News report on fast tracking approvals for Nano Urea with incomplete trials is misleading

presents partial view of the existing facts and data available on the subject

Established and existing procedures fully followed for registration of the fertilizer as per Fertiliser Control Order (FCO), 1985

Nano Urea has been provisionally notified under FCO based on encouraging results and feedback received from ICAR and State Agricultural Universities

Central Fertilizer Committee (CFC) has recommended it based on data and after due deliberations with Department of Biotechnology (DBT)

SEP 4, 2022



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A leading national daily has carried a misleading news report today alleging that “Nano Urea has been fast tracked for approval despite incomplete trials”. The news report is erroneous, mis-informed and presents partial view of the existing facts and data available on the subject.


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It has been wrongly quoted in the news report that the process has been “fast tracked”. It is clarified that the established and existing procedure for registration of any fertilizer for notification as per Fertiliser Control Order (FCO), 1985 has been fully accounted for. Nano Urea has been notified provisionally under FCO based on existing procedure for introduction of fertilizers under FCO, 1985 which requires data from only two seasons. Nano Urea has been provisionally notified under FCO based on encouraging results and feedback received from scientists of ICAR and State Agricultural Universities. Central Fertilizer Committee (CFC), Ministry of Agriculture & Farmers Welfare (MoA & FW) has also recommended it based on data and due deliberations in this regard. In addition, Department of Biotechnology (DBT) has also been referred to for safety & biosafety issues. It is only after satisfaction with regard to efficacy, biosafety and biotoxicity that Nano Urea has been brought under FCO as a separate category of nano fertilizer.



Furthermore, the data is not limited to two seasons as have wrongly been communicated through the news report, as research and farmer field trials have been continued for last more than four seasons.

Consistent results have been recorded without any detriment to soil health/ fertility status (Table1).

Table 1. Season wise / Crop wise – Experimental trials undertaken

ExperimentsSeasonCrops & Trials (Nos.)
“On Station” TrialsRabi 2019-20 (24 Nos.)Cereals:  Wheat (11); Oilseeds:  Mustard (1); Vegetables: Onion (2); Capsicum (1), Cabbage (1), Tomato (3); Parthenocarpic Cucumber under polyhouse (1) Sugar Crops: Suru Sugarcane (1)
Summer 2019-20 (3 Nos.)Cereals: Paddy (1); Maize (2)
Kharif 2020 (16 Nos.)Cereals: Paddy (6); Maize (5); Pear millet (3) Fibres: Cotton (1) Vegetables: Okra (1)
Rabi 2020-21 (8 Nos.)Cereals:  Wheat (6); Oilseeds:  Mustard (1); Vegetables: Onion (1)
Summer 2020-21 (2 Nos.)Cereals: Paddy (1); Maize (1)
Kharif 2021 (21 Nos.)See Table 2.
 Rabi 2021-22 (19 Nos.)Wheat (8); Rapeseed/ Mustard (3); Onion (1); Groundnut (1); Sunflower (1); Ginger (1), Turmeric (1), Sugarcane (1), Paddy(1), Maize (1)
 Kharif- 2022 (7 Nos.)Paddy (3); Apple (1), Bajra (1); Fingermillet (2)
 Rabi -2022-23 (6 Nos.)Continued
“On Farm” TrialsRabi 2019-2093 crops; 11224 trials (9037 recorded)
Kharif 202044 crops; 1511trials (1435 recorded)
Rabi 2020-2134 crops; 1126 trials
Total11,598 Trials

For evaluation of Nano Urea, premium ICAR research institutes and state agricultural universities have been at the vanguard of nano urea trials.  Different aspects associated with crop productivity; reduction in fertilisers dosage, farmers profitability have been addressed through these trials. A list of some key research institutes / SAUs engaged in nano urea trials are as under (Table 2).

SNCropsLocationSeason/ Year Onwards 
1MaizeICAR-  CRIDA, Hyderabad, TelenganaKharif 2021 
2FingermilletAICRPDA Centre, BengaluruKharif 2021 
3Upland RiceAICRPDA Centre, Jagdalpura, ChattisgarhRabi  2021-22 
4Irrigated RiceIRRI-ISARC,VaranasiKharif 2021 
5Rainfed RiceIRRI-ISARC,VaranasiKharif 2021 
6Rainfed RiceIRRI-ISARC, AssamKharif 2021 
7WheatCSSRI Karnal, HaryanaRabi 2020-21 
8PaddyCSSRI Karnal, HaryanaKharif 2021 
9WheatAAU, Anand, GujaratRabi 2019-20 
10MaizeAAU, Anand, GujaratKharif 2021 
11WheatANDUAT, Ayodhya, UPRabi 2019-20 
12WheatMPUAT, Udaipur, RajasthanRabi 2019-20 
13WheatSKNAU, Jobner, RajasthanRabi 2019-20 
14WheatIARI, New DelhiRabi 2019-20 
15MustardIARI, New DelhiRabi 2019-20 
16PearlmilletIARI, New DelhiKharif 2019-20 
17WheatBAU, RanchiRabi 2019-20 
18PaddyUAHS, Shivamoga, KarnatakaRabi 2019-20 
19PaddyTNAU ( Bhavanisagar Stn.) Drone ExptKharif 2021 
20MaizeUAS GKVK, KarnatakaSummer 2019-20 
21MaizePJTSAU, TelenganaSummer 2019-20 
22OnionMPKVV, Rahuri, MaharashtraRabi 2019-20 
23CabbageIIHR, Bengaluru, KarnatakaRabi 2019-20 
24CucumberIIHR, Bengaluru, KarnatakaRabi 2019-20 

Summary of results of application of nano urea – liquid (Nano N) across different locations and agro-climatic regions has revealed that foliar application of nano urea at critical growth stages of crops like Rice, Wheat, Maize, tomato, cucumber and capsicum etc., lead to reduction in application of nitrogenous fertilisers and also increase yield in range of 3-23 % in wheat; 5- 11 % in tomato; 3-24 % in paddy / rice; 2-15 % in maize, 5 % in cucumber and 18 % in capsicum.

Science and scientific endeavours are a continuous process and significant efforts go in the process from concept to translation stage. Nano fertilizers are novel in the way that they provide immense opportunity in terms of addressing the challenges being faced by intensive agriculture practices currently underway which are ultimately harming the soil, air and water in the long run. It is therefore prudent that nano fertilizers like nano urea are holistically viewed in perspective of declining nutrient use efficiency (NUE) of chemical fertilizers and alternative solutions that need to be made available to farmers.

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