Effect of different levels of zeolite and irrigation interval on yield and some trait of potato

In order to study the effect of different levels of zeolite and irrigation interval on yield and yield components of potato var. Sante an experiment was conducted in strip plot design base on CRB with 4 replications. It was done in research field of Arak Azad University during 2009. Treatments were 3 levels of zeolite (0، 1500 and 3000 kg/ha) and 3 irrigation intervals (after 5، 10 and 15 days). The weight of dry matter، LAI، tuber yield، number of tuber per plant and chlorophyll index were studied. The result showed that zeolite application have a significant effect on yield، LAI، total dry weight but have no significant effect on number of tuber per plant and amount of chlorophyll index. Using 3000 kg/ha zeolit could increased yield in respect with no zeolit، but has not significant effect on chlorophyll index and number of tuber. Moreover، the irrigation intervals have significant effect on yield، chlorophyll index، number of tuber per plant، leaf area index، total dry weight but the interaction between irrigation and zeolite was not significant in any traits.