Effects of nutrition and irrigation on sweet pepper production in volcanic tuff

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In this study aimed at increasing sustainability in soilless cultivation, volcanic tuff was used as substrate and the tested plant material was blocky type pepper (cv. 4-Ever F1). Three experimental factors were evaluated: cultivation system (open or closed), nutrient composition (N1, N2, N3, N4) and irrigation frequency (I1, I2, I3, I4). Macro nutrient concentrations of N2, N3 and N4 were 2-, 3- and 4-fold of N1. Concentrations of micronutrients were the same for all treatments. Irrigation was started when indoor solar radiation reached 6, 4, 2 and 1 MJ m–2 in the treatments I1, I2, I3 and I4, respectively. As a sustainable soilless technique, closed system was found to be recommendable by incorporating the treatment N4 + I2 to provide high yield and quality for blocky type pepper production. In the case of an open system, N2 + I4 proved to be the most efficient strategy.

Autores: 
A. Gul
Autores: 
Y. Tuzel
Autores: 
I. H. Tuzel
Autores: 
M. E. Irget
Autores: 
F. Kidoglu
Autores: 
M. Tepecik
Editora: 
Spanish Journal of Agricultural Research
Año: 
2011