CONSERVING OF THE RESOURCES
Irrigation regime of green bean cultivated as an intercropping culture in unheated greenhouses with drip irrigation
- 1 Institute of Soil Science, Agro-Technology and Plant Protection “Nikola Pushkarov", Sofia, Bulgaria
Abstract
The production of green beans in plastic unheated greenhouses is relevant when grown as a intercropping culture. Rrotation of crops is an important biological factor for increasing soil fertility, and year round production of vegetables in plastic greenhouses to maximize the economic impact of these expensive facilities.
Considering the biology of the crop and especially its requirements for soil moisture, determinating for obtaining high yields and quality production is the implementation of a proper irrigation regime, as well as the use of suitable irrigation technique.
The aim of the research is to identify the main elements of the irrigation regime of green beans, cultivated as a second intercropping culture, in drip irrigation / watering and irrigation rates, interwatering periods and number of irrigations /.
Irrigation was carried out with a drip irrigation system type Drossbach. Variations have been tested at 85-90% of pre-watering humidity and 120% of irrigation rates- 120%; 100%; 80% and 60%.
It has been found that the productivity of irrigation water in drip irrigation of vegetable crops grown in unheated greenhouses is increased by reducing the irrigation rate. The highest productivity of irrigation water is achieved with the 60% irrigation rate option.
Keywords
References
- Murtazov T., P. Kartalov and G. Tsekleev. Growing early tomatoes in polythene solar greenhouses. "Agricultural Thought", vol. 5 - 6, 1974
- Kireva, R., Zh. Zhivkov. 2003 Productivity of irrigation water for basic vegetable cultures grown by drip irrigation. Collection of scientific papers - 50 years Forestry Intite 1-2 April 2003 Sofia. pp. 150-151
- Nikolova M., P. Petrova, B. Petrova, A. Matev - Influence of the Periodic Water Deficiency on the Productivity of Garden Beans - Late field Production, Collection of Reports from the Jubilee Scientific Conference with International Participation, pp. 258-265, 2017.
- Petkov, Pl., R. Petrova, N. Markov, N. Gadjalska, R. Kireva, S. Chehlarova, K. Karaivanov, 2007, Good Practices for Irrigation of Agricultural Cultures, Handbook, Avangard Prima, Sofia, pp. 33-34
- Sofkova Sv. Characteristics of Prospective Bean Selection Lines (PHASEOLUS VULGARIS L.), International Scientific Conference "Field Cultivation Research" 2014, Volume IX - 1, p. 99-108
- Tsekleev G., V. Vassilev - Highly efficient developments. Gardening magazine , No. 9, 1983
- Freeman, B., Garzoli, M.R. – Localized Irrigation FAO, Irrigation and Drainage Paper, N 36, 1980.
- Manjeru P., T. Madanzi, B. Makeredza, A. Nciizah, M. Sithole; 2007; Effects of water stress at different growth stages on components and grain yield of common bean (Phaseolus vulgaris L.). 8Th African Crop Science Society Conference, El-Minia, Egypt; 299–303;
- Miorini T., J. Saad, M. Menegale; 2011; Water supression in different phenological stages of bean (Phaseolus vulgaris L.). [Supressao de agua em diferentes fasesfenologicas do feijoeiro (Phaseolus vulgaris L.)] Irriga; 16, (4): 360 –368;
- Oliveira R., J. Lima, E. Reis, J. Pezzopane, A. Silva; 2008; Levels of water deficit at different growth phases of bean (Phaseolus vulgaris L.) cv. Capixaba precoce; Engenharia Na Agricultura; 16, (3), 343 –350;
- Ucar Y., H.I. Yilmaz, N. Yardimci, A. Kadayifci, G.I. Tuylu; 2009; The effect of deficit irrigation on the grain yield of dry bean (Phaseolus vulgaris L.) in semiarid regions; Spanish Journal of Agricultural Research v.7(2) p. 474–485;