The invention discloses a method for improving yield of a jujube tree. Particularly, ridging is performed after a jujube sapling is planted so that the
soil surface of the sapling is higher than an original ground by 15-30 cm. After herbicide is sprayed, a ground film is paved on each of two sides of a sapling
ridge. The jujube sapling is fixed at the central part of two ground films. After a
pesticide is sprayed on the planted sapling, bagging is performed. The upper opening and the lower opening are tied. The upper tied opening is separated from the top end of the sapling by 5-8 cm. The lower sealed opening is arranged at the root part of the sapling. Debudding, ventilation and untying are performed. On the condition that a
bud has grown to a length of 18-22 cm in the bag, debagging, additional
fertilizer application and
insect controlling are performed.
Girdling is performed at the early period in blooming of the jujube tree. Through integrated detail
processing on the steps of ridging, film covering, bagging, debudding, ventilation, untying, debagging, additional
fertilizer application,
insect controlling and girding, the cultivating method has advantages of improving
survival rate of planting, increasing yield of the jujube tree in the current year, effectively improving fruit setting, preventing fruit falling, promoting fruit swelling and improving yield of the jujube.