@ Santosh, yes you can apply nanofertilizer as soil application. Nanofertilizer alone can not maintain the soil fertility status as there requirement is low. But it can enhance the nutrient use efficiency, microbial activity as well as prevent leaching or volatilization (in case of N) as they release the nutrient slowly and more period than conventional fertilizer. Although nanofertilizer can apply through soil, hydroponic, aeroponic, sprinkler etc. but I personally feel to apply the nanofertilizer through foliage to activate the plant enzyme system so that more beneficial enzymes from plants may release to rhizosphere to mobilize more native nutrients.

A nano-fertilizer is a product in nanometer regime that delivers nutrients to crops. For example, encapsulation inside nanomaterials coated with a thin protective polymer film or in the form of particles or emulsions of nanoscale dimensions They have higher transport and delivery of nutrients through plasmodesmata, which are nanosized (50–60 nm) channels between cells. The higher NUE and significantly lesser nutrient losses of nanofertilizers lead to higher productivity (6–17%) and nutritional quality of field crops. It is proved that nano-fertilizer increased the nutrient use efficiency, crop yield , controlled release of nutrients , increased the microbes and plant activity, help crop to stress tolerant.

Is there any possibility to replace RDF of a crop with nanofertilizers based RDF in near future or it will continue to be used as supplementary nutrient chain supply..i agree with feedbacks of Dr Tarafdar and Dr Shyam...

J. C. Tarafdar A K Shyam Thanks for your valuable answers but i want to clarify the things whether it can be apply as soil application or not A K Shyam

I think I did talk about crops which evidently implies in soil, right.

A K Shyam okay sir thanks for your response

In my point of view. It is not a best way to apply nanofertilizes as soil application because nanofertilizes available in very less dose so how it is possible to distribute the equal dose in large scale. if even we can apply equal dose in large scale or in a field condition then there is a problem of losses of nanofertilizes through various process in a short term like leaching or volatilisation so how we can enhance the nutrient use efficiency. I think the best way to apply nanofertilizes through foliar spray. Only nanofertilizes can't maintain the fertility status of soil.

Vipendra Kumar yes I am agree with you

What you both Santosh and Vipendra seem to miss is the catalystic promotion of nano application leading to a better growth, please.

Can u please elaborate please the catalystic promotion of nano application A K Shyam Sir

Doe the nanomaterial degrade in the soil, during the application of Nano fertilizers to the soil A K Shyam and J. C. Tarafdar Sir.

@ Asif, yes it may degrade or agglomerate in the soil as well as it can be helpful in degrading soil to restore the soil because nanofertilizer helps to increase in beneficial microbial population in soil.

Use and emission of metal-based engineered nanomaterials (MENM) is steadily increasing, concern of adverse effects on soil communities is rising. MENM are not only toxic to various organisms in soil, but can bioaccumulate, trophically transfer and even biomagnify in some systems.

Thanks sir A K Shyam and J. C. Tarafdar