Response of Yield and Yield Component of Fenugreek to Irrigation Intervals, Potassium and Zinc

Aims: This study was conducted to evaluate the effect of irrigation intervals, potassium and zinc fertilizers treatments on fenugreek,
Place and Duration of Study: The experiment was conducted in Agriculture and Natural Resources Research Center of Khorasan-e-Razavi, Mashhad, Iran in 2010.
Methodology: Experimental design was split plot based on randomized complete block with three replications. Irrigation intervals (5, 10 and 15 days) and fertilizers (50 kg ha-1 Zn, 250 kg ha-1 K, Zn+K and control) were as main plot and sub plot, respectively.
Results: The results showed that the highest biomass (120.8 g.m-2) and seed (36.39 g.m-2) yield were related to irrigation interval 5 days. Between two irrigation interval 10 and 15 days, no significant differences were observed. The effect of fertilizer on biological and seed yield was not significant. The effects of irrigation and fertilizer levels on any of the seed yield components were not significant.
Conclusion: The insignificant response of the plants to fertilization might be caused by meeting plants K and Zn demand by soil and/or the sensitivity and low K and Zn demand of the plants.