Soybean was seed-coated with Sodium humate,Rhizobia and other fertilizers,and leaf sprayed with Sodium humate.Among the treatments,seed-coated with Sodium humate, Rhizobia(КБ11+ММ117),Ammonium molybdate and leaf sprayed Sodium humate increased leaf area,photosynthetic potential,improved nodule number,weight and nitrogen-fixing efficiency,hence,got the highest seed yield of 2360 kg·ha-1,which was 22% higher than that of control.
References:
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[2] Посыпанов,Г.С.Методыизучениябиологическойфиксацииазотавоздуха.М.:Агропромиздат,1991.300 с.