NANO UREA AND NANO ZINC: IMPACT ON GERMINATION AND GROWTH IN FINGER MILLET (Eleusine coracana (L.) Gaertn)
Loading...
Date
2023-02-02
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The productivity of rain fed crop mainly depends on early seedling establishment and agricultural practices like fertilizer use. A good seedling establishment depends on the seedling vigour index which is agronomical trait and sign of potential seed germination, seedling growth and tolerance to adverse climatic factors. It significantly improves the speed, uniformity and the percentage of germination and it also depends on fertilizer application. But major limitation of conventional fertilizers is low nutrient use efficiency and high cost. One important approach to
address this issue is to use nano fertilizers. Nano particles are having high surface area, high reactivity, better catalytic activity and rapidly dispersible properties which support better uptake of nutrients in turn increases the yield. We did the germination experiment among the finger
millet genotypes and selected the low and high seedling vigour varieties which are GPU 28 and KMR 204 respectively. These varieties used for nano fertilizer application by different treatments like seed priming(1ml/L), foliar application(2ml/L) and combination of both by nano urea and
nano zinc in pot culture and compared with recommended dose of fertilizers. We didn’t get any significant results for nano urea when compared to recommended dose of fertilizers but nano zinc showed better performance like recommended dose of fertilize in root length, shoot length biomass and as well as yield parameters. Lower lipid peroxidation and accumulation of free radicles was observed in nano zinc but not in nano urea indicating significance of nano zinc in improving finger millet productivity.
Description
Thesis