International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
DRIP IRRIGATION AND PRODUCTIVITY OF WATER AT GROWING STRAWBERRIES IN AN OPEN AREAS RUMIANA KIREVA1, VESELA PETROVA – BRANICHEVA2, ALEXANDAR MATEV3 1Assos.
Professor, PhD, Dept. Institute of Soil Science, Agritechnologies and Plant Protection “N. Pushkarov”, 7 Shosse Bankya Street,Sofia, Republic of Bulgaria.
2Assistant
Professor, PhD, Dept. Institute of Soil Science, Agritechnologies and Plant Protection “N. Pushkarov”, 7 Shosse Bankya Street, Sofia, Republic of Bulgaria.
3Professor,
PhD, Dept. Agriculture University, Plovdiv, Sofia, Republic of Bulgaria.
---------------------------------------------------------------------***--------------------------------------------------------------------show that a reasonable regulation of soil moisture Abstract: Research of drip irrigation was conducted in during blossoming and ripening may increase the yield order to establish the right irrigation scheduling of from 20% to 50% (Ivanov, [2]) and has a signification strawberry grown in soil and weather conditions of the influence on total yield, berry weight, and leaf area. The Sofia region in the period 2011-2013. The various results of strawberry research obtained in foreign watering modes were tested from full satisfaction of the countries, show the positive effect of irrigation daily water needs of culture to irrigation reduced by (Taparauskiene, Miseckaite, [7]) and saving of 20% and 40% of the irrigation norms. irrigation water may reach from 20 up to 40 % (Cetin, Strawberry irrigation scheduling was established for the et. al. [1], Kireva, Petkov, [3]; Petkov, et. al. [5], Petrova, field around Sofia capital - number irrigations, [6]). There are favourable climate conditions for irrigations depths, irrigation rate and yields. The highest efficient strawberry cultivation across Bulgaria up to yields were obtained at 100% irrigation rate - 1518 1200-1300 m altitude (Ivanov, [2]). kg/dka. The reduced irrigation depths with 20% resulted The purpose of this research is to establish the main in rather small drop in yields by 25%. This irrigation parameters of irrigation regime, the productivity of scheduling can be applied in conditions of water deficit. irrigation water for strawberries cultivated at drip irrigation on open areas. Key words: Irrigation, yield, irrigation scheduling, drip irrigation, strawberry.
2. MATERIALS AND METHODS: The studies to establish the irrigation regime of strawberries “Polka” variety at drip irrigation were performed at practice ground in experiment field at the Institute of Soil Science, Agritechnologies and Plant Protection ”N. Pushkarov” - Chelopechene (42o73‘ 23” N, 23o 47‘ 32” Е and 550 m. altitude) around the Sofia capital during period 2011-2013. The following variants were tested: Pre irrigation moisture - 85% of limit field moisture capacity LFMC 1. 100% realized rate of water application 2. 80% realized rate of water application 3. 60% realized rate of water application The experiment was performed by block method in four replications. The irrigation was performed using drip-irrigating system with following parameters: the distance between the drippers is 0,30m with flowing out water amount of 2,1 l/h allocated in each row. The plants are planted in two-row band with distance between bands - 0,90 m, between rows 0,35 m and
1.INTRODUCTION: Micro-irrigation of strawberry plants is more extensively used in view of possibilities to efficiently control the processes in the irrigation system and in the plant irrigated. This method meets in full the requirements for sustainable agriculture and ecological fruit production, as well as it provides high yields, and reduces the unwanted side effects (Kireva, Petkov, [3]; Petrova, [6]; Moteva et al, [4]). Applying this method of irrigation in strawberry cultivation which is of essential economic importance mainly because of its high productivity and production efficiency, requires to establish in detail the parameters of irrigation regime under the particular conditions in the Republic of Bulgaria. The studies for strawberry irrigation performed up to now show that this culture reacts very well to micro irrigation both with respect to the production volume and with respect to the quality. (Taparauskiene, Miseckaite, [7]). The research in Bulgaria and abroad © 2017, IRJET
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