PJB-2011-377
EFFECT OF ADDING INORGANIC, ORGANIC AND MICROBIAL FERTILIZERS ON SEED GERMINATION AND SEEDLING GROWTH OF SUNFLOWER
M. JALALUDDIN1 AND MARIA HAMID2
Abstract
In a comparison made on the effect of adding inorganic, organic and microbial fertilizers in soil on the germination of seeds of 4 sunflower varieties viz., Hysun-33, Hysun-38, Helico-250 and SA-278 it was found that manure and triple phosphate had good effect as compared to the control series. Inoculation of microbial fertiliser (VAM-fungal spores) had no effect for 6 days and the percentage of germination of seeds was equal to the control series. On the emergence of seedlings there was a better seedling growth in VAM-fungi inoculated plants as compared to organic manure and inorganic triple phosphate fertilisers. Addition of 300 mg/kg of manure and triple phosphate showed better increase in growth and fresh and dry weights over the control. Addition of 500 mg/kg of manure and triple phosphate in soil showed lodging of seedlings. Inoculation of 500 spores/kg in soil showed remarkable effect on the growth of seedlings after 15 days and there was no lodging of seedlings. The increase in growth was due to the establishment of symbiotic association between the VAM-fungi in roots of sunflower plants which was evident under microscope.
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