Effects of chemical fertilizer reduction and different amounts of compost on yield and quality of mini Chinese cabbage

YANG Jiaojiao; WEI Baihong; CHEN Wenxu; MA Jizhong; MAO Lili; TIE Jianzhong; HU Linli; YU Jihua

doi:10.16861/j.cnki.zggc.202423.0586

Abstract：In order to screen out the best fertilization treatment suitable for the growth of mini Chinese cabbage,no fertil-ization(NF)was used as the control,the local chemical fertilizer application amount(C)and the local chemical fertilizer application amount reduced by 30％(R)were the two chemical fertilizer application levels;0,400,600,800 kg·667 m-2 were four compost application levels.The two factors were combined into 8 treatments to explore the effects of fertiliza-tion treatment on growth,yield and quality of mini Chinese cabbage.Compared with the control,the plant width and ball height of the treatment with local chemical fertilizer reduction of 30％+600 kg·667 m-2 compost(R6)increased by 33.11％and 26.23％respectively,which were higher than those of conventional fertilization and chemical fertilizers.Oth-er treatments that reduced fertilizer use;R6 increased both dry and fresh mass compared with other treatments;the biologi-cal yield and economic yield of R6 increased by 52.23％and 120.21％,respectively;and the R6 treatment increased the vi-tamin C,soluble sugar,soluble protein and amino acid contents of mini Chinese cabbage and reduced nitrate content sig-nificantly.The principal component analysis results showed that the R6 treatment ranked the highest.In summary,30％re-duction of local chemical fertilizer plus 600 kg·667 m-2 compost treatment can significantly promote the growth of mini Chinese cabbage,increase yield,and improve quality.This fertilization method can provide scientific fertilization basis for the high-yield and high-quality production of local mini Chinese cabbage.