Application of topdressing in adult jujube trees

Adult jujube topdressing is mainly divided into three stages: (1) shoot stage: mostly in April jujube bud germination, each plant after 25 kg of human excrement or 1 to 2 kg of diammonium phosphate, to promote the form of shoot, leaf and bud;(2) early fruit stage: June flowering and fruit setting peak period, nitrogen requirements are greater, each plant after 0.5 to 1 kg of urea;(3) fruit expansion stage: each plant put 50 kg of manure and calcium magnesium phosphate 2 kg, to promote jujube fruit growth and enhance tree vigor.