The scavenger trees are bright, they have little shade, they are warm and wet, and they are not cold。
Plug-in option: a seedling or a seedling of a robust herb tree。
Plug-in treatment: after cutting back the scavenger plug, cut it up to about 4-5 cm, leave a leaf in the upper part, and the larger one can go half。
Plug-in time: may-october is a fast-growing period, easy for the year and best for the year。
Plug-in management: plug-in temperature is generally controlled at 15-28°c。
I. Phenomenon growth habits
1. The scavenger tree is radiant, shaded, warm, wet weather, less cold, suitable to grow on sandy soil, more wet, but must be transmutated with care to maintain soil moisture, and water flooding can easily lead to the death of dead roots lacking oxygen, but not to drought, infertile and saline soil。
2. The roots are developed, deep root, resistant to wind, strong budding, resistant to shearing, medium growth rate, large tree shapes like umbrellas, which can shield the shade。
Ii. Plumbing seedlings
1. Box selection
The scavenger tree, which is grown on the basis of a precipitous seedling or scavenger tree, and a branch of the two-year-old live tree 20-60 centimetres from the ground, may have a 70-90 per cent activity rate, and shall be subjected to cycling or softening before the clip is cut。
2. Plugging
(1) when the scavengers are cut back, they are cut by an ear of about 4-5 cm, leaving a leaf in the upper part, which is half larger。
(2) tilts to the top, half the depth of the ear, with a bed with a permeable, permeable heartland of about 5 cm thick on the bed, 90 per cent shade on the bed, followed by general management, with one shower per day at 11-12 hours。
3 plug-in time
(1) plumbing is best performed at a temperature of 24-26°c and 80% humidity。
(2) in terms of growth and development, february-april is the beginning and replacement period of the scavengers, the new leaf is young and difficult to choose and should not be inserted。
(3) the months of 5-october are a period of rapid new growth, with easy access to the current year's branches, the most suitable of which is the low temperature of november-december。
4. Plug-in management
(1) the temperature of the cascading bed during the scavenger period is generally kept at 15-28°c, with relative humidity at 80-90%, with a weekly spraying of 0. 2% or 3% bordeaux, contributing to the healing of roots and the prevention of pests。
(2) the pre-plugging of the nitro film begins when the healing tissue is produced. Depending on the season, the length of bed breaks is 10-15 days, with two-3 times。
(3) when the bed is turned over, an incision of up to 3-4 centimetres is found, i. E., in the nutritional basket。
Iii. Cedar tree seedlings
Seed collection
(1) the scavenger fruit, when it matures itself, is pecked by birds, is harvested every october to december from ripe seeds, is stored in mixed sands, and seeded in early march。
(2) 7200-8000 seeds per kilogram, germinate 70-80%, sowing 10-15 kg per acre。
2. Fertilizing the whole area
(1) the first tillage takes place early in the winter, the second tillage takes place before planting, and the base weight is applied。
(2) the base fat is generally used to composure 1500-2000 kg or 50 kg of carbonamine per acre, 50 kg of phosphorus fat, 150 kg of vegetable cake, and is then constructed into a high bed of 35-50 cm high and 1. 2 m wide。
Three, seed seed
(1) pre-plant seedlings are required, with 50 °c warm water soaked, and 50 °c water soaked three to four times more when cooled, with seeds growing 10 to 15 days in advance。
(2) the spread distance is about 20 cm, with a seeding capacity of 10-15 kg per acre, which is covered with straw or membrane, so as to keep the seedbed humid and sowing。
4. Care management
(1) the seedlings shall immediately be stripped of their straws and membranes, so that the seedlings may begin to seed, which may be established at a height of about 10 cm and leave around 20,000 seedlings per acre。
(2) after july, the management of fat water will be strengthened, with frequent pine soil weeding and the pursuit of fertilizers and irrigation stopped at the end of the autumn. Fertilizers are generally 2-3 times, urea 7-10 pounds for the first and urea 10 kg and phosphorus 7. 5 kg for the last。
5. Deplantation in due course
(1) the transfer time is more appropriate from mid-march to mid-april, with a transplant density of about 1,500 units per acre。
(2) move along and move along with planting and leaving the ground about 10 cm cut the pole, when the bud grows to about 10 centimeters. Set the main pole, cut off the extra bud, and leave a bigger branch。
(3) the winter bed is fertilized by 2,000 kg, so that the size of the tree can be over 3 cm for three years。
