Use for boosting low nitrogen levels and stimulating vigorous growth. Are your plants looking a bit pale? This may well mean that they are lacking in nitrogen. It also means that they are lacking in chlorophyll which is the plant’s food factory. If they are lacking in chlorophyll then they don’t manufacture as much food as they should and the crop will be smaller than it should be. A low nitrogen uptake reduces the amount of proteins and amino acids created by the plant which reduces the quality. So is there enough nitrogen in the nutrient concentrates you buy? Yes usually there is as long as you have bought a quality nutrient. The problem is not only in the amount of nitrogen but also in the form as well as in the amount of other nutrients and non nutrient salts in the solution.