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- Title
Cana-de-açúcar fertirrigada com vinhaça e adubos minerais via irrigação por gotejamento subsuperficial: Ciclo da cana-planta.
- Authors
Barbosa, Eduardo A. A.; Arruda, Flavio B.; Pires, Regina C. M.; Silva, Tonny J. A. da; Sakai, Emilio
- Abstract
This study aimed to evaluate the effect of subsurface drip irrigation and the application of stillage and nutrients in some agronomic parameters, stem yield, technological characteristics of sugarcane and yield of theoretical recoverable sugar. The experiment was carried out in completely randomized block design with four treatments and five replications. The treatments were: mineral fertilizers without irrigation; irrigation and fertigation with NPK using mineral fertilizers; irrigation and fertigation with stillage supplying the K and complementation of N and P with mineral fertilizers; and irrigation and fertigation with stillage supplying the NK and complementation of P with mineral fertilizer. The system of irrigation adopted was the subsurface drip irrigation. The irrigated treatments showed higher number of tillers and leaf área index, when compared to rainfed cultivation. The fertigation with stillage supplying the K promoted higher Brix and stem yield when compared to non-irrigated cultivation. The irrigation and fertigation with stillage supplying the NK promoted higher yield of theoretical recoverable sugar, when compared the cultivation without irrigation.
- Subjects
SUGARCANE; FERTILIZERS; MICROIRRIGATION; FERTIGATION; POTASSIUM; SOIL composition; TILLAGE
- Publication
Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi, 2012, Vol 16, Issue 9, p952
- ISSN
1807-1929
- Publication type
Article
- DOI
10.1590/S1415-43662012000900005