Effects of Co-Application of γ-Polyglutamic Acid and Chemical Fertilizer on Rhizosphere Microbial Community Structure and Function of Cotton at Different Growth Stages in an Arid Cotton Field
Long-term excessive nitrogen application in arid cotton fields increases nitrate leaching risk during fallow and disrupts rhizosphere microecology. To clarify the cross-growth-stage regulatory effects of the biostimulant γ-polyglutamic acid (γ-PGA) combined with chemical fertilizer on rhizosphere microbial communities,...