Data/hora: 17/06/2024 03:47:08

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 25/09/2019
Data da última atualização: | 07/12/2019
Autoria: | GADELHA, J. C.; XAVIER, F. A. da S.; ESCOBAR, M. E. O.; GILKES, R. J.; OLIVEIRA, T. S. de.
Afiliação: | JANINE COLARES GADELHA, UFCE; FRANCISCO ALISSON DA SILVA XAVIER, CNPMF; MARIA EUGÊNIA ORTIZ ESCOBAR, UFCE; ROBERT JOHN GILKES, University of Western Australia; TEÓGENES SENNA DE OLIVEIRA, UFV.
Título: | Compost and nutrient dynamics under irrigation and shadowing for horticulture in Northeast Brazil.
Ano de publicação: | 2019
Fonte/Imprenta: | Journal of Horticulture, v. 6, n. 1 p. 253, 2019.
ISSN: | 10.24105/2376-0354.1000253
Idioma: | Inglês
Conteúdo: | Purpose: Determine the decomposition of compost under two levels of shading (total and none) and central pivot and sprinkler irrigation. Methods: Litter boxes were made with a 4mm mesh base, and PVC sides and filled with compost. Boxes were recovered after 0, 2, 4, 6, 8, 10 and 12 months. Amounts of remaining compost and nutrients were measured and decomposition rates and half-life values were calculated. Soil under the litter boxes was analyzed before and after removing boxes, for nutrient contents (N, P, K, Ca, and Mg) and organic carbon. Results: Compost was lost quickly over time. Losses were faster under central pivot than sprinkler irrigation. Total shade caused higher rates of decomposition than without shade. Half-life values varied from 0.12 to 1.02 years. Losses of nutrients were substantial, with P and K being lost at faster rates than mass loss. Conclusions: Nutrients were lost rapidly from compost and were mostly not present in the soil. Insects may have removed compost from the boxes. Total shadowing increases decomposition rates of compost.
Thesagro: | Horticultura; Irrigação.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/202284/1/compost-and-nutrient-dynamics-under-irrigation-and-shadowing-for-horticulture-in-northeast-brazil.pdf
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (32736-1) - UPC - AP - DD - Publicação digital -  -  - DIS