Nano-fertilizer is one of the most promising organic fertilizer we all know but when i went through some literature i found about nanotoxicity. As the nano-particle used in nano-fertilizer change the enzymatic activity of plant, can also change the same in humans. Then how it is safe to environment????? How it will not act the same in human beings ????
Very often , nanopackaging for storage fruit juice is used , perhaps this causes a much stronger possibility of nano-toxicity than use of nano-fertilizers in raising the productivity of different crops. I thinking , use of nanofertilizers are comparatively much safer...
Nanotechnology is still in the infancy stage so the use of nano-fertilizers is under testing. Scientists found out some of their potential in increasing crop productivity, in targeted delivery, in slow release, and in enhancing photosynthesis activity as well as germination of seeds.These topics are quite important in the science & industry of agrochemicals.
Safety tests are usually lengthy & costly so we need to wait until well-established health authorities provide their comprehensive evaluation. Until then, there is no harm if studies are made at bench-scale as a preparation for the "near" future.
Use of fertilization at critical doses is safe for plants , animal and human beings. We have conducted a large number of experiments and we found safe limit of many nano-fertilizers. For example in case of nano-P it is 40 ppm concentration to apply as foliage, similarly for nano-Zn it is 10 ppm concentration , for nano-Mg it is 20 ppm concentration, for nano-Fe it is 30 ppm concentration, for nano-K it is 50 ppm concentration, nano-N it is 80 ppm concentration and so on.... Use of nano-particle as foliage triggers the different co-enzyme system to help the plants release the enzymes through roots up to their potential which help in mobilize the native unavailable nutrients to be available to plants for nutrition. Resulted less requirement of fertilizers from outside application. To fertilize plants through nano-nutrients, the requirements are very less, which are non-toxic for animals and human beings as the particles are entered through the cuticle or stomota or any holes of the plant parts and moves through the cell sap. After triggering the co-enzyme system it either absorbs as a nutrient on plant parts or accumulated in the vacuole as mega particle. Because during travelling the particles become naked and aggregation is going on. Therefore, their is no risk of fertilization, if safe doses are used.
Very often , nanopackaging for storage fruit juice is used , perhaps this causes a much stronger possibility of nano-toxicity than use of nano-fertilizers in raising the productivity of different crops. I thinking , use of nanofertilizers are comparatively much safer...
Very good answer Dr.Tarafdar,nano fertilizers when used in the safe doses have no toxic effects on human health ,this can not altered the need for deep studies on this fertilizers toxicity.
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