In recent years, with the sudden emergence of the seedling flower industry, a new trend has emerged in the seedling sales market, and large-size nursery stocks are in short supply. To this end, the author discusses the breeding prospects and cultivation methods of large-scale seedlings as follows: First, the characteristics of large-scale seedlings. It takes about 3 to 4 years or more for the seedlings of large-scale seedlings. Generally, the diameter of 5 cm in diameter is the standard. Due to the long management time of large-sized seedlings in the nursery, they have created good conditions for their growth. After forming, they are straight and straight, and the canopy is basically shaped. The planting of large-scale nursery stocks is effective, the nursery stocks are neat and uniform, and they have strong anti-destructive ability, which can exert the best greening function and beautify the environmental effects. With the acceleration of urban construction in China, large-sized seedlings will be favored. Second, the economic benefits of large-scale seedlings. Large-sized nursery stocks are not only popular, but also have considerable economic benefits. In the same species, the price of nursery seedlings was low and sales were difficult. The same nursery, the same species, the cumulative value of the annual output value, the benefits of large-scale seedlings than the outgoing nursery stock. Such as weeping willow 1 acres of land can be produced around 2000 seedlings that year, according to the market price of 1 yuan per tree, per mu output value of 2,000 yuan; if reserved for 1200 trees per acre for large seedlings, 4 years breast diameter can reach 7 centimeters, according to The market price is calculated at 15 yuan per tree, and the output value per mu can reach 18,000 yuan, and the annual output value is 4,500 yuan. In addition, seedlings of large-sized seedlings were input at one time, and seedlings were still required to be used each year for seedlings. The increase in the economic efficiency of large-scale seedlings is determined by the new characteristics and trends of the nursery stock market. Planting households spend more money to buy big seedlings than to spend less to buy seedlings for cultivation. Its purpose is to make the planting effect immediate. Third, the cultivation principle of large-scale seedlings. Large-scale seedlings should be prepared from the beginning of nursery, nursery should be closely planted, the general spacing is 90 cm, spacing is 30 cm. After the overall frame of nursery is formed, the seedlings can reach a height of about 1 meter in mid-June, and they will be eliminated by the method of “protecting the line, protecting the quality of the line, maintaining the size of the line, and keeping the strength to the strength of weaknessâ€. It is cultivated as large size seedlings. After fixing the seedlings, remove the weeds and add autumn fertilizer. At the same time, pay attention to cultivating dried shoots. Seedlings go into lignification and are trimmed. Gastroenteritis Shandong Unovet Pharmaceutical Co.,Ltd. , https://www.unovetcn.com
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