CALCIUM CARBONATE APPLIED TO THE SUBSTRATE AND FOLIAR SPRAY IN TOMATO AND BELL PEPPER

• DOI: 10.37572/EdArt_31072559810

• Palavras-chave: 'Closter' tomato; 'Canon' bell pepper; color L*a*b*, fruit size; response Surface.

• Keywords: 'Closter' tomato; 'Canon' bell pepper; color L*a*b*, fruit size; response Surface.

• Abstract:

  The objective was to determine if the applications of calcium carbonate to the substrate and foliar spray influence the color and the quality of the tomato and bell pepper grown under greenhouse. The work was carried out in a 300 m2 greenhouse, 'Closter' tomato and 'Canon' bell pepper plants were used, in both species a factorial experiment 52 bounded to 13 treatments to evaluate linear, quadratic response surface and factor interaction. In both crops, the application concentrations of calcium carbonate to the substrate ranged from 0 to 12800 kg ha-1, while foliar spray ranged from 0 to 15.36 kg ha-1, the variables evaluated were color L* a* b*, polar diameter and equatorial diameter. In tomato fruit affected more red they were treated with 6269.7 kg ha-1 CaCO3 to the sustrate without foliar spray,to have more elongated fruits and wider is necessary to increase the amount of calcium carbonate in foliar sprays; in bell pepper, the most polar diameter was obtained 10,635.0 kilograms per hectare with foliar spray of 1.9 kilograms per hectare, the brightest fruits were achieved with an application of calcium carbonate to the sustrate of 226.5 kilograms per hectare and foliar spray 14.3 kilograms per hectare