Long-running field trial links straw retention with stronger crop performance

A 15-year field experiment in northeast China has examined how no-till farming and straw retention affect soil fertility and crop performance.

The research connects changes in the soil with photosynthesis and the allocation of carbon and nitrogen within plants. Reported in Field Crops Research, the findings indicate that the amount of retained straw matters, with greater retention supporting stronger benefits in the studied system.

The results help explain why conservation practices can produce different outcomes under different management regimes. Rather than treating no-till farming as a single intervention, the work considers how soil conditions and crop residue management operate together over many growing seasons.