Global trial programme on nutrient use efficiency (2014–2023)
From 2014 to 2023, POLY4's nutrient use efficiency (NUE) was tested in over 200 field trials across different crops and regions.
Compared to standard fertilisation programmes, POLY4 fertilisation programmes consistently came out on top. They helped plants use all 3 main nutrients more efficiently—meaning less waste, better growth, and more value from every application.
Numbers for NUE are company estimates based on results of field trials conducted in different regions of the world and different crops in 2014-2023 comparing POLY4 fertilization programs with standard NP, NPK and NPKS fertilization programs: 68 trials for N, 53 trials for P and 90 trials for K. NUE was calculated as relation of the amount of nutrient taken up by the plant to the amount of nutrient applied (nutrient uptake / nutrient applied)
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