Nitrogênio no feijoeiro em sistema de plantio direto sobre gramíneas
Loading...
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Type
Article
Access right
Abstract
An adequate supply of nitrogen is essential for high yield of common bean seeds; however, the responses to this nutrient in no-tillage systems can vary in function of the species and the amount of straw present. The aim of this research was to evaluate response of the common bean to N in no-tillage systems over maize, millet and Brachiaria brizantha crop residues. Three experiments were conducted, one for each gramineous species. The experimental design was a randomized block in a 5×2×2 factorial scheme, with five N doses (0, 30, 60, 90, 120 kg ha-1), in two distinct stadia during the vegetative development (3rd and 6th trifoliate leaf) and two common bean cultivars (IPR Juriti and Pérola), with four replications. The IPR Juriti produced a greater number of pods per plant and showed lower mass per 100 seeds than Pérola. It did not show variation in bean yield when the sidedressing N application was carried out in the 3rd or 6th trifoliate leaf stadia. Based on the obtained results, one concludes that the seed productivity of common beans increases linearly with N doses in a no-tillage system over maize residues.
Description
Keywords
Mulching, Nitrogen fertilizer, Phaseolus vulgaris L., Phenology, Seed yield
Language
Portuguese
Citation
Acta Scientiarum - Agronomy, v. 30, n. 3, p. 387-395, 2008.
Related itens
Sponsors
Other forms of access
