Jujube early spring management to do these points

Top dressing 1 good budding fertilizer. Fertilizer is dominated by nitrogen fertilizer, and appropriate amount of phosphorus and potash fertilizer are used. This fertilizer accounted for 30% of the annual fertilization amount. A jujube tree generally applies half a catty of urea, 1.5 pounds of superphosphate, plus one person's animal dung water, the amount of fruit is more or less should increase or decrease the amount of fertilizer. Fertilization methods: digging nests or trenches under the canopy. 2 Diligent root fertilizer. In the flowering leaf stage, the crown was sprayed with 0.2% boron once, and 0.3% potassium dihydrogen phosphate plus 0.4% urea was sprayed for 3 to 4 times during stable fruiting and leafing. Each interval was 5 to 7 days. Insufficient nutrition.

Spray water reasonably. Jujube trees are sprayed with clear water in the morning and evening when the temperature is dry, ensuring the flowering and pollination of jujube trees and increasing the fruit setting rate.

Do a good job of soil management

The first is to fully cultivate cultivating loose soil without cultivating ripper or digging the ground in winter, so as to improve fruit setting; secondly, to open a trench “watile type” cabin or to make a tree plate to thicken the root and fertile soil layer; It is a straw-covered tree tray. Straw mulching not only moisturizes, warms, but also fertilizes.

Doing good management

Pre-flowering is an effective measure to reduce the nutrient consumption of jujube trees and increase the fruit setting rate. Therefore, jujube trees that are not pruned or not thoroughly trimmed during the winter season must be trimmed or sheared. At the same time, do a good job in promoting, pulling, controlling, hanging and other jujube tree branches management work. To do a good job of wiping the date, the jujube tree's reproductive growth and vegetative growth are synchronized, wipe the date of the head is to control reproductive growth, promote vegetative growth, and improve fruit setting.

Do a good job of spring pest control

The spring is the jujube budding period. At this stage, the jujube tree mainly consists of jujube steppe, jujube mythimbus, jujube cockroach, red spider, jujube leaf acacia, turtle wax clam, jujube fly-like, anthrax, black rot. , brown spot and other pests and diseases. Prevention and control of these pests and diseases can take the following measures: 1 Spray 3 to 5 Baume degrees of lime sulfur before germination, control of red spider, turtle wax, anthrax, black rot, brown spot, etc., remove pathogens overwhelming, reduce early Source of infestation; 2 Induction of juvenile Mythimna separata with black light; 3 Spraying on the ground and shaking the tree in the morning so that the frightened insects are poisoned to death. When the jujube trooper reaches 7.5 heads/hundred-strands or the jujube leafhopper reaches 0.5 head/leaf, the tree is sprayed with 20% fenvalerate 5000 times solution, or 50% phoxim + 0.3% urea; 4 in the distance A 1 meter radius of the trunk of the tree is sprinkled with phoxim granules in the tree tray, and it kills the unearthed jujube and jujube buds.

Do a good job in the management of newly planted jujube trees

1 loose soil, watering. Loose soil is suitable for shallow pine, while water is loose, each plant must be irrigated; 2 straw covers the tree plate, width is more than 1 meter, thickness is 5~7 centimeters; 3 thick soil stratifies good tree plate; 4 strict control Unreasonable interspecies. It is strictly forbidden to plant corn, red hoe and high pole crops.

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