Abstract
Two depths of seedbed preparation—5 and 10 in. ( 13 and 26 cm)—and two methods of fertilizer application—broadcast before plowing and banded at planting time—were compared in an irrigated experiment that was conducted for 3 years. Fertilizer, regardless of method of application, significantly increased the yield of No. 1 tubers by 27% and of total tubers by 23%. Depth of seedbed preparation had no effect on the yield or specific gravity of potatoes. On a soil that apparently does not have a compacted layer, it is not feasible to increase the yield of potatoes by deep seedbed preparation or by deep incorporation of fertilizer.
Resumen
Dos profundidades de aradura—5 y 10 pulgadas (13 y 26 cm)—y dos métodos de aplicatión de fertilizantes—distributión antes de la aradura y, en bandas al tiempo de siembra—fueron compatados en un experimento bajo irrigatión que fue llevado a cabo por tres ańos. Los fertilizantes, independientemente del método de aplicación incrementaron significativamente la cosecha de tubérculos de clase No. 1 en 27% y del total en 23%. La profundidad de preparación del terreno no tuvo efecto sobre la cosecha o la gravedad específica de los tubérculos. Sobre un suelo que aparentemente no tiene una capa compacta, no es factible incrementar la cosecha de papas con una profunda preparatión del terreno o incorporatión del fertilizante.
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Dubetz, S. Effect of two depths of seedbed preparation and fertilizer on netted gem potatoes. American Potato Journal 52, 263–267 (1975). https://doi.org/10.1007/BF02852988
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DOI: https://doi.org/10.1007/BF02852988