Paper Details

Effect of humic acid on different cultivars of potato tubers (Solanum tuberosum)

Mehdi Effatnezhad, Saeed Safaridolatabad

DOI: https://dx.doi.org/10.12692/ijb/5.12.12-17

Int. J. Biosci. 5(12), 12-17. December, 2014. (PDF)

Abstract:

To evaluate the effect of humic  acid fertilizer on the yield of potato cultivars in the climatic conditions of Damavand, a factorial experiment based on randomized complete block design with three replications was conducted. Treatments included a humic acid at three levels (non-use, single-and double-consumer) and the three levels (Agria, Sante and potato), respectively. Number of leaves, chlorophyll A and B, carotenoids, wet bulb and dry bulb and tuber yield per plant was measured. Between cultivars in tuber yield per plant was significant at the 1% difference and Agria had the highest yield and the lowest Sante. The humic acid levels in terms of tuber yield differences were observed in the 1% significance level, the highest yield of humic acid was consumed twice. Interaction effect showed the highest yield for the treatment of humic acid is consumed twice Agria. Research results indicate that the performance by the use of humic acid and humic acid no significant difference between once-and twice the performance of Agria tubers than the usual is no longer in Islamabad.