THE EFFECT OF INOCULATION WITH AZOTOBACTER BACTERIA AND DIFFERENT LEVELS OF NITROGEN FERTILIZER ON 1-VEGETATIVE GROWTH OF POTATO PLANT (Solanum tuberosum L.)

Z. Sarhan, Taha

doi:10.33899/magrj.2010.34145

	THE EFFECT OF INOCULATION WITH AZOTOBACTER BACTERIA AND DIFFERENT LEVELS OF NITROGEN FERTILIZER ON 1-VEGETATIVE GROWTH OF POTATO PLANT (Solanum tuberosum L.)
Mesopotamia Journal of Agriculture
Article 3, Volume 38, Issue 0, 2010, Pages 5-10 PDF (0 K)
DOI: 10.33899/magrj.2010.34145
Author
Taha Z. Sarhan
Abstract
The study was conducted at Research field /Agriculture Research Station, Zakho, North of Iraq during spring 2005 and 2006 growing seasons to investigate the effect of inoculation with Azotobacter chroococcum (+,-) and varying levels of nitrogen fertilizer Urea 46% N ( 0, 100, 200 kg/hat.) on vegetative growth characteristic of potato plant Solanum tuberosum L. cv. Desiree , a factorial randomized complete block design (F.RCBD) was selected for the experimental with three replicates . The results showed that there was significant increase in all vegetative growth characteristic ( plant height , the number of stem , leave area/plant , total chlorophyll , the % of nutrition N, P, K, Ca, ) as a result for inoculation with Azotobacter , also for adding nitrogen fertilizer and for two growing seasons . The interaction treatment between inoculation with Azotobacter and adding nitrogen fertilizer at 200 kg/hac. gave the highest results in vegetative growth and for two growing seasons .

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