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Pastos y Forrajes

versión impresa ISSN 0864-0394versión On-line ISSN 2078-8452

Resumen

PENTON-FERNANDEZ, Gertrudis; MARTIN-MARTIN, Giraldo Jesús  y  RIVERA-ESPINOSA, Ramón. Effect of the spatial arrangement and the intercropping with mycorrhiza-inoculated Canavalia ensiformis on the agroproductive response of Morus alba. Pastos y Forrajes [online]. 2016, vol.39, n.3, pp.92-99. ISSN 0864-0394.

A study was conducted at the Research Station Indio Hatuey in order to determine the effect of the spatial arrangement of the plantation and the intercropping of AMF-inoculated jack bean (CeAMF), without irrigation and without mineral fertilization, on the agroproductive response of mulberry. The treatments consisted in single row (0,50 x 1,00 m), with 20 000 plants ha-1 with and without CeAMF; and double row (0,50 x 0,50 x 1,00 m), with 26 666 plants ha-1, with and without CeAMF. The edible dry mass yield and the concentration of N, P and K were evaluated for two years. The concentration of N in the edible biomass did not vary, and its values (2,09 and 2,4 %) were below the optimum range for the mulberry crop. Significant effects were found in the concentration of P, of the CeAMF treatment as well as of the highest planting density and the double row, and the values were 0,16 and 0,19 %. The highest planting density and the double row influenced the increase of the concentration of K, unlike CeAMF. The highest values (2,22 and 2,37 %) were ranked, just like in P, within the optimum range reported for the species. The edible biomass yield did not differ among treatments and varied from 8,38 to 10,51 t ha-1. It is concluded that the spatial arrangement with higher planting density, double row and CeAMF guaranteed a better agroproductive response of mulberry in terms of P and K concentration in the edible biomass; although, from the point of view of forage yield, no treatment proved to be feasible under the conditions of insufficient nutrient availability in the soil and without irrigation.

Palabras clave : forages; phosphorus; potassium.

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