lin, C. Dai, Hui-Chi Huang, J. Sheu   +9 more
semanticscholar   +1 more source

Soil organisms associated to the weed suppressant Crotalaria juncea (fabaceae) and its importance as a refuge for natural enemies [PDF]

, 2011
Soil organisms play an important role in organic crops of Crotalaria juncea (Fabaceae) and are associated with the natural conservation of the environment. The present study was aimed to investigate the population of soil organisms in the organic culture
BERRY S. D., BHAN M., BIRKHOFER K., BRAGA D.L., CASSILL D.L., CHELLEMI D.O, ERLANDSON L. A. W., F.S Ramalho, FENOGLIO M. S., FERRO V. G., FIGUEIREDO M. L. C., GILL H.K., GUIMARÃES P.R., I Cruz, IYENGAR V. K., J. C Zanuncio, J.E Serrão, JACKSON D. M., JONES G. D., KOST C., LANGE D., LEWIS G. P., LIMA M. S., M.L.C Figueiredo, MCSORLEY R., MCSORLEY R., MCSORLEY R., MCSORLEY R., OLIVEIRA L. J., OLIVEIRA L. J., QUEIROZ L. R., R.B Silva, ROJAS-ROUSSE D, RUSSEL D. F, SANO Z., SANO Z. I., SANTOS G. G., SHARMA A. R., SILVA M. L. N., SILVA R. F., SOARES S. M., TAVARES W. S., VARON E. H., VENETTE R. C., VENZON M., VILLAR E. M. J., W.S Tavares, WANG K. H., WILKIE K. T. R., WYCKHUYS K. A. G.   +49 more
core   +4 more sources