Preliminary Study on Application Effects of Three Humic Acid Water-soluble Fertilizers on Pakchoi
To study the effects of three humic acid water-soluble fertilizer products of"Tianhebairun","Heibaogong"and"Senzhengda"on the yield and economic benefits of pakchoi.From August 2020 to August 2022,the experiments on the effects of three different humic acid water-soluble fertilisers were carried out at different locations in Yongqiao District,Suzhou City,with three treatments:base fertilization+foliar spraying of humic acid water-soluble fertilizer,base fertilization+foliar spraying of water and base fertilization(CK).The results showed that,on the basis of base fertilization,three humic acid water-soluble fertilizers could promote the growth and development of pakchoi in different degrees,effectively improve the yield components of pakchoi,be helpful to the formation of the yield of pakchoi,and had a remarkable effect on the increase of the yield and economic benefit,the increase range was 7.11%～9.32%.
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