Synergistic Enhancement of Rice Yield and Quality by Combined Slow-Release Fertilizer and Urea Under Straw Incorporation Through Optimized Grain Filling and Starch Biosynthesis
Background: In Northeast China’s cold rice (Mollisol) regions, low temperatures slow straw decomposition, causing early microbial nitrogen (N) immobilization that competes with crop demand. Delayed N release from slow-release fertilizer (SRF) exacerbates this deficit, hindering high yield and grain quality. Methods: A...