Do post?harvest crop residues in no?till systems provide for nitrogen needs of following crops?

Increased adoption of no-till systems in the Northern Plains has led to an increased volume post-harvest crop residue. A cool climate coupled with short growing seasons benefits from a conservation tillage approach by increasing water storage semi-arid areas where weather conditions are variable each year. The frost-free period presents challenges for residue decomposition and subsequent nutrient uptake is reduced heavy accumulated fields. combination soil management practices can be used optimize utilization, particularly nitrogen (N), including use cover crops, rotation diversification, variances fertilizer form, method, timing. Despite many being effective conserving N soil, they still may not meet demands succeeding crops season water- N-limited environments. Decomposition dependent on moisture, temperature, carbon/nitrogen (C/N) ratio Generally, residues have wider C/N than aged that accumulates surface over time. Adding reduce immobilization nutrients near heavily fields, making it more available utilization plants. Recommendations rates inconsistent throughout northern US long-term systems. This review highlights several decades known research yet points continued gaps needed producers fully support recommendations temperate climates.