Data/hora: 07/06/2024 08:35:12

Biblioteca(s): | Embrapa Cocais.
Data corrente: | 10/09/2020
Data da última atualização: | 10/09/2020
Autoria: | SILVA, E. C. da; MURAOKA, T.; BASTOS, A. V. S.; FRANZINI, V. I.; BUZETTI, B.; SOARES, F. A. L.; TEIXEIRA, M. B.; BENDASSOLLI, J. A.
Afiliação: | EDSON CABRAL DA SILVA, IFGOIANO; TAKASHI MURAOKA, USP; ALEFE VIANA SOUZA BASTOS, IFGOIANO; VINICIUS IDE FRANZINI, CPACP; SALATIÉR BUZETTI, FEIS/UNESP; FREDERICO ANTONIO LOUREIRO SOARES, IFGOIANO; MARCONI BATISTA TEIXEIRA, IFGOIANO; JOSÉ ALBERTO BENDASSOLLI, USP.
Título: | Biomass and nutrient accumulation by cover crops and upland rice grown in succession under no-tillage system as affected by nitrogen fertilizer rate.
Ano de publicação: | 2020
Fonte/Imprenta: | Journal of Crop Science and Biotechnology, v.23, n.2, p. 117-126, mar. 2020.
Páginas: | 10 p.
DOI: | 10.1007/s12892-019-0288-0
Idioma: | Português
Conteúdo: | Cover plants are intended to cover the soil, protecting it from erosion, nutrient leaching, and providing nutrients through recycling or biological fixation. The objectives of this study were to evaluate the dry biomass productivity and total accumulation of nutrients in the cover crops shoots and in the upland rice grown in succession; and evaluate the effect of the isolated and combined use of cover crops and urea on upland rice crop, grown under no-tillage system. The field experiment was conducted at Selvíria-MS, Brazil, in an Oxisol (Rhodic Haplustox), cerrado (savannah) phase. The experimental design was randomized blocks, in a 5x3 factorial scheme. The treatments were four cover crops species: sunn hemp (Crotalaria juncea L.), pigeon pea (Cajanus cajan L.), green velvet bean (Mucuna prurens), millet (Pennisetum glaucum L.), and spontaneous vegetation (fallow in off-season) combined with 20 kg N ha-1 applied at sowing, 20 kg N ha-1 applied at sowing + 60 kg N ha-1 at plus topdressing, and without mineral N fertilizer application. The millet recycled large amounts of K, Mg, S, and micronutrients, but negatively influenced the rice grain yield grown in succession. There was no response to topdressed mineral N fertilizer when the crop was grown in rotation to legume cover crops. Upland rice under no-tillage showed a positive response to the N fertilization at seeding and when it is grown in rotation with the use of millet or fallow in the off-season. Upland rice also showed a response to N fertilization applied at topdressing.
Palavras-Chave: | Biomassa seca; Mucuna prurens; Nutrient cycling.
Thesagro: | Arroz; Arroz Sequeiro; Cajanus Cajan; Crotalária Juncea; Oryza Sativa; Pennisetum Glaucum.
Thesaurus Nal: | Biomass; Grasses; Legumes; Mineralization; Urea.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/215885/1/JCropSciBiotech-Article-2020.pdf
Registro original: | Embrapa Cocais (CPACP)
Exemplares: | CPACP - (1759-1) - UPC - AP - DD -  -  -  - DIS