PHYTOTRON®
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Solving Nitrogen

Phytonim slows nitrification in the soil.

An organic nitrification inhibitor based on a neem-derived botanical extract, applied as a coating on urea or ammonium sulphate.

Where nitrogen goes, and where Phytonim works.

Applied urea becomes ammonium, which soil holds. Two oxidation steps turn it into nitrate, which leaches or escapes as gas. Phytonim slows those two steps.

Ureaor ammonium sulphate
NH4+Ammonium, held by soil
Ammonia oxidation
NO2−Nitrite
Nitrite oxidationPhytonim slows these two steps
NO3−Nitrate, mobile
LeachingNitrate moves below the root zone with water.
DenitrificationSoil microbes turn nitrate into nitrous oxide and nitrogen gas.
VolatilisationAmmonia lost to the air from surface urea. Not what a nitrification inhibitor addresses.

What the study measured.

A 45-day laboratory incubation study in paddy soil. Phytonim-coated urea and ammonium sulphate at 100% and 65% of the recommended dose, against uncoated fertiliser, sampled at 13 intervals over 45 days.

35 daysNitrification delayedCoated fertilisers delayed nitrification for 35 days of the 45-day study.
−14%Ammonia oxidation, coated ureaAgainst uncoated urea.
−24%Ammonia oxidation, coated ammonium sulphateAgainst uncoated ammonium sulphate.
−35%Nitrite oxidation, coated ureaAgainst uncoated urea.
−45%Nitrite oxidation, coated ammonium sulphateAgainst uncoated ammonium sulphate.
−17%Nitrate reductase activity, coated urea16% with coated ammonium sulphate, 21% with coated urea plus ammonifying bacteria.
+20%Soil dehydrogenase activity, coated ureaA marker of microbial activity in the soil.
+15%FDA hydrolysis, coated ureaA marker of overall microbial activity.

Lakshmanan Sriram, Thambusamy Sivasankari Devi, Muthunalliyappan Maheshwari, Subramani Krishnaraj Rajkishore, Raina Ashok, Uthandi Sivakumar. Evaluating the impact of an organic nitrification inhibitor on nitrogen availability and its influence on microbial population in paddy soil. Plant Science Today, 13 February 2025. doi:10.14719/pst.6652

Who it is for.

  • Fertiliser manufacturers and blenders coating urea or ammonium sulphate
  • Distributors and importers of speciality fertilisers
  • Climate-smart and regenerative agriculture programmes
  • Government and public programmes on fertiliser nitrogen

Specification.

Being confirmed for publication. Ask us for the technical data sheet.

Composition
[TO VERIFY]
Coating rate per tonne of urea or ammonium sulphate
[TO VERIFY]
Packs
[TO VERIFY]
Registration status
[TO VERIFY]

Talk to us about Phytonim.