CONSERVING OF THE RESOURCES
Productivity of irrigation water and irrigation effect of raspberries grown under optimum irrigation conditions and water deficit
This paper deals with the productivity of irrigation water and the effect of irrigation on raspberries in the Chelopechene experimental field. We examined different regimes, keeping from full satisfaction of daily water needs of crop to irrigation with reduced by 20 and 40% irrigation norms and variant without irrigation
Moisture optimization in the active soil layer contributes to a significant increase and stabilization of yields, which for the test conditions range from 835 to 1074 kg / dka, with additional yields ranging from 404 to 627, kg / dka or from 47 to 59% on average for the study period. Established productivity irrigation rate is highest in the variants irrigated with a 40% reduction in the optimum norm and varies in units from 13.0 kg. ha -1.mm-1 to 24.0 kg.ha – 1.mm-1, and it is low in the irrigation variants with 100% irrigation rate, with the highest values reaching in the dry year 2000.