I. Soil selection and landscape
The horticultural varieties of pontan come from the long-term natural hybridism of wild seeds and artificially choose to evolve. Wild pyramids have long developed unique genetic patterns, i. E. I. E. Cold fever and irritation, under environmental conditions on the margins of high mountain forests and in the forest gap。
Pyramids should be planted with a backwind, well-drained, deep and fertile sandy border. If the soil is too sticky, it will have to be improved, i. E. Mixed with sand and fully fertilized fertilizer, and then tumbled to 40-50 cm. In the yangtze basin (or areas with higher precipitation) high beds or seedlings on land with a certain slope to prevent the accumulation of roots. Soils are better neutral and micro-acid (ph. 6. 5 ~ 7. 5) and hyper-alphate soils are not suitable for the growth of the field。
Ii. Cultivation season and methods
Despite being a small woody shrub, unlike most woody plants, trees tend to be planted in winter and early spring, while the latter must have the highest rate of activity between early october and late november, with strong growth the following year. After november, the second year of planting became weaker and even died; even if it was alive, it would not be until the third year before normal growth would be restored. Therefore, the selection of the policing season is extremely important。
In planting methods, ancient rouyang farmers have a wealth of experience. According to luoyang, “when you plant a police station, you can't plant it too deep, you can't grow it, you can't grow it, you can't grow it, you can't use it on earth. There are also excavated pits that must be of deep and shallow duration. And the pit shall be wide and flat, and the earth shall be thick and thick, and a small earth shall be laid beneath it, with its upper and lower tip, and it shall be laid on it, and its roots shall be laid down, and its roots shall fall down, and it shall not be bended, and then it shall be covered with the earth。
The roots were cut and the disease cut before planting, and were impregnated for 10-20 minutes with a mixture of 500-700 times methyl isophosphate and methyl tobuzin (polyblycin). And then the whole plant will be raised up slightly, and the roots will be straight, and the earth will be filled with layers. When planted, water is poured so that roots and soil are closely integrated。
Cultivation density depends on the purpose of cultivation. For long-term viewing, the distance is 80 - 120 cm (460 - 1040 acres) and 50 - 60 cm (1850 - 2670 acres) for commercial policing。
Iii. Common reproduction methods
Oystertan breeding methods are divided into sexual reproduction (sowning) and non-sexual reproduction (weeding, division), but are predominantly non-sexual reproduction, especially in the case of marriage and division。
Seeding
The seeding of seeds, due to their high fertility coefficient, is used to cultivate nectar and hybrid species. Drug-based pharmacological pharmacies are mainly grown with seeds。
In a wild state, otan breeds mainly with seeds. After long periods of artificial growth, the male and female prairie of the police have been degraded, transformed into petals, and most of them have lost their capacity to consolidate. As a result, non-sexual reproduction is the main method of reproduction that maintains the quality of the police. It has been observed that the higher the evolution (i. E., the multiple layers of flowers, the rise of buildings) of the odian type, the more serious the degradation of the female and the less likely it is to be solid. Only single, semi-pealed varieties and phoenix seeds can be created。
The pick-up of the pyramid seeds usually took place in late july and early august, with the skin of the nuts changing from white to crab cyanide. The police are kind of old. Many of the characteristics of not enough well-established corn seeds are yet to be fixed, so that they are not only fertilized but also mutagenic and create new varieties. The well-established corn seeds were seeded at a low rate that year, and some of them did not start to bloom until the following year。
After planting the seeds, 15-20 days later, the roots began to take root, and the soil began to sprout in late february and early march of the following year. The cover was removed early, and if the drought rains less than 10-15 days, the water could be poured into thin manure after april. Under this method, seedlings can be planted after two years for marriage or transplantation, and flowers can bloom after 3-5 years. However, unwed seedlings tend to open white single-level flowers, with very few pink multi-layered flowers。
Marriage
Bridging is the best way to breed good breeds of good breeds and keep them in genetic form. It allows for faster and large-scale reproduction and increases the fertility factor of good varieties. To improve the quality and application of policing through marriage。
(1) choice of aluminum
The roots of seedlings are grown from two to three years of phoenium or pharmacide; seeded seedlings of more than one cm of root are grown from a high rate of life to a growing plant。
(2) selection of the semen
It would be useful to have a strong one-year-old twig, strong-hearted and strong-hearted, and to survive when you get married, followed by the previous one, with more nutrients in the sprouts of the sprouts. The ear is usually about 6-10 cm long, with a strong top bud and one or more small sides. I can't put it in any longer。
(3) marriage method
One relay: the owl is usually carried out between early september and early october, with temperatures at 15-28°c. This will be done by:
Aluminum is excavated to clean up the soil, immersed in a mixture of 500 times the methyl isophosphate and tobuzin for 15-20 minutes and then drained dry medicine. Cut off the parts above the budding roots of the logs, split them out of the middle with a sharp blade, and insert them into the slices that have been sharpened, so as to form a layer (i. E., the cortex is aligned with each other); and if the logs and the beaks are not in line, they can only face each other. Tightened from top to bottom and evenly covered with thin mud, the wound must be completely worn. The required depth of planting is appropriate to match the wound with the natural ground. The topsoil was then so high that it was able to bury the ear in its entirety that it was too deep to affect the rate of activity and that it was too shallow to dry. Water is not watered for 20 days in order to avoid the effects of healing; in the first half of march of the following year, the soil is released alive, usually at a rate of over 80 per cent. Once a half month after the drying of mid-march, water is poured twice a month into the water and grass; once a month after late april, urea can be applied, either better or better (about 5 kg per acre); in late june, potassium phosphorus fertilizer (5-7 kg per acre) can be applied; and after two years, it can be sold out of the bed or transferred。
2 breaths: the sprouts of the police are mainly used to change varieties or develop a multi-colored (several) plant. The sprout time is suitable for the first half of may to the second half of june, and the operational time is 10-17, when the cortex is to be separated and adhesive. The sprouts of the aluminum which are grafted to the part of the wood are removed together with the formation of layers, and the whole sprouts of the wood are preserved; in the same way, the sprouts of the aluminum are removed from the sprouts of the aluminum. Keep an eye on the two to match, and then tie them tight with the duct tape. The following month, when it was determined that the sprouts were alive, the tape was removed to remove the sprouts from the log. The leaves on the logs shall be preserved so that the nutrients shall concentrate on sprouts, so that they may grow full of buds in the year to come and bloom in the following year。
Three skins down: the time must be between early september and early october. The wounds heal at 20-25°c. Four to eight cm long, multi-choice buds; one cut each at 2 to 3 cm below the ear, about 3 cm long, about 1 cm short and smooth. A thick side branch is chosen as a birch, with a 2-3cm long interface on its upper smooth side. A slight tilt of the earring is inserted into the bottom of the aluminum cut, so that the two are closely connected to each other; if the coarse is not consistent, the one side will be sufficient. (b) to bind the interface from the top to the bottom with materials such as duct tape, leaching, etc., and then to cover the ears and interfaces with a plastic bag, so as to tighten the plastic bag at 1 cm from the interface to keep it warm and humid, avoid rain infiltration and increase the rate of survival。
3. Division
It's called the root. Pyramids are bushes, most of which are often sprouted and sprouted. There are as many as a dozen branches in a normal flowering series of multi-year police stations, each of which has three to five roots to feed nutrients and moisture, and each of which is interconnected, so that the roots of each branch must be seen in their interconnected relationship, and that its “textures” must be divided according to their natural nature, so that they must not be confused. In luoyang, the majority of the breeding units took place in the first half of october, not later than the end of november. In due course, the police force has a large number of new roots, growing up in the coming years; it is too late, with few and short roots, and it will germinate in the next year with fewer roots, poor capacity to absorb water nutrients, and small strains growing and dying。
Iv. Pest management
Pest and pest control is a key element in ensuring the quality of seedlings and improving the quality of viewing and the value of commodities. Precautionary prevention and integrated management are fundamental principles of pest control。
Among the diseases that affect the police in luoyang are: red spots in the police, asympathia in the police, brown spots in the police, anthrax in the police, rust in the police, disease in the police virus, disease in the police ring, etc. Method of prevention: spraying dominophages, degeneratives, tobuzin, etc. In late march to early april, and poldo acid sprayed with lime every 20 days from may to august。
Insect pests that are harmful to the police are mainly subterranean pests such as root wireworms, platinum, golden needle worms, ground pests such as shellworms and moths。
Methods for combating underground pests: 500 times the methyl phosphorus root is used each year in late march and mid-september, or furan granules are sprayed around the root of the police by opening a ditch around the root of the police, deep in a ditch of 5 cm, and diffuran cover, respectively, to combat underground pests such as dysentery, platinum and gold needles。
Method of preventing on-ground pests: combat with 500-fold methamidophos and 500-fold oxidizing olympic spray or 800-1,000-fold pyrophos spray。
