Iranian Journal of Irrigation & Drainage

Iranian Journal of Irrigation & Drainage

Comparison of Surface and Subsurface Drip Irrigation Systems and Their Effects on the Yield and Quality of Sorkh Fakhri (Shahroudi) Grapevines

Document Type : Original Article

Authors
1 Agricultural Engineering Research Department, Agricultural and Natural Resources Research and Education Center of Semnan Province (Shahrood), AREEO, Shahrood, Iran.
2 Agricultural Engineering Research Department, Agricultural and Natural Resources Research Center Semnan province (Shahrood)
3 Field and Horticultural Crops Research Department, Agricultural and Natural Resources Research and Education Center of Semnan Province (Shahrood)
Abstract
In order to investigate and compare two methods of surface and subsurface drip irrigation and find out the possible problems and obstacles of these methods in grape orchards, a research was carried out from 2019 for two years in the orchards of the Center for Research and Education of Agriculture and Natural Resources of Semnan province (Shahroud). In this research, the effects of two methods of surface (DI) and subsurface (SDI) drip irrigation and different amounts of irrigation water on the quantitative and qualitative characteristics of the crop, the growth characteristics of grapes and the growth of weeds were investigated. This research was done with two factors and three repetitions. The factors included Drip irrigation method in two levels (surface drip irrigation and subsurface drip irrigation) and irrigation water amounts (in three levels 50, 75, and 100% of water required by the plant). Irrigation water was calculated by the Penman-Mantith method and based on the mentioned water levels, it was given to the plants with irrigation period 3 day. In this research, the effect of experimental factors on crop yield, fruit quality characteristics such as pH, brix, acidity and bunch weight, length and diameter of pods The results of composite data analysis showed that the effect of both experimental factors, irrigation method and amount of irrigation water, as well as their mutual effects on crop yield (at the 5% level) is significant. The effect of irrigation method on the quality parameters of the product including Brix (BRX), acidity, pH, cluster weight, weight of 30 kernels per cluster, kernel length and diameter was not significant. But the effect of the amount of irrigation water on fruit Brix (1% level) was significant. Also, the interaction effect of irrigation method and amount of water on fruit acidity and pH was also significant.
Keywords


Articles in Press, Accepted Manuscript
Available Online from 30 June 2026