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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of side dressing nitrogen fertilization and distance between plants on yield of rocket salad

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Author(s):
Luis Felipe Villani Purquerio [1] ; Luis Alfredo Rauer Demant [2] ; Rumy Goto [3] ; Roberto Lyra Villas Boas [4]
Total Authors: 4
Affiliation:
[1] Instituto Agronômico. Centro de Horticultura
[2] UNESP. FCA. Produção Vegetal/Horticultura
[3] UNESP. FCA. Produção Vegetal/Horticultura
[4] UNESP. FCA. Recursos Naturais/Ciência do Solo
Total Affiliations: 4
Document type: Journal article
Source: Horticultura Brasileira; v. 25, n. 3, p. 464-470, 2007-09-00.
Abstract

Experiments were carried out to investigate the effects of nitrogen side dressing fertilization (0; 60.0; 120.0; 180.0 and 240.0 kg ha-1), applied by fertigation and distance between plants (0.05; 0.07 and 0.10 m) for rocket salad in the field and greenhouse. The experimental design was a split-plot with randomized blocks, replicated four times. In the autumn/winter and summer experiments occurred an increase in leaf area, dry mass weight, yield and content of nitrate in leaves extract with an increase of the N doses applied. Plants spaced at 0.10 m presented the highest average leaf area and dry mass weight, but the highest yield was obtained with 0.05 m space, due to the high number of plants/area. In the autumn/winter cropping, the side dressing N application rate that allowed the highest yield in field was 240.0 kg ha-1 and in greenhouse 178.6 kg ha-1. In the summer, in greenhouse, the estimated side dressing nitrogen application rate that allowed the highest yield under plant spaced of 0.05, 0.07 and 0.10 m were 240.0, 167.3 and 231.0 kg ha-1, respectively. (AU)