From November to March of each year, it is the dormant period of winter jujube. At this time, only sufficient organic and inorganic nutrients for winter jujube can ensure the high yield of the next year.
I. Fertilizer and water management 1. Moisturizing and loosening soil in a timely manner. Moisturizing and loosening soil in a timely manner to maintain suitable soil moisture in jujube garden soil is one of the effective ways to improve the yield and quality of winter jujube. Generally, jujube orchards must be demarcated in time to increase the ability of the root system to absorb mineral nutrients in water and maximize the quality of winter jujube. For plots with extremely poor soil moisture in jujube gardens, it is still necessary to irrigate small water in time. After the fruit is harvested, the winter jujube tree is weak, and nutrients should be added in time. Applying fertilizer is the basis to ensure a good harvest next year.
2. Prevention and control of diseases and insects, after reducing the number of overwintering insects, picking up diseased fruits and dead fruit on the ground, cleaning dead leaves, cutting away dead branches of diseases and insects, and intensively burning or burying them. Around mid-November, spray the whole tree with 3 ~ 5 Baumedus sulfur mixture once to kill some of the wintering red spiders and pathogenic bacteria. Before the soil is frozen, the trunk and main branches are whitened with a whitening agent, which can prevent frost and kill some wintering pests.
3. Fertilization management of soil Strengthen the management of soil fertilizer and cover the mulch after planting, leaving enough forest belts, rational intercropping, timely cultivating and weeding, and loosening soil to protect the soil. According to the principles of applying bottom fertilizer, staging topdressing, and spraying fertilizer regularly, the base fertilizer should stop growing at the new shoots. After the fruit is harvested, it is better to apply it from mid to late September to mid November. After picking the fruit, re-apply the base fertilizer, and strengthen the soil strength of the jujube orchard by applying the base fertilizer to ensure that the next year's harvest of winter jujube should be applied as soon as possible after the harvest. The base fertilizer should be based on organic fertilizers. It is phosphate fertilizer. Adopt the high-efficiency fertilization scheme recommended by the Western Fruit Friends League to ensure high quality and high yield and stable yield, and strive for greater benefits. The jujube garden is relatively barren, and it should be supplemented with an appropriate amount of available nitrogen fertilizer. Combined with fertilization, ploughing the soil of the jujube garden, and picking out overwintering insects.
4. Timely irrigation to maintain soil moisture conditions Winter jujube orchards with irrigation conditions can be timely irrigated according to soil moisture conditions after fertilization; timely irrigation can be carried out after irrigation to ensure safe wintering. If fertilization is better when fertilizing, you can also temporarily not water it, just put the frozen water once before the ground is frozen.
2. Pay attention to pruning young or unfruitful young trees, which should be pruned year by year according to the expected tree shape. The large trees that are bearing fruit are mainly maintained or perfected by slow release, thinning, short cutting, shrinking and other methods to achieve even distribution of bone backbone branches and obvious layers, that is, the top and bottom do not overlap, and the left and right do not cross. , Ventilation and light transmission is sufficient. The wound caused by trimming is closed with a "callus anticorrosive film" to promote early healing of the wound.
Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone
Round type sugical lamp is the most matured LED lamp in all LED series, it has producted for many years and exported to many countries, just like USA, UK, India, Italy, Thailand and other countries in the workd, almost zera maintainance rate, customers all give good feedback. the surgical lamp has the function of Clear lighting field; Outstanding color rendering index; Convenient removable sterilize handle; Control panel can choose touch screen control panel or normal control panel; it also has excellent color temperature adjustable technology; the operating lamp also can add HD camera system which is medical grade; for this OT lamp, it has ceiling type, wall type and mobile type; ceiling type can choose single dome, double dome or add camera system;
LED Surgery Lamp,LED Operating Lamp,LED Operating Light,LED Surgical Lamp
Shandong Lewin Medical Equipment Co., Ltd. , https://www.lewinmed.com