Cultan fertiliser application — where a nitrogen fertiliser (typically ammonium sulphate solution) is injected at a high rate in a targeted spot — remains a niche practice. German manufacturer KWD is hoping to change all of that with its new injector
In certain parts of Germany the practice of targeted high dose ammonium nitrate is becoming more widespread. Known as CULTAN (Controlled Uptake Long Term Ammonium Nutrition), pockets or depots of high concentration nitrogen are created to act as valuable nutrient reservoirs for the growing crop.
