Respuesta de la soya (Glycine max L. Merril) a calendarios de riego en el valle del Yaqui, Sonora.
1986
Ortiz Enriquez J.E.
This study was conducted on clay soil during the spring-summer cycle of 1983. Six different irrigation schedules with varying numbers of days between watering were evaluated for the soybean varieties Cajeme and Yaqui 80, planted on May 13 and June 13. A divided plot design was used, arranged in strips to make it easier to control the watering, with the large plot corresponding to the watering treatments and the small plot to the varieties. The variables evaluated were: grain yield, weight of straw, final plant height, hectolitric weight, kilograms of green seed per ton, irrigation water table applied, of seed/m3 of water applied and the phenology of the crop. Results: highly significant differences in grain yield were found for differences in watering treatments, varieties, interaction of dates with variety and of dates with varieties with watering treatments. The best were: 0-40-23-20-15-15 (0 indicates pre-planting watering the following indicate the auxiliary watering days) and 0-25-20-21-15-15-12, which the pre-planting watering and seven auxiliary waterings, which was statistically equal to the previous treatment. The best variety was Yaqui 80. In the interaction of dates with varieties, Yaqui 80 had the best yield from the May 13 planting, whereas the yield of Cajeme was the same for both planting dates. In the interaction of the three factors studied, the Yaqui 80 variety produced a greater yield on the May 13 planting date with treatments 2 and 5, consisting of pre-planting watering plus five and seven auxiliary waterings, respectively.
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