Author(s): Guarachi Edwin; Sainz Humberto; Serrano Genaro
Linked Author(s):
Keywords: Component Mixed drained; Suka Kollus; Water management
Abstract: The Suka Kollus was hydraulic structures constitute the most important ancient technology; it is presumed that one of its functions was to drain the formation of raised field (camellones) that interspersed with water canals, whose remains are found around Lake Titicaca. Under present conditions, the farmer's traditional areas Suka Kollus, are eliminating water canals in order to gain more land area, they were excluding water and weather effects that would be caused. In front this problem, this research was conducted to study the water behavior in mixed drained conditions (open canals and PVC tubes) for the potato crop, it have done at the Experimental Station's Kallutaca it located 16°31'10''south latitude and 68°19'03''west longitude. It was posed by four treatments: T 1 (control) Suka Kollu with open canals under traditional conditions, T 2 with a tube in Suka Kollus, T 3 and T 4 with two tubes, three tubes and so on in this Suka Kollus. The implemented system has provided a total of 12 372 m 3 (influx volume) during the cropping season, however the losses associated with direct evaporation, crop evapotranspiration and output accounted in 10 974 m 3. Even so the volume of water in the canals remained about 303 m3 in that on the ground (raised field) was it was stored an average volume of 98. 2 m 3. The highest yield was expressed in the T 3 (11. 4 ton·ha -1). The economic analysis shows a Benefic/Cost ratio of 1. 2 for T 3 with a marginal rate of return it had 204% . At the end the T 3, is presented as the best alternative for the local farmer, under the study conditions.
Year: 2014