Planting and raising seedlings of Pinus koraiensis?
The method of sowing and raising seedlings of Pinus koraiensis is: spring sowing is suitable. The northeast region is better from mid-April to early June. Sowing or strip sowing is OK. In recent years, the seeds are usually sown with wide strips, with a width of 8 to 10 centimeters. After sowing, the soil is suppressed once and then covered with soil, which is about 2 cm thick. If it can be irrigated in time, no grass can be covered after sowing, and all-light seedlings can be raised. In order to kill weeds, before emergence after sowing, 3 grams of herbicide per square meter, 1 gram of atrazine or 2 grams of promethazine can be sprayed on the bed surface. Do not irrigate within 10 hours after spraying. The sowing rate of Korean pine is 3000 to 3750 kg per hectare.
- Prev
Seed collection time and method of Pinus koraiensis?
The time and method of seed collection of Pinus koraiensis are as follows: the number of fruiting trees in the 80-100-year-old stand of Pinus koraiensis accounts for more than 91%. In order to solve the problem of seed shortage of Pinus koraiensis, clonal seed orchard has been established, but it has not borne a lot of fruit at present. On the other hand, the stand with good site conditions and strong growth in the natural forest should be designated as the mother forest, and the tending management should be strengthened to prepare for seed collection. Korean pine cones mature from September to early October, when the cones change from green to yellowish green, some seed scales crack and enter the early ripening stage. After that, the seed scales gradually turned yellow, and individual cones began to fall off.
- Next
Korean pine
Gymnosperms pinaceae, also known as fruit pine, red fruit pine, korean pine and so on. Evergreen tree, up to 50 meters high, leaves 6~12 cm long, 5 needles a bunch, leaves thick hard, straight, there are 3 resin channels. The cones are 9 - 14 cm long and brown when ripe. The seeds are large wingless, 1.2 - 1.6 cm long, with 13 - 16 cotyledons. Shallow roots, strong cold resistance, soft wood, containing turpentine, strong antiseptic, widely used; needles can extract vitamin C; edible seeds, oil content of 70%, after medicine has Qufeng,
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi