Hi,

1) they improve oxygen absorption since have higher surface area,

2) They will possess more tendency to react with water and maintain water moisture for long time

3) silica Nps are good anti-microbial properties

there are many applications are there for nano particles in soils and fertilizers.

There are many application of naoparticles in agriculture. See the following reference.

Nanotechnology: The new perspective in precision agriculture ( doi: 10.1016/j.btre.2017.03.002 )

Application of silicon nanoparticles in agriculture (DOI https://doi.org/10.1007/s13205-019-1626-7)

Swarup Roy @Arun Prakash V R

Please indicate any area where nanomaterials are being used in agriculture at the present. The economics of nanomaterials tell me that there would have to be very significant technical advantages for them to find application.

Dear Colleagues,

there are any some nanomaterials that can be used as chemical fertilizers. Fertilizers containing nanomaterials have shown promising results for growth and yield.

For more details, please see:

- A Review of Nano Fertilizers and Their Use and Functions in Soil

P. Selva Preetha and N. Balakrishnan

Int.J.Curr.Microbiol.App.Sci, 6(12): 3117-3133 (2017)

Available at: https://www.ijcmas.com/6-12-2017/P.%20Selva%20Preetha%20and%20N.%20Balakrishnan.pdf

- Nanotechnology Applications in the Food Industry

V Ravishankar Rai, Jamuna A Bai

CRC Press – Taylor and Francis Group (2018)

Available at: https://books.google.it/books?id=CM5JDwAAQBAJ&pg=PT64&lpg=PT64&dq=compound+nanomaterials+such+as+compound+chemical+fertilizers&source=bl&ots=RY31XOvDLA&sig=ACfU3U3VM1mDBzFiTbd_U8yQeWOLpiZzIA&hl=it&sa=X&ved=2ahUKEwjegaH4z-PiAhUBGewKHZuYCHAQ6AEwA3oECAkQAQ#v=onepage&q=compound%20nanomaterials%20such%20as%20compound%20chemical%20fertilizers&f=false

Best regards, Pierluigi Traverso

I still have nobody that can point to a commercial use of 'nanofertilizers'. Until they do, I will assume that the economics make this totally nonviable.

You can go through this article for better explanation, doi:10.3390/app9030499

Also the paper contains a list of Some approved nanofertilizers used in the world today and their compositions.