Citas bibligráficas
Celis, A., (2018). Sistemas de riego y niveles de nitrógeno en el rendimiento de quinua (Chenopodium quinoa Willd) var. La Molina 89 [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/3664
Celis, A., Sistemas de riego y niveles de nitrógeno en el rendimiento de quinua (Chenopodium quinoa Willd) var. La Molina 89 []. PE: Universidad Nacional Agraria La Molina; 2018. https://hdl.handle.net/20.500.12996/3664
@misc{sunedu/3012877,
title = "Sistemas de riego y niveles de nitrógeno en el rendimiento de quinua (Chenopodium quinoa Willd) var. La Molina 89",
author = "Celis Martínez, Alcides Rubén",
publisher = "Universidad Nacional Agraria La Molina",
year = "2018"
}
The experiment was carried out at the Experimental Irrigation Unit, belonging to the Soil Academic Department of “La Molina” National Agrarian University from September 2015 to February 2016. The subject of study was the response of the quinoa crop var. La Molina 89, comparing two irrigation systems, on the surface by furrows (S1) and localized by dripping (S2), under five nitrogen levels; 40, 80, 120, 160 and 200 kg / ha of nitrogen and a control not fertilized with nitrogen. The statistical design used in the investigation was split plots. The nitrogen levels were randomly distributed in subplots within each plot and the irrigation systems available in plots within each block. For irrigation systems and nitrogen levels, the means of yield of quinoa grain were statistically different. By drip, the average was of 3,367 kg / ha of quinoa grain, with a percentage increase of 34.4% with respect to the yield per furrows with an average of 2,503 kg / ha of quinoa grain. For Nitrogen Levels, the highest yield of 3.835 kg / ha that characterizes 120 kg / ha N with increases of 93.9% compared to 200 kg / ha of N that presents the lowest yield with 1.986 kg / ha of quinoa grain, and with 46.4% respect of the control not fertilized with nitrogen. In general, the maximum yield of quinoa is presented under a level of 120 kg / ha of N with 4,432 kg / ha of quinoa grain. The answer of the quality of the quinoa-grain of the var. La Molina 89, indicates that the largest percentages of protein in both irrigation systems, was observed a level of 120 kg / ha of N, with 18.5%, statistically different to the non-fertilized control with 16.1%. Also, the percentage of saponins in grain with 1.6%, statistically similar for irrigation systems and nitrogen levels, classification to the Molina 89 within the bitter quinoa. The total dry matter presented statistically different results in both irrigation systems. By drip was 57.5 g / plant with increases of 33.8% with respect to furrows. Also, for nitrogen levels the total dry matter increased as the applied level was increased, the highest value was presented at the level of 120 kg / ha of N with 65.1 g / plant, statistically different from all the levels under study and with increments of 50.3% with respect to the control not fertilized with nitrogen. And of 70.9% with respect to 200 kg / ha of N. With a drip irrigation requirement of 3,815 m3 / ha and by furrows of 7,366.8 m3 / ha the agronomic parameters, water use efficiency (EUA), harvest index (IC%) and leaf area index (IAF), present statistical differences by irrigation systems and by nitrogen levels. In the EUA of drip irrigation presents a value of 0.881 kg / m3 that exceeds the EUA by furrows with a value of 0.339 kg / m3, in 158%. The response for nitrogen indicates that the lowest EUA characterizes 200 kg / ha N with a value of 0.394 kg / m3 and the highest value in 120 kg / ha N with 0.790 kg / m3. With a percentage increase of 62% with respect to the control and 100.5% with respect to 200 kg / ha of N.
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