Data/hora: 04/06/2024 16:18:57

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 27/10/2015
Data da última atualização: | 03/03/2017
Autoria: | CRUSCIOL, C. A. C.; ARTIGIANI, A. C. C. A.; ARF, O.; CARMEIS FILHO, A. C. A.; SORATTO, R. P.; NASCENTE, A. S.; ALVAREZ, RITA C. F.
Afiliação: | CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; ANGELA C. C. A. ARTIGIANI, UNESP, Botucatu-SP; ORIVALDO ARF, UNESP, Ilha Solteira-SP; ANTONIO C. A. CARMEIS FILHO, UNESP, Botucatu-SP; ROGERIO P. SORATTO, UNESP, Botucatu-SP; ADRIANO STEPHAN NASCENTE, CNPAF; RITA C. F. ALVAREZ, UNESP, Botucatu-SP.
Título: | Soil fertility, plant nutrition, and grain yield of upland rice affected by surface application of lime, silicate, and phosphogypsum in a tropical no-till system.
Ano de publicação: | 2016
Fonte/Imprenta: | Catena, v. 137, p. 87-99, 2016.
ISSN: | 0341-8162
DOI: | 10.1016/j.catena.2015.09.009
Idioma: | Inglês
Conteúdo: | The development of technologies that provide rapid acidity amelioration of the soil profile through the surface application of amendments and phosphogypsum, such as no-till (NT) systems, is extremely important to provide adequate chemical conditions in tropical soilswith lownatural fertility,which limits the grain yield of upland rice (Oryza sativa L.). Thus, this study aimed to evaluate the effects of surface applications of lime, silicate, and phosphogypsum, applied individually or in mixtures, on the chemical properties of the soil profile in an NT systemand to determine their effects on the nutrition, yield components, and grain yield of upland rice. The experiment was designed as a completely randomized block with eight treatments replicated four times. The combination of phosphogypsum with lime and/or silicate improved the surface and subsurface soil chemical properties 12 months following application. The mixtures increased the concentrations of K, Ca, Mg, N?NO3 &#8722;, and S?SO4 2&#8722; in the subsurface layers. The sulphur concentration in the flag leaves of upland rice was higher with phosphogypsum application. The number of panicles per m2 and grain yield of upland rice were positively influenced by the surface application of soil acidity amendments and phosphogypsum mixtures.
Thesagro: | Arroz; Fertilidade do solo; Manejo do solo; Oryza sativa; Plantio direto.
Thesaurus Nal: | Cations; No-tillage; Plant nutrition; Rice; Soil amendments.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (33704-1) - UPC - AP - DD - 2016 -  - 2015. - DIS