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| Catuchi,Tiago Aranda; Soratto,Rogério Peres; Francisquini Júnior,Amarildo; Guidorizzi,Fernando Vieira Costa; Tiritan,Carlos Sérgio. |
| Abstract: The objective of this work was to evaluate the nutrition, accumulation of nutrients in residual straw, pure seed yield, and seed quality of the tropical forage grasses 'Mombaça' and 'Xaraés' subjected to topdressing with nitrogen fertilizer management. Field experiments were carried out in the municipalities of Rancharia and Presidente Prudente, in the state of São Paulo, Brazil. The treatments included a control (without N topdressing) and four N fractionation forms at different forage stages: 150 kg ha-1 N, at the vegetative phase (VP); 150 kg ha-1 N, at the beginning of the reproductive phase (RP), between panicle initiation and the prebooting stages; 100 kg ha-1 N, at VP plus 50 kg ha-1 N at RP; and 50 kg ha-1 N at VP plus 100 kg ha-1 N at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Megathyrsus maximus; Urochloa brizantha; Nitrogen fertilization; Nutrient accumulation; Time of application. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102501 |
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| Catuchi,Tiago Aranda; Guidorizzi,Fernando Vieira Costa; Guidorizi,Kezia Aparecida; Barbosa,Alexandrius de Moraes; Souza,Gustavo Maia. |
| O objetivo deste trabalho foi avaliar a interferência da adubação potássica em parâmetros fisiológicos de duas cultivares de soja, sob diferentes regimes hídricos. O experimento foi realizado em condições de casa de vegetação, em Presidente Prudente, SP. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 2x2x3, com as cultivares BR‑16 (tolerante ao estresse hídrico) e Embrapa 48 (suscetível), regimes hídricos com reposição diária de água de 100% (controle) e de 40% da capacidade de campo, e três níveis de suplementação com K (0, 90 e 180 mg dm‑3). Duas semanas após a imposição da restrição hídrica, foram avaliados: conteúdo relativo de água, potencial fotossintético e rendimento de biomassa. As plantas que se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Biomassa; Deficit hídrico; Fotossíntese; Nutrição. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000400007 |
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| Kotz-Gurgacz,Tailene Elisa; Soratto,Rogério Peres; Guidorizzi,Fernando Vieira Costa. |
| Abstract: The objective of this work was to evaluate the effect of applying N sources to leaves and N rates to the soil on the growth, N uptake, and grain and crude protein yields of the common bean (Phaseolus vulgaris) crop. Three experiments - two irrigated and one rainfed - were conducted during the 2012/2013 agricultural season, in a randomized complete block design with four replicates. The treatments consisted of the application of: four N rates (0, 45, 90, and 180 kg ha-1) to the soil, as topdressing in the V4 stage; and five N sources/rates - i.e., control, without foliar N application; 2.5 kg ha-1 N as conventional urea (N-CU); 5.0 kg ha-1 N-CU; 2.5 kg ha-1 N as slow-release urea-formaldehyde (N-SR); and 5.0 kg ha-1 N-SR - to leaves, in the R5... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Foliar fertilization; Nitrogen fertilization; Slow release; Urea-formaldehyde. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201329 |
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