Mid-autumn crisp jujube is suitable for planting in Zunyi, Guizhou, with wide adaptability and convenient standardized management. Mid-autumn crisp jujube has excellent characteristics such as fertilizer tolerance, waterlogging tolerance, drought tolerance and barren tolerance. At the same time, the variety has strong resistance to pests and diseases, such as jujube rust, anthracnose and peach fruit borer. Therefore, this variety is suitable for planting in red soil, yellow soil, limestone, purple shale and other soil conditions. In the climate of high temperature and high humidity in the south, many varieties introduced from the north (such as Lizao and Dongzao) have poor disease resistance and serious flower and fruit drop, while Mid-Autumn Festival crisp jujube grows well.

One: Mid-Autumn Festival crisp dates

It is a fresh jujube with beautiful appearance, thick meat and small core, crisp and sweet taste.

Crispy jujube is a kind of fresh jujube. Cause and effect are mature around the Mid-Autumn Festival, hence the name Mid-Autumn Crispy Jujube. When the fruit is ripe, it is red or crimson, with thin skin, small core, crisp and sweet meat, and rich in various nutrients necessary for human body. Because of its high vitamin C content, it is called "live vitamin pill", which has the effects of inhibiting aging and resisting cancer.

Second, the main nutritional components of crisp jujube

100g content: (Every100g of crisp jujube is equivalent to1200g of crisp jujube. In addition to rich nutrients, crisp jujube also contains rich bioactive components, such as cAMP, which has a strong destructive and inhibitory effect on cancer cells in human body, dilates blood vessels, increases myocardial contractility and improves myocardial nutrition, so it can prevent cardiovascular diseases.

Three: cultivation and planting

1. It is best to choose a place with convenient transportation, convenient irrigation and drainage, good light and thick soil layer to build a garden, and purple leaf rocks can also be planted.

2. The planting technique is to select 2-year-old strong seedlings with strong growth and no pests and diseases to build the garden, and the seedling thickness is required to be 0.8 cm, and the seedlings should be planted 1 week before germination in spring. Planting requires digging ditches (80 cm× 80 cm), with sufficient fertilizer and water. According to the plant spacing of 2m× 3m, plant 1 10 plants in 667m2, and water 1 time.

3. Fertilizer and water management After the soil is thawed in late autumn or early spring, the area from the trunk of jujube tree 1 m to the periphery of the crown projection of 25 cm should be ploughed to eliminate floating roots, promote root binding, increase soil permeability and eliminate overwintering pests in the soil. Before germination in spring, cover the trees with black plastic film to prevent weeds from breeding and promote the root growth of jujube trees. From the late September of/kloc-0 to the early October of/kloc-0, after the jujube fruits are harvested, 2,000-3,000 kilograms of base fertilizer should be applied every 667 square meters within one or two years after planting, and 4,000-5,000 kilograms of base fertilizer should be applied three years after planting. Topdressing should be carried out before germination, early flowering and fruit expansion, combined with foliar spraying.

4. The tree shape of this variety should be shaped like a free spindle or an open heart. The specific operation method of spindle shape is to select 1 large fruiting branch with a length of about 30 cm from the ground. Generally, there are four or five fruiting branches in the lower layer and two or four in the upper layer of each large fruiting branch group, so that the fruiting branches are not crowded and do not cross the main branches, and the crown falls back after the crown growth meets the requirements. Cross branches, upright branches, etc. Branches that are of no use value between big fruit branches should be thinned out from the base as soon as possible. Results When the fruiting ability of the branch group decreased, suitable branches could be selected from the base for re-culture. Picking in summer, girdling at flowering stage and spraying gibberellin can all increase the yield.

5. Improve the fruit setting rate. Ring cutting (peeling), coring, spraying water, spraying gibberellin per liter 10 mg ~ 15 mg and releasing bees at flowering stage can all improve the fruit setting rate.

Four: pest control

Spraying the mixture of 4 baume and 6 baume twice before the pests germinate. From May to July, spraying 15 ~ 20 days of bifendazole No.3 plus 1 500 times of bifendazole to control jujube gall midge, jujube budqu, jujube weevil and other pests. Spraying 800 times of 40% carbendazim solution or 25% fenxiuning solution for 2-4 times after August to prevent jujube rust and jujube anthracnose. Pesticides are prohibited before harvest 15 days.