Organic nitrogen is important for plant growth, but too much of it can cause a range of problems. Over-fertilization, improper composting, or runoff from nearby agricultural areas can all contribute ...

Research into a nitrogen isotope-based testing system being pioneered in Britain could provide a vital new tool in ensuring valid organic certification for food and drink products. According to the ...

Nitrogen test plots confirm right timing and placement of applications increase yields. To achieve high yields, you have to keep the corn plant happy. From the beginning growth stages to harvest ready ...

With bagged ammonium nitrate fertiliser prices rising above £600/t, soil mineral nitrogen testing has become essential for one Hampshire farm manager as he seeks to optimise nutrition across all his ...