• As is well-known , rational use of biochar can increase crop yield in barrier soil. This is due to the improvement of soil nutrient content, the control of obstacle factors, and the improvement of crop nutrient uptake and transformation efficiency. But what is the mechanism by which biochar improves crop yields for crops harvested from grain,Increase grain number? Increase the number of ears? Increase grain weight? Are there any effects on grain formation during grain filling?
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