Question: This year, more than 80% of the jujube garden buds are less and weakly differentiated, with severe yellowing and dryness. How is this going to happen?

A: The reason for this situation is that the jujube tree last year was too fruitful and nutrient was consumed. In the harvesting stage of jujube fruit, rust commonly occurred in leaves and fell off in advance. There was no nutrient accumulation in the late stage. In spring, fertilizer was not applied in time. After germination, the growth of jujube hanging consumed most of the nutrients for flower bud differentiation and bud growth. There are few, and the buds that differentiated are less and weaker. The tree vigor is too weak and the buds are dry and fall off. Even the branches are dry and dead.

The main task of the current jujube tree is to protect buds and preserve flowers. First, watering and fertilizing should be applied as soon as possible. Fertilization conditions without watering should be immediately applied to foliar spray, spraying once every 5 to 7 days, and even spraying 3 times. Spraying foliar fertilizers should avoid hormone-containing components, especially gibberellic acid (Jinji), because use of hormones will speed up jujube hanging and jujube head growth, resulting in less nutrients, flower bud differentiation and flower buds. If the growth is unfavorable, pure fertilizer should be used for the foliar fertilizers. The second is to control the hazards of the green-lipped iridescent elephants and jujube's footsteps. The lands with severe occurrences of green-blind and elephant's footsteps should be treated with 70% imidacloprid 5000 times solution and 5.7% methotrexate 6000 times solution. The third is to control the growth of new jujube heads in advance to carry out summer cuts. The new jujube heads on the trees should be cut off from the base to reduce the consumption of nutrients, concentrate the nutrient supply buds, and ensure flowering and fruit setting.

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