Walnut is one of the four dried fruits. It has rich brain-enriching effects, and walnut is a precious tree that is an excellent material. How do you breed walnuts? Do not know follow the Huinong network Xiaobian to see the walnut breeding technology! Walnut tree is an important woody oil tree species and a precious timber species. Walnuts are both nutritious foods and have great medical benefits. Walnut wood has a hard texture, fine texture, small stretchability, strong impact resistance, no cracking, smooth and beautiful. It is an excellent material and has a wide range of uses. At the same time, the root system of walnut is developed, adaptable, and the soil requirements are not strict. It grows best on sandy loam with deep, moist and well-drained soil. Walnut branches and leaves are dense, and the crown is huge. Planting in the mountains can play a role in greening the barren hills and maintaining soil and water. 1 reproductive technology 1.1 Sowing and breeding 1.1.1 Sowing time. Choose fresh walnuts that are full, no mold, and no pests and diseases. It can be planted in spring and autumn. The autumn is broadcast in the middle and late November, and the spring is broadcast in late March to mid-April. 1.1.2 germination method before sowing. (1) Laminated sand: Walnut seeds need to absorb a certain amount of water, and they can be germinated after a certain period of time under low temperature, ventilation and humid conditions. Therefore, it is necessary to choose a warm, sunny place for sand storage. Before the sand storage, it is soaked in warm water for 2~3 days, and layered with a layer of sand and a layer of walnut. The sand used is usually clean river sand, which is 5 to 10 times the amount of seeds. When sand storage, the temperature and humidity should be controlled. The temperature should be 2 °C ~ 7 °C, the effective minimum temperature is -5 °C, the effective maximum temperature is 17 °C, and the humidity is good to hold the dough without dripping. The number of stratification days is about 60 d. (2) Soaking in cold water: Put the selected seeds into the tank, add water, and use the wooden board to press the floating seeds to make them immerse in the water. After that, stir it once a day in the morning, and change the water once more. After 5~7 days, it can be sown. (3) Cold soaking and sunning: soaking in cold water, changing the water once a day, removing it after 6~7 days, and putting it in the sun for 2 hours. Most of the shells can be cracked and planted. 1.1.3 Seeding methods. Deeply turn the land before planting, the depth is 30~40 cm. 2 000 to 3 000 kg of fermented manure. Sowing is generally carried out on the seedbed. When sown, pay attention to horizontally, so that the suture of the seed is perpendicular to the ground. Thus, the cracking of the walnut shell is conducive to rooting and germination. The line spacing is about 25 cm, the grain distance is 8 cm, and the soil is 5~8 cm. Deep and shallow methods can also be used in arid and dry areas. Birds and beasts with less damage and easy management are suitable for planting seedlings in the fall. After sowing in spring and autumn, before the emergence of seedlings, it is necessary to prevent birds and beasts from harming. Pay attention to the insurance. After emergence, the work of loosening soil, weeding, topdressing, watering and pest control should be strengthened. 1.2 Grafting seedlings. The anvil of grafted walnuts uses walnuts and anvil. Grafting can overcome the shortcomings of walnuts' late results, maintain good quality of walnuts, save seeds, and expand the cultivation range of walnuts. The grafting time is from June to July, and the survival rate is higher by using the large square bud connection method. 2 Afforestation technology 2.1 Afforestation methods. (1) Planting afforestation. The walnut canopy is large, and the plant spacing should take into account the degree of soil fertility, generally 6~7 m, and the soil is thin, which can appropriately reduce the row spacing. Complete land preparation or digging large scales before planting. (2) Live afforestation. Suitable for areas where birds and beasts are less harmful. 2~3 capsules per hole, broadcast live in arid areas, shallow pit method can be used, and soil is stored around the pit. Or dig deep pits and cover thick soil. Before the walnuts sprouted, some of the soil was removed and the walnut sprouts were unearthed. 2.2 Post-forestation management. After 2 to 3 years of afforestation, the “four sides†and the places with good site conditions will be set higher, generally 2.5~4 m. The slopes and the places with poor site conditions are set to be lower, generally 0.7~2 m. After one year of drying, the side branches on the trunk are repaired year by year, and the central branch and the main branch are gradually cut to cultivate the skeleton and enlarge the canopy. 3 tending management After afforestation, in addition to timely weeding and weeding, in areas with good site conditions, crops can be planted in the middle of young forests, but it is required to leave a certain tree plate for the walnuts to prevent damage to the young trees when the land is cultivated. If sporadic planting, it is best to fertilize the walnut trees every year to promote the growth of the saplings. Young forests with no crops on the slopes should be loosened, weeded, and puddles should be built for the young trees. The mountainous areas have a lot of rainfall and high humidity. Some walnut trees grow vigorously, but they do not result in fine management. They use mechanical shaving methods such as root cutting, chopping, and peeling to control growth, promote flower bud differentiation, and increase yield. Walnut trees should not be pruned after defoliation until germination. Otherwise, a large amount of “injury†will occur, causing the tree to weaken and the branches will die when severe. Pruning is best after the harvest of the fruit from late September to early October, and the unsuccessful saplings can be trimmed as early as possible. 4 pest control 4.1 Black spot disease. Spray 50% thiophanate-methyl WP 500-800 times, spray once before flowering, after flowering and in young fruit. 4.2 Walnut limb moth. Adults are sprayed once a day on the tree for 10 to 15 days to kill 2 000 times of liquid. Adults can be sprayed with 50% phoxim emulsion 200~300 times before the soil is unearthed, then shallowly covered or covered with a thin layer of soil. The economic value of walnut is high, the cultivation method is simple, and the current market prospect is good, so the above walnut breeding and cultivation techniques are quickly collected! Help Sleeping Plant Extract,Taraxacum Platycarpum Extract,Polygala Tenuifolia Extract,Gynostemma Pentaphyllum Extract Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.ffsinuoteplant.com
