The management of winter jujube germination period is an important period in the management of winter jujube trees. The management of this period is of great significance for realizing the high yield, stable quality and high quality of winter jujube. The author combines the experience in practice, should do the following work in the budding period of winter jujube.
First, fertilization
It is suggested that the winter jujube trees of each result can be treated with about 2 kg of Jin Zhengda controlled-release fertilizer and about 3 kg of Bioscam organic fertilizer. It is better to fertilize the soil by digging it radially. The suitable fertilization depth is 20-35 cm. Temporarily loosen soil after fertilization.
Second, trim
1 Pulling branches: Pulling branches can play an irreplaceable role in regulating the shaping, vegetative growth, reproductive growth and light energy utilization of winter jujube trees. The budding period is the best period for the winter jujube tree to pull branches. It is easy to crack early and the effect is too late. Generally pulled to about 70 on it. 2 Stubbles: Eradication of excessively sprouted buds at the budding stage will be eradicated in time to reduce the consumption of nourishing nutrients. The erased buds should be brought out of the garden to be destroyed to prevent the development of pests in the garden. 3 Topping: The jujube head germinated on the jujube stocks in late April, leaving 2 to 3 jujube cranes for topping to control vegetative growth and promote reproductive growth. 4 buds: for some space where there is no growth of shoots, cut the phloem above the bud with a knife (not to hurt the xylem) at 0.5 cm above the bud to promote the germination of the bud.
Third, plastic film coverage
In order to improve the low temperature and maintain the soil moisture, it is recommended to cover the plastic film within 1 meter of the tree plate, and to cover 3% phoxim particles before covering the film, in order to kill the underground overwintering pests such as jujube steppes and juvenile grasshoppers. effect.
IV. Pest Control
The disease and pest of winter jujube germinating stage focus on the prevention and control of blind and stink bugs, and also treat diseases such as red spider, jujube and other pests and Ganzi disease. 1 Trunk tied with plastic strips and poison ropes: A 6-10 cm wide plastic strip is wrapped around the trunk and the upper part is unwound, and the poison rope is tied on the lower part of the reverse roll. Replace it every 15 days, replace it, and destroy it centrally. This can be effective. Prevent and control the pests unearthed on this period. 2 Sathlophosulfuric acid particles: The jujube garden without a cover film was applied once a month in early April and later each time. Phoxim granules were applied and scratched to kill the unearthed wintering pests. 3 spraying chemical agents: germinating the whole garden spray 1 fungicide and insecticide, to kill the remaining pests and diseases. It is recommended to use 3-5 Baume of lime sulfur or 60% Baitai 1500 times spray sterilization before germination. It is recommended to use 48% chlorpyrifos 2000 times in the bud, or to remove 1000-1500 times of the 10% suspension, or 5% of the stuck 1500 times of the emulsifiable concentrate. The dry rot prevention and control department was conducted in early April. It is recommended to use fulvicid or 50% Tribecobene suspension 3000 times liquid for smearing. When applying, use a knife to cut the phloem at the lesion and then use the brush. Apply it. Apply once a week, smear 2-3 times.
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