Daxing apricot is a unique tree species of economic forest in China. It has the characteristics of strong adaptability, early results, long life, and high comprehensive utilization value.
1. Choose high quality seedlings. Selecting high-quality seedlings is the key to the success of the park. High quality large flat apricot seedlings refer to grafted seedlings of “two roots and one stem†or more. The standard seedling height of a first-class seedling is 80-90 cm, the above-ground stem diameter is 0.8 cm or more, the length of the root is 20-25 cm, and the number of lateral roots larger than 5 cm is not less than 5, and there is no disease, and the grafted part is well-healed.
2. Timely standard land preparation. 1 Change the site preparation time. The northwestern region of Liaoning is a severely arid region, with an average annual rainfall of only 465 millimeters. In winter, the sand is large and the precipitation is less than 15 millimeters. According to past practice, more than digging the ground in the fall of last year, after the digging of the site, after a winter wind and sun, the soil excavated has been dried completely, and the pits have also dried up to more than 20 cm, and they will be planted in spring. When the weather is upright and spring, the water is difficult to guarantee. If the irrigation volume is increased, the cost of planting will increase. Second, the more the temperature of the irrigation is, the lower the temperature is, which is not conducive to easing the seedlings. The spring digging pit can overcome the above drawbacks and the survival rate can be achieved. above 95. Therefore, the digging pit should be changed to digging pits in the spring. At a specific time, it should be suitable for about one week before planting.
2 Site preparation standards and technical regulations. The land with a thickness of 1 m or more is excavated with a diameter of 60 cm and a depth of 60 cm. The thin layer of soil is digging a pit with a diameter of 80 cm and a depth of 100 cm. The topsoil and the soil and soil are separated. Each plant applied high-quality farmyard fertilizer 30-50 kg, 1.5 kg of superphosphate, a layer of manure layer of soil, backfill all the topsoil in the pit, when insufficient, use the surrounding topsoil or soil to add, back to fill the edge of solid. In the end, 20 cm below the surface of the garden was used as a planting level, and about 30 kg of water was planted in each plant.
3. Planting time. In Karacha, it is windy and windy in winter, and it is also prone to frost damage. Therefore, spring planting should be preferred. The best time should be in the middle or late April. Prematurely, the temperature is low, the sprout is slow, and it is easy to evaporate; too late due to sprouting of seedling stem buds earlier than the root activity, so the survival rate is low.
4. Treatment of seedlings. Seedlings for long-distance transport should be covered with tarpaulin during transport to prevent seedlings from losing water. Before sowing, the whole plant should be soaked for 24 hours, then cut the root wound, and then soaked with 400 mg/kg rooting powder for 2 to 3 minutes, and soaked with mud before planting.
Anesthesia Medical Co., Ltd. , http://www.sinoanesthesia.com