Abstract:

In order to develop a kind of environmental protective liquid fertilizer for apple, quality improvement of reed vinegar on ‘Fuji’(Malus domestica Borkh.) apple have been studied in field. Research result showed, there was a direct effect of reed vinegar on leaf growth and photosynthesis of apple. Under a proper density, hundred leaf weights and net photosynthesis higher than control 18.03% and 325% respectively. further research also indicated that, color index, anthocyanidin content, individual fruit weight, ratio of sugar and acid, Vc content and soluble solids content under certain density(800 times ) have been significant improved compared to control. Form this research we can concluded that reed vinegar would be a good quality improvement fertilizer in apple production.