Effects of chemical fertilizer reduction and organic fertilizer on yield and quality of tomato

HE Zhixue; ZHU Huixia; ZHANG Yuxin; WEI Min; TAO Xinglin; LU Liangxia

doi:10.16861/j.cnki.zggc.2024.0627

Abstract：In order to reduce the amount of chemical fertilizer used in the production of tomato in plastic greenhouse,im-prove the fertilizer utilization rate and further improve the quality of tomato.Tomato variety mouthfeel 18 was used as ex-perimental material,under the condition of fertilizer reduction,combined with solid bio-organic fertilizer and liquid organ-ic fertilizer made by starch biochemical liquid.Four treatments were set:No fertilization(CK),conventional fertilization(T1),30％reduction of fertilizer+bio-organic fertilizer(T2),30％reduction of fertilizer+Chunyoujia(T3),the experi-ment was conducted to study the effects of different fertilization modes on agronomic characters,fruit quality,yield and economic benefit of tomato in plastic greenhouse.Under the condition of chemical fertilizer reduction,adding bio-organic organic fertilizer or Chunyoujia fertilizer had the best effect on promoting tomato growth,improving fruit quality,increas-ing yield and economic benefit.Compared with T1 treatment,T2 and T3 treatment could significantly improve tomato agronomic character indexes and quality,the yield significantly increase by 4.7％and 3.3％,respectively.Principal component analysis suggested that the fertilizer mode of reducing chemical fertilizer and supplementing with bio-organic fertilizer had a better effect on the growth,quality,and yield of tomato.In general,under the condition of chemical fertilizer reduction and balanced fertilization,applying bio-organic fertilizer 200 kg·667 m-2 or Chunyoujia 10 kg·667 m-2 could effectively improve the fruit quality,yield and economic benefit of facility tomato,which was the optimal fertilization mode in the process of facility tomato production in this area.