新型果树化学促控剂──ＰＢＯ近年来，江苏省江阴市农业局引进了新型果树化学促控剂──ＰＢＯ，经在各地示范推广，果树获得大幅度增产。据重点调查：ＰＢＯ应用于四年生红富士、新红星等苹果树，投入一次，连续三年平均亩累计增产果品３３４公斤，增产值１０１２２元；... In recent years, Jiangyin City, Jiangsu Province, Bureau of Agriculture introduced a new fruit tree chemical promoter ─ ─ PBO, demonstration and promotion around the substantial gains in fruit trees. According to the key survey: PBO used in four-year-old Red Fuji, the new Red Star and other apple trees, put once, for three consecutive years the cumulative yield of fruit 334 kg, increase production value of 10122 yuan; ...