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Revista mexicana de ciencias agrícolas

versión impresa ISSN 2007-0934

Resumen

BALLESTEROS RODRIGUEZ, Elia et al. Management of nitrogen fertilization on yield components of triticale. Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.4, pp.721-733. ISSN 2007-0934.

Nitrogen fertilization is one of the most important factors in the growth and development of cereal crops impact. This study aimed to determine the effect of split application of nitrogen in different growth stages of two cultivars of triticale (X Triticosecale Wittmack), and its relationship with crop yield and its components. The culture was established in the village of Lerma, State of Mexico, during the winter-spring cycles (W-S) and summer-autumn (S-A) for the period 2012-2013. The evaluated cultivars were Siglo-TCL21 and Bicentenario with two doses of N in W-S (0 and 150 kg ha-1) and three doses S-A (0, 150 and 250 kg ha-1). Nitrogen (N) was fractionated into three stages of crop development: tillering (TI), terminal spikelet (TS) and flag leaf (FL). The dose of 150 was divided into: 1/3 TI, 1/3 TS and 1/3 FL, 1/2 TI and 1/2 TS and everything in TI; the dose of 250 was divided into: 2/5 TI, 2/5 TS and 1/5 FL, 2/5 TI and 3/5 TS. The experimental design was a randomized complete array blocks. The cultivar Bicentenario showed higher number of grains and Siglo-TCL21 higher weight of grain. With the dose of 250 kg N ha-1 values and biomass yield in both cultivars increased. Maximum yields for cultivars Bicentenatio and Siglo-TCL21 were obtained with 250 kg ha-1 when it was fractionated into 2/5 TI and 3/5 TS.

Palabras llave : X Triticosecale Wittmack; biomass; fractionation of nitrogen yield.

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