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Urea is a cost-effective source of nitrogen (N) but losses due to volatilisation remain a challenge. Kynoch has a solution. Through further innovation and enhancement we present Kynoplus Pro® powered by Anvol, a product that contains the two active ingredients duromide and NBPT (Figure 1) that work in synergy to limit N losses. The new formulation is more stable to maximise its efficacy in various conditions.
Figure 1: Duromide and NBPT molecules.
Important research-based facts
- Low pH does not prevent urea volatilisation, but Kynoplus Pro® reduces losses to just 4%, ensuring more N remains available for plant uptake.
- Temperature affects volatilisation. Volatilisation still occurred at 28 and 38°C. However, Kynoplus Pro® reduced these losses by up to 79% in both cases.
- Dry soil does not guarantee lower losses, and a small amount of moisture can trigger the volatilisation process. However, even after 60 days on the soil surface, Kynoplus Pro® reduced N losses with 78%.
- Irrigation after application is not sufficient. Research shows that even with 10mm of irrigation, losses still occur. Kynoplus Pro® provides more effective protection against N losses.
- Incorporation of fertiliser does not always prevent losses. Even with 5cm of tillage, significant losses can still occur. Kynoplus Pro® further minimises these losses.
- More urea is not the solution. Increased urea concentrations accelerate volatilisation, with losses that can increase from 36% at 30kg N/ha to 52% at 150kg N/ha.
- Enhanced N uptake and higher yields. With Kynoplus Pro®, plants have higher N levels that ensure improved nutrition and higher yields.
Maximise N = maximise yield
Figure 2 shows that the benefits of Kynoplus Pro® directly extend to higher yields over various N levels and seasons. This technology ensures improved N utilisation and profitability. Do not accept losses as a given – Kynoplus Pro® is the key to effective N management and improved harvests.
Figure 2: Average of eight trials conducted between 2016 and 2018 in Virginia, Kentucky, Illinois, and Tennessee.
Kynoplus Pro® (Anvol) registration number M295 under Act 36 of 1947. For more information, visit www.kynoch.co.za. – Hentie Cilliers, optimiser agronomist, Kynoch
