| Abstract: In order to explore the high-yield and high-efficiency topdressing methods of Tianjia purple skin garlic during the regreening stage, taking local traditional fertilazation as control, four treatments were set up, namely no fertilization, topdressing high-potassium compound fertilizer, spraying balanced foliar fertilizer and spraying high-potassium compound foliar fertilizer, and the effects of different topdressing methods and fertilizers on the yield and economic benefits of Tianjia purple skin garlic were studied. The results showed that compared with the control of traditional fertilizer, no fertilization during the regreening stage of garlic would lead to the weakening of plant growth and significantly reduce the yield of garlic by 10.53%. The growth and yield of garlic sprayed with balanced foliar fertilizer 'Lüzhuangsu' had little change, but the fertilizer input was
effectively saved. The growth of garlic with high-potassium compound fertilizer 'Beishuoguo' and spraying highpotassium compound foliar fertilizer 'Liangguosu' was significantly enhanced, the yield was significantly increased by 314.97 kg per 667 m2 and 103.75 kg per 667 m2, respectively, and the income was increased by 2 520.24 yuan per 667 m2 and 830.48 yuan per 667 m2, respectively. Therefore, in order to improve the yield and economic benefits, high-potassium compound fertilizer should be applied in the regreening stage of garlic. |