ISHS Acta Horticulturae 1391: IX South-Eastern Europe Symposium on Vegetables and Potatoes
The influence of fertilization and irrigation on the quantitative and qualitative performances of tomatoes grown in greenhouses |
| Authors: | D.I. Sumedrea, A. Florea, M. Negru, M. Oprea, A. Bădulescu |
| Keywords: | deficit irrigation, tomato, organic fertilization, mineral element, fruit quality, yield |
| DOI: | 10.17660/ActaHortic.2024.1391.22 |
| Abstract:
Tomato (Solanum lycopersicum L.) is one of the main cultivated vegetables in the world, and, in Romania, they occupy the first place in terms of share of culture in the greenhouse and solarium, approximately 60%. Sustainable production should be a prime objective, studies on the integrated effect of water and fertigation on tomato cultivation are needed for sustainable agriculture. The paper aimed to compare two experiments with two irrigation regimes (2/3 and 1 complete irrigation, respectively 67 or 100% of evapotranspiration replenishment) and two types of fertilization (chemical and organic). Plant growth indicators, yield and quality of tomato fruits were evaluated by indicators SSC (% Brix), TA %, MA %, CA %, and content of NO3-, K+ and Ca2+ in fruits, in two cultivars of tomatoes with indeterminate growth. The water deficit had a more significant effect on the growth of plants and the yield of tomatoes. Synthesizing the perspectives of yield and fruit quality for all two evaluated cultivars, the deficient irrigation and the effect of organic fertilization gave the best results on the fruit quality indicators where the highest SSC% was recorded, (between 4.5 and 5.8%), the highest content in MA % (between 2.8-3.3 MA%) being able to be used as an alternative to chemical fertilization in a sustainable horticultural way. Regarding the yield, the best results were evident in the case of complete irrigation in any type of fertilization (between 147 and 153 t ha-1). The results regarding the higher concentrations of NO3-, K+, and Ca2+ found in chemically fertilized fruits compared to organic ones, regardless of cultivar and irrigation regime, suggest that inorganic substances are more easily absorbed by plants in a protected environment. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
