Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Roberto Antunes Fioretto"'
Autor:
Roberto Antunes Fioretto, Cristine Elizabeth Alvarenga Carneiro, Marcos Antonio Pavan, Conrado Cagliari Fioretto, Leonardo Theodoro Büll
Publikováno v:
Ciência e Agrotecnologia, Vol 33, Iss spe, Pp 2069-2074 (2009)
Two laboratory experiments were carried out to evaluate the effects of sugar cane straw on soil acidity. Sugar cane straw residues were added on the surface of a Typic Harplortox in a polyvinyl chlorid (PVC) column at rates of 0, 20, 40, and 76 g kg-
Externí odkaz:
https://doaj.org/article/26f72f350d6548cb900eb75144327ad3
Autor:
Geraldo Estevam de Souza Carneiro, Inês Cristina Batista Fonseca, Roberto Antunes Fioretto, Cristine Elizabeth Alvarenga Carneiro
Publikováno v:
Acta Scientiarum: Agronomy, Vol 28, Iss 4, Pp 465-470 (2006)
Visando melhorar a disponibilidade do fósforo no solo foi realizado um estudo de sorção de fósforo, utilizando CALPOT (calcário + potássio) e silício como promotores. Em laboratório, aplicou-se ao solo os elementos P e Si em doses crescentes
Externí odkaz:
https://doaj.org/article/a6af379e7f7d4ef4be5b8549e96e2723
Autor:
Geraldo Estevam de Souza Carneiro, Inês Cristina Batista Fonseca, Roberto Antunes Fioretto, Cristine Elizabeth Alvarenga Carneiro
Publikováno v:
Semina: Ciências Agrárias, Vol 27, Iss 1, Pp 5-12 (2006)
Seeking to supply Ca, Mg, K and to improve the P availability to soybean, CALPOT and metallurgy scum were applied. The treatments were: 1) Control; 2) CALPOT + P + Si; 3) CALPOT + P; 4) CALPOT + Si; 5) Si + P; 6) Lime; 7) CALPOT. The basic cátions C
Externí odkaz:
https://doaj.org/article/cdc00435c20747f483c9f033dcec31da
Autor:
Cristine E. Alvarenga Carneiro, Inês Cristina Batista Fonseca, Roberto Antunes Fioretto, Lucimara Aparecida Martins
Publikováno v:
Semina: Ciências Agrárias, Vol 26, Iss 4, Pp 455-462 (2005)
Nutricional deficiency in wheat crop causes serious damages to the productivity and the quality. Often the fertilization is focused in the macronutrients, not accounting the necessity of the micronutrients in the development of the plant. In order to
Externí odkaz:
https://doaj.org/article/76b349e197bb42c28d4cf12679bf68e1
Autor:
Mauro Cucolotto, Arlindo Harada, Jose Eduardo Creste, Débora Cristina Santiago, Adilson Luiz Seifert, Inês Batista da Fonseca, Roberto Antunes Fioretto, Ronaldo Tsuyoshi Watanabe
Publikováno v:
Semina: Ciências Agrárias, Vol 26, Iss 4, Pp 477-484 (2005)
A field experiment in Cambé-PR was carried out with 20 treatments arranged in split plot with 4 replications in a randomized complete block design, using the soybean cultivar BRS 133. The treatments were CALPOT (0.0 and 2.35 t.ha-1) in the main plot
Externí odkaz:
https://doaj.org/article/96529fbe299c482e9c92304427282a66
Autor:
Alexandre José da Silva Castro, Carmen Silvia Vieira Janeiro Neves, Inês Cristina de Batista Fonseca, Roberto Antunes Fioretto, Cristine Elizabeth Alvarenga Carneiro
Publikováno v:
Semina: Ciências Agrárias, Vol 25, Iss 4, Pp 265-272 (2004)
In soils with high acidity and low CEC, the combined application of limestone and organic matter can improve soil chemical characteristics. This reserch work had the aim of observing soil chemical changes with sugar-cane straw, limestone and vinasse
Externí odkaz:
https://doaj.org/article/df8ff72eeb154086a75ed00b7aaea6fc
Publikováno v:
Semina: Ciências Agrárias, Vol 25, Iss 2, Pp 93-100 (2004)
The objective of the present paper was to evaluate, under field conditions, the results obtained in laboratory, with the application of vinasse and limestone on sugar cane straw, in order to induce chemical changing in the soil, without mobilization
Externí odkaz:
https://doaj.org/article/849ec868cbb3440a97499837eab24e19
Calcário, Potássio, Fosfato e Silício na produtividade do solo - DOI: 10.4025/actasciagron.v28i4.759
Autor:
Cristine Elizabeth Alvarenga Carneiro, Roberto Antunes Fioretto, Inês Cristina Batista Fonseca, Geraldo Estevam de Souza Carneiro
Publikováno v:
Acta Scientiarum: Agronomy, Vol 28, Iss 4 (2008)
Visando melhorar a disponibilidade do fósforo no solo foi realizado um estudo de sorção de fósforo, utilizando CALPOT (calcário + potássio) e silício como promotores. Em laboratório, aplicou-se ao solo os elementos P e Si em doses crescentes
Externí odkaz:
https://doaj.org/article/9dd80daf4c3a4ef1a1088268ebf49a61
Autor:
Roberto Antunes Fioretto
Publikováno v:
Semina: Ciências Agrárias, Vol 8, Iss 1 (1987)
Procurou-se neste experimento verificar a influência de doses crescentes de manipueira (50, 100 e 200 m3/ha) sobre a cultura do algodão e milho, com a aplicação em diferentes épocas, visando avaliar a prática da fertirrigação em culturas anua
Externí odkaz:
https://doaj.org/article/b403f04317584b9f8298daa868a49589
Autor:
Marcelo Giovanetti Canteri, Hideaki Wilson Takahashi, Guilherme Garcia Gaspar, Lucas Henrique Fantin, José Carlos Vieira de Almeida, Roberto Antunes Fioretto, Braitner Luiz Giorgines Andrade
Publikováno v:
Agronomy Science and Biotechnology. 1:39
This work aimed to analyze the effect of the variation of the proportions of calcium in relation to the contentes of magnesium and potassium in the cationic capacity of change (CCC) of the soil, seeking to propitiate the appropriate balance of bases,