TUFENKCI, S. Et Al. 2006. Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils. FRESENIUS ENVIRONMENTAL BULLETIN , vol.15, no.4 , 295-300.

TUFENKCI, S., TURKMEN, O., SONMEZ, F., ERDINC, C., & Sensoy, S., (2006). Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils. FRESENIUS ENVIRONMENTAL BULLETIN , vol.15, no.4, 295-300.

TUFENKCI, Şefik Et Al. "Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils," FRESENIUS ENVIRONMENTAL BULLETIN , vol.15, no.4, 295-300, 2006

TUFENKCI, Şefik Et Al. "Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils." FRESENIUS ENVIRONMENTAL BULLETIN , vol.15, no.4, pp.295-300, 2006

TUFENKCI, S. Et Al. (2006) . "Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils." FRESENIUS ENVIRONMENTAL BULLETIN , vol.15, no.4, pp.295-300.

@article{article, author={Şefik Tüfenkçi Et Al. }, title={Effects of humic acid doses and aplication times on the plant growth, nutrient and heavy metal contents of lettuce grown on sewage sludge-applied soils}, journal={FRESENIUS ENVIRONMENTAL BULLETIN}, year=2006, pages={295-300} }