Data/hora: 25/06/2024 06:15:52

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 16/05/1996
Data da última atualização: | 11/12/2014
Autoria: | DATNOFF, L. E.; RAID, R. N.; SNYDER, A. H.; JONES O. B.
Título: | Effect of calcium silicate on blasdt and brow spot intensities and yields of rice.
Ano de publicação: | 1991
Fonte/Imprenta: | Plant Disease, v. 75, n. 7, p. 729-732, Jul. 1991.
Idioma: | Inglês
Conteúdo: | Rice production in the subtropical climate of Florida is on Histosols,which are high in organic matter content and low in plant-available silicon (Si). Broadcast rates of calcium silicate slag were 0, 5, 10, and 15 Mg/ha. In 1987, applications of calcium silicate slag reduced blast by 30.5% and brown spot by 15.0% over the control. In 1988, blast and brown spot were reduced by 17.4 and 32.4% respectively, over the control. Linear and quadratic equations significantly (P<0.05) describedthe slag-disease and slag-yield relationships. In rice straw samples, only Si, not Ca, significantly increased (P<0.05) with increasing slag rates over the control. It appears that reduction in disease intensives can be accounted for only by Si in this study.
Palavras-Chave: | Bruzone; Silicito de calcio.
Thesagro: | Arroz; Controle Cultural.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (2310-1) - ADC - SP - PP - S 10581 -  - 0010581 - DIS