University and farm research led by Brian Arnall was conducted at eight research stations with area divisions in a 50:50 ratio, each occupying 8–10 hectares. The trials were established in various soil and climatic conditions, which allowed for the evaluation of the specifics of the No-till technology in different situations. This is reported by AgroReview The role of nitrogen and organic matter in the No-till system One of the main problems in applying No-till is the complication of nutrient cycles, especially nitrogen. Arnall emphasizes the importance of knowing not only the sources of nitrogen input – nitrogen fixation, industrial fixation, atmospheric precipitation, and plant or fertilizer residues – but also the pathways of its loss through plant residues, weathering, and leaching. In the organic matter formed in the No-till system, the balance between carbon and nitrogen plays a key role. For example, at a corn yield of 6 t/ha, the residues contain about 44 kg/ha of nitrogen ...