Evapotranspiration - plant growth‐relationship for greenhouse tomato cultivated under drip fertigation
Keywords:
tomato, drip irrigation, fertigation, evapotranspiration, biometric indicators, greenhouseAbstract
Тhe present study aimed at deriving relationship between the evapotranspiration of greenhouse tomato and the growth parameters in the period of vegetative development. An experiment was conducted with tomato variety Big Beef F1, planted in Haplic Chromic Luvisol in a tunnel-type greenhouse, grown under drip irrigation with mulching and fertigation in 2019. Tomatoes were grown under conditions of full (100% ETc) and deficit irrigation (60% ETc) at varios fertilization rates (0, 80% NPK, 100% NPK, 120% NPK). Daily evapotranspiration of tomato was estimated by the FAO-Penman-Montit method with single crop coefficient. The growth and development of tomato plants was monitored. In the key phase – 6-8th inflorescence, experimental data were obtained for some biometric parameters: plant height, number of leaves, number of inflorescences, number of fruits per plant. Regression analysis was used to obtain empirical relationships between evapotranspiration and tomato growth parameters. The results of the regression analysis showed that there was a linear relationship between evapotranspiration and height, number of leaves and number of inflorescences of tomato plants. The relationship between evapotranspiration and the number of fruits per plant was quadratic. The regression equations derived were statistically significant at 5% significance level.
References
Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop evapotranspiration-Guidelines for computing crop water requirements-FAO Irrigation and drainage paper 56. Fao, Rome, 300(9), D05109.
Doorenbos, A. J., & Pruitt, W.O. (1977). Guidelines for Predicting Crop Water Requirements. Irrigation and Drainage Paper 24. FAO, Rome.
Gong, X., Wang, S., Xu, C., Zhang, H., & Ge, J. (2020). Evaluation of several reference evapotranspiration models and determination of crop water requirement for tomato in a solar greenhouse. HortScience, 55(2), 244-250.
Kırda, C., Baytorun, N. & Çetin, M. (1998). Evapotranspiration Measurement of Greenhouse Grown Tomato, Melon and Cucumber. M. Şefik Yeşilsoy International Symposium on Arid Region Soils (YISARS), International Agrohydrology Research and Training Center , 21-24 September, Menemen, İzmir, Turkey, p 73-78.
Oliveira, E. C., Carvalho, J. D. A., Silva, W. G. D., Rezende, F. C., & Almeida, W. F. D. (2011). Effects of water deficit in two phenological stages on production of japanese cucumber cultived in greenhouse. Engenharia Agrícola, 31(4), 676-686.
Ortega-Farías, S., Acevedo, C., & Fuentes, S. (1998). Estimation of Tomato Evapotranspiration by the Penman-Monteith Method. In 23rd Conference on Agricultural and Forest Meteorology, p 136-138.
Patamanska, G., Mitova, I., Miteva, D., & Gigova, A. (2020). Yield and fruit quality of greenhouse tomato in response to different level of irrigation and fertilization. Journal of Mountain Agriculture on the Balkans, 23(1), 197-208.
Qiu, R. J., Liu, C.W., Cui, N.B., Wu, Y. J., Wang, Z.C., & Li, G. (2019). Evapotranspiration estimation using a modified Priestley-Taylor model in a rice-wheat rotation system. Agr. Water Mgt. 224, 105755.
Valdés, H., Ortega-Farias, S., Argote, M., Leyton, B., Olioso, A., & Paillán, H. (2003, September). Estimation of evapotranspiration over a greenhouse tomato crop using the Penman-Monteith equation. In IV International Symposium on Irrigation of Horticultural Crops 664, p 477-482.
Yuan, B. Z., Kang, Y., & Nishiyama, S. (2001). Drip irrigation scheduling for tomatoes in unheated greenhouses. Irrigation Science, 20(3), 149-154.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Bulgarian Journal of Soil Science, Agrochemistry and Ecology
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
