Potted jujube cultivation method
Potted jujube trees can be flowered in the same year, some of them can also be fruited, and small fruit red can be used. The jujube potted plants can be planted in open spaces, houses, and balconies with good lighting conditions. The breeding methods of potted jujube trees are introduced for reference. 1. Pots and nutritive soils: Potted jujube trees can be used for tile pots, pots, plastic pots, etc. Fertilizer soil 1/2 legume compost soil plus 1/2 garden soil, add a small amount of sand, 1 kg of soil nutrients per cubic meter, 25% NPK compound mix. 2, planting selection of root developed varieties, in the jujube tree dormant period of planting. Put a few pieces of broken tiles on the water seepage hole of the pot, put a small amount of sand on the bottom of the pot and then add part of nutritious soil. The roots of the jujube tree were spread in the pots, and the side of the jujube tree was patted while adding nutrients. Finally, the roots of the jujube tree were gently compacted and poured. After a period of time, the basin sinks and then adds some nutritious soil, leaving the basin mouth a few centimeters deep without filling as a water outlet. 3, fertilizer and water management potted jujube generally begins to flower from June, when the plant has higher humidity requirements. Every day, sunny days should be watered to keep the basin moist. The fine weather in spring and autumn is poured once every 1 to 2 days, and antifreeze water is poured in winter when the basin is dry. The potted jujube mainly applies the organic fertilizer solution of cake fertilizer and applies it every 7 to 10 days. Jujube tree leaf growth period, flower bud development period and young fruit growth period are the main period of nutrient requirement. At this time, 2 organic fertilizers can be applied, and then 0.3% urea solution is applied to supplement the tree's nutrition to the minerals. demand. Phosphate application should be increased during the fall season, and 0.2% potassium dihydrogen phosphate solution should be applied twice. 4. Flower and fruit management (1) Preserving fruits and girdling during flowering can increase fruit setting rate. When the jujube blossoms reach 30% to 40%, girdling is performed at the base of the jujube, and the width is generally 0.2 cm. The jujube trees are happy and the jujube trees are placed in a place with good ventilation and light transmission to facilitate fruit setting. Spraying 10 ppm to 15 ppm gibberellin plus 0.3% urea during flowering can increase fruit setting. During the expansion of jujube, two 0.3% potassium dihydrogen phosphate solutions were sprayed to increase the fruit setting rate. When the jujube head of non-backbone twigs appears about 3 days old, picking the heart of the jujube head can also increase the fruit setting rate. (2) Thinning fruit pots jujube fruit when too much fruit or fruit density is not uniform, the thinning of fruit should be carried out, and the poor quality and small fruit should be eliminated. The fruits grown in later stages are not easy to ripen. For example, if there are more fruits in the early stages of flower development, the fruit in the later stages will have dried fruit during the early stages, and later fruit should be removed. 5, trim potted jujube tree shaping can be used to trim the trunk shape. The trunk is 20 to 30 centimeters high. The leader has 5 main branches and he has a primary branch. Potted jujube tree should be trimmed from February to March, sparsely used branches, cross branches, too dense branches and so on. To extend the length of the jujube head, the first secondary branch under the incision shall be cut off, otherwise the main bud will not germinate. The shoots to be used for the result should be cut to the 2 year old part, and the second branch under the cut should not be cut off. 6. Diseases and Insect Pests Diseases and Injuries of potted jujube mainly include date moth, turtle wax scale insect, jujube armyworm, date borer, jujube disease and so on. Jujube moth, jujube mythimnae, and jujube can be used to control larvae with 3,000-fold enemy kill liquid spray. Turtle wax scale insects can be treated in the dormant period of jujube tree, or in the nymph stage with 50% dichlorvos 800 times spray control. Using predators such as ladybugs and cockroaches to prey on pests is also effective. Jujube disease jujube potted jujube should be pulled out of the basin in time. 7, change pots or change nutrient soil potted jujube grow in pots 2 to 3 years later to change some of the pots. In the dormant period, the jujube tree is pulled out from the pot, the root pad and a small amount of the root system are removed, and the soil is put into the pot and nutritious soil is added. Do not change pots of potted jujube, planting about 2 years should also change nutrient soil, in order to facilitate the growth of jujube. After removing the jujube, remove the root pad and a small amount of root system, add the nutrient soil, put the original jujube tree with soil into the basin, add enough nutrient soil and pour enough water. 8, winter will be potted jujube trees into the indoor or shed can safely winter, winter is not too cold areas can also be exposed winter. Cover some grass on the basin, check whether the basin soil is dry before the cold current comes. If the basin soil is dry, it should be poured once to make sure that the potted jujube tree is safe for winter. 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