10 documents found, page 1 of 1
The long-term effects of intensive grazing and silvopastoral systems on soil ph...
Martin-Neto, Ladislau
Long-term lime and phosphogypsum broadcast affects phosphorus cycling in a trop...
Firmano, Ruan Francisco; Colzato, Marina; Bossolani, João William [UNESP]; Colnago, Luiz Alberto; Martin-Neto, LadislauMade available in DSpace on 2021-06-25T10:31:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Broadcast application of lime or phosphogypsum to suppress aluminum (Al) in soils can influence chemistry and fate of phosphorus (P) in natural environments. However, the long-term effects of these amendments in organic P (Po) forms and in soil biochemical properties remain unclear. This study assessed ...
The influence of seasonalness on the structural characteristics of aquatic humi...
Oliveira, L. C.; Sargentini, Ézio; Rosa, André Henrique; Rocha, Júlio César; Simões, Marcelo Luiz; Martin-Neto, Ladislau; Silva, Wilson Tadeu Lopes daIn this work, humic substances were extracted from water samples collected monthly from the Negro River basin in the Amazon state (Brazil) to study their properties in the Amazonian environment and interactions with the mercury ion considering the influence of seasonalness in this formation. The C/H, C/N and C/O atomic ratio parameters, functional groups, concentration of semiquinone-type free radicals, pH, plu...
Soybean macronutrient availability and yield as affected by tillage system
Moreira, Silvino Guimarães; Kiehl, Jorge de Castro; Prochnow, Luís Ignácio; Pauletti, Volnei; Martin-Neto, Ladislau; Resende, Alvaro Vilela deThe effect of tillage system (NT-no tillage; CT-conventional tillage; MT-minimum tillage; and NT/scarification, every three years) on soybean nutrient availability and yield was evaluated on Oxisol after 12 years of cultivation. Soil samples were collected at depths of 0.00-0.05, 0.05-0.10, and 0.10-0.20 m and were analyzed for P, K, Ca, Mg, carbon (C), organic matter (OM), pH value, potential CEC, base saturat...
Propriedades redox e grupos funcionais de ácidos húmicos isolados de adubos org...
Baldotto, Marihus Altoé; Canellas, Luciano Pasqualoto; Canela, Maria Cristina; Simões, Marcelo Luiz; Martin-Neto, LadislauDependendo das condições do sistema, os ácidos húmicos podem atuar como oxidantes ou redutores. Nos sistemas naturais, o fluxo de elétrons está diretamente associado à quantidade e à qualidade do húmus. O potencial do eletrodo e a capacidade de oxidação informam sobre os fatores intensidade e capacidade dos sistemas redox, respectivamente. Estudos prévios têm aventado a hipótese de que radicais livres nos ácido...
Chemical forms in soil and availability of manganese and zinc to soybean in soi...
Martin-Neto, Ladislau
The influence of seasonalness on the structural characteristics of aquatic humi...
De Oliveira, Luciana C. [UNESP]; Sargentini Jr., Ézio; Rosa, André H. [UNESP]; Rocha, Julio C. [UNESP]; Simões, Marcelo L.; Martin-Neto, LadislauSubmitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:22:35Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:29:52Z : No. of bitstreams: 1 2-s2.0-34548311554.pdf: 316523 bytes, checksum: 77c88939dab3ade393ce714c1452b493 (MD5); Made available in DSpace on 2014-05-27T11:22:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-09-06; In this work, humic substances were...
Estudo comparativo de métodos para a determinação da concentração de carbono em...
Segnini, Aline; Santos, Larissa Macedo dos; Silva, Wilson Tadeu Lopes da; Martin-Neto, Ladislau; Borato, Carlos Eduardo; Melo, Wanderley José de [UNESP]Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:41Z No. of bitstreams: 1 S0100-40422008000100020.pdf: 153593 bytes, checksum: 80e1793df1066ce770f7c9fe8c9271b7 (MD5); Made available in DSpace on 2013-08-22T18:48:41Z (GMT). No. of bitstreams: 1 S0100-40422008000100020.pdf: 153593 bytes, checksum: 80e1793df1066ce770f7c9fe8c9271b7 (MD5) Previous issue date: 2008-01-01; Made availabl...
Interactions of chlorine with tropical aquatic fulvic acids and formation of in...
Carvalho, Eduarda R.; Martin-Neto, Ladislau; Milori, Débora M. B. P.; Rocha, Julio C. [UNESP]; Rosa, André H. [UNESP]Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:08Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:29:02Z : No. of bitstreams: 1 2-s2.0-4143104727.pdf: 392189 bytes, checksum: c81d8a4f6800080b913f7ea0bd82bada (MD5); Made available in DSpace on 2014-05-27T11:21:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-08-30; The interactions of tropical aquatic...
Studies on the interaction between humic substances and conducting polymers for...
Venancio, Everaldo C.; Consolin Filho, Nelson; Constantino, Carlos J. L. [UNESP]; Martin-Neto, Ladislau; Mattoso, Luiz H. C.Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:15Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:28:18Z : No. of bitstreams: 1 2-s2.0-17444372410.pdf: 802322 bytes, checksum: 9c3cf02de33c50c309314ecec09a9774 (MD5); Made available in DSpace on 2014-05-27T11:21:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-01-01; The interaction between humic subst...