Effects of different foliar fertilizers on the growth and fruit quality of greenhouse tomato
In order to screen suitable foliar fertilizers for the growth of facility tomato in southern Xinjiang,improve to-mato yield and quality,Ruifen 518 was used as the test variety,and randomized block experiment was conducted with water spraying(CK)as the control.Four foliar fertilizer treatments were set up,including humic acid water-soluble fertil-izer(T1),fluid boron+potassium dihydrogen phosphate combination(T2),amino acid water-soluble fertilizer(T3),and trace element water-soluble fertilizer(T4).The effects of different foliar fertilizer treatments on tomato growth indica-tors,photosynthetic indicators,yield,and quality indicators were studied by spraying four times from the seedling stage.The results showed that compared with CK,the four foliar fertilizers had varying degrees of positive effects on promot-ing tomato growth,improving photosynthetic characteristics and yield,and improving fruit quality.Among them,the trace element water-soluble fertilizer(T4)significantly promoted plant growth compared with CK,with significant in-crease of 8.74% in chlorophyll content,a significant enhancement of photosynthesis,significant increase of 10.54 per-centage points in commercial fruit rate,significant increase of 10.45% in yield,and significantly increase in tomato sin-gle fruit mass,lycopene,soluble sugar,vitamin C,total phenols,and flavonoids content.In summary,water soluble fertil-izer treatment of trace elements in southern Xinjiang can effectively promote growth,improve photosynthesis,increase yield and improve quality,and this treatment provides a theoretical basis for building a technical system to improve toma-to yield and quality.