Toon planting techniques are: temperature regulation, humidity regulation, light regulation, topping to promote branching, water and fertilizer management.
1, temperature regulation
It has been observed that the shed temperature at about 25 ℃, 24 hours shoots can be 3-4 cm; and 15 ℃, only 1 cm; shed temperature more than 35 ℃, affecting the coloring of the toon buds and quality. 10-15 days after buckling the film is the period of seedling slowing down, should focus on raising the temperature, daytime greenhouse temperature can be around 30 ℃.
After more than 1 month of natural light and temperature accumulation, after the buds sprout, the daytime temperature is controlled at 25-30℃, and the nighttime temperature is controlled at 13-17℃, and the temperature during the picking of buds is 18-25℃. Depending on the situation, add grass thatch, paper quilt to increase the temperature or heat preservation.
2, humidity regulation
The seedlings planted in the greenhouse, the root system has poor water absorption capacity, so it is desirable to maintain a higher soil moisture and air humidity at the beginning of the planting should be watered thoroughly after planting, and later on, as appropriate, watering small water.
Relative humidity in the air to maintain more than 85%, sunny days, but also to the seedlings spray water to prevent water loss and drying. After sprouting, the relative humidity of the air to 70% is appropriate, humidity is too large, not only delayed germination, and the aroma is greatly reduced, it should be released in time to drain the humidity.
3, light regulation
Tsubaki likes light, should try to use non-drip film, daytime in time to open the straw thatch, paper was, but also often sweep the film debris to increase light, if the light is too strong, can be appropriate to cover the grass shading.
4, hit the top to promote branching
In the picking of the second crop of toon, the top will be removed at the same time to set the dry (from the ground at 40 cm to hit the top). After fixing the trunk, spray 15% polyadiazole solution at a concentration of 200-500ppm to control apical dominance and promote rapid growth of branches to achieve dwarfing cultivation. Thereafter, according to the development of the tree, top and fork in time to ensure that the canopy is more branched and produce more tsubaki buds to achieve high yield and quality.
5, water and fertilizer management
Tsubaki is a fast-growing woody vegetable, water demand is not large, fertilizer to potash demand is higher, per 300 square meters of greenhouse, the bottom fertilizer needs to be fully rotted high quality farmyard manure 2500 kg or so, grass ash 75-150 kg or potassium phosphate 3 -6 kilograms, 3-6 kilograms of diammonium carbonate. After each picking, according to the ground strength, toon growth and leaf color, appropriate amount of fertilizer, watering.
Toon's growing environment:
Toon likes warmth, suitable for cultivation in areas with an average temperature of 8-10 ℃, and cold resistance increases with the age of the seedling tree. With seed direct seedling in a 10 ℃ or so may be frozen. Toon is light-loving, more tolerant of moisture, suitable for growing in the fertile and moist soil around the river and mansion, generally good for sandy loam. Suitable soil pH is pH5.5-8.0.
Native to central and southern China. It is cultivated from southern Liaoning in the northeast, from Gansu in the west, from southern Inner Mongolia in the north, from Guangdong to Guangxi in the south, and from Yunnan in the southwest. In particular, Shandong, Henan and Hebei are the most cultivated.
Henan Xinyang area has a large area of artificial forest. Shaanxi Qinling and Gansu Xiaolongshan have natural distribution. Vertical distribution in the mountains and plains below 1500m above sea level, up to 1800m above sea level, hardiness zone 6-11.