Where such products aim solely at improving the plants' nutrient use efficiency, tolerance to abiotic stress, crop quality traits, degradation of soil organic compounds, or increasing the availability of nutrients in the soil or rhizosphere, they are by nature more similar to fertilising products than to most categories of plant protection products.
Kadar je namen takih proizvodov samo izboljšati učinkovitost izrabe hranil v rastlinah, povečati toleranco na abiotski stres, izboljšati kakovostne lastnosti kmetijskih rastlin, razgraditi organske sestavine v tleh ali izboljšati razpoložljivost hranil v tleh ali rizosferi, so po naravi bolj podobni gnojilnim proizvodom kot pa večini kategorij fitofarmacevtskih sredstev.