Engine of Growth
Nitrate is the most important component for the biosynthesis of nitrogen compounds in plants. There is no plant growth without nitrate! A consistently optimal supply of nitrogen with well-proportioned and timely fertilization is thus a prerequisite for healthy plant growth in horticulture and agriculture.
Nitrogen in Soil
Nitrogen exists in the soil in various forms:
organically bound (humus)
mineral (nitrate, ammonium)
Plants take up more than 80% of their nitrogen requirement as nitrate (NO3-), to a lesser extent also as ammonium (NH4+). Ammonium nitrogen is largely converted into nitrate nitrogen. Therefore, in horticulture and agriculture, nitrogen is mainly measured as nitrate.
There are several quick test methods. A short overview of the measuring possibilities can be found below or in our STEP Systems catalogue.