Effects of diffrents levels of nitrogen and zeolite on traits qualitative andquantitative of potato in arak region

To investigate the effects of different amounts of nitrogen and zeolite on quantitative and qualitative characteristics of potato varieties، Agria factorial experiment based on randomized complete block design in three replicates in the field located 5 km Morales research university، was conducted in the spring of 1388. Factors studied included three levels Nytrvn 96، 184 and 276 kg per ha and four levels of zeolite zero، two، four and six tonnes per hectare were Klynvptylvlyt type. The results of variance analysis showed that different amounts of nitrogen and nitrogen content of zeolite on the gland، gland crude protein، and the remaining gland Nytrath N ha 1% probability level was significant. Zeolite and the impact on the number of tubers per plant at 5% level of probability was significant. High performance value of 276 kg of pure nitrogen with the rate 13/47 Hktarbdst tons respectively. Zeolite interactions and nitrogen levels on yield per unit gland was significant. Gland with the highest amount of 276 kg of pure nitrogen and six tons of zeolite was 61 ha significant difference with the consumption of 184 kg N treatment and six tons of zeolite was not. So with less nitrogen fertilizer consumption to 184 kg ha can function without a significant reduction in nitrogen fertilizer efficiency will to act. Zeolite with increasing intake of nitrogen accumulation in the gland decreased Nytrath harmful. Keywords: