Management and Benefit Analysis of Fast-growing and High-yield Fleas
December 08 22:04:54, 2018
Management and Benefit Analysis of Fast-growing and High-yield Pods Fir tree is a high-quality material for the pulp and paper industry. Medium diameter wood can produce particle board, and large-diameter wood can be used as high-quality wood furniture. Creating fast-growing and high-yielding oak forests is a good way for the southern mountainous areas to get rid of poverty and become rich. To create a short-rotation forest, to achieve the purpose of rapid growth and high yield, it is necessary to implement technical measures such as suitable trees, strong seedlings, reasonable fertilization, and fine tending, among which seedlings and rational fertilization are the key to safeguarding fast-growing and high-yield crops. Thailand's Shunhecheng invested in the construction of fast-growing and high-yield oak forests in Shanwei City. Currently, it has afforested 8,000 hectares. Due to the implementation of the “high-tech, high-input, high-yield†business model, its forests are growing well. The six-year-old Yulin’s average tree is as high as 17.5. Meters with an average breast diameter of 16.5 centimeters and a standing timber accumulation of 12 cubic meters per mu have a net income of over 1,100 yuan per mu, which has achieved good economic benefits. Shunhecheng’s afforestation technology measures are unique and worth learning from. Breeding good seed and strong seedlings is the primary factor that guarantees fast growing and high yield. After years of trial planting, Shunhecheng Company has selected three varieties of Eucalyptus urophylla U6, Eucalyptus urophylla E3 and Dongmen DH-33-27 as heading cultivars. Their common features are high yield, strong resistance, and tolerance to barrenness. The progenies of sexual reproduction of eucalyptus are extremely variable and it is difficult to maintain the superior traits of the original species. The current production mainly adopts vegetative propagation and breeding to maintain the super-parent advantage of hybrid eucalyptus. Shunhecheng Company implemented factoryized nursery, established greenhouse and automatic sprinkler irrigation system, and effectively controlled light, temperature and humidity. Seedling process: tissue culture → cutting plot → cutting seedlings. Nutrient cups and nutrient soils are the carriers of seedlings. Choosing the right nutrient cup and nutrient soil can improve the survival rate of cuttings and the survival rate of afforestation. 1. Nutrition Cup The cup is a conical tube with a diameter of 4.5 cm and a height of 10 cm. There is a gap underneath and it is inserted into a net-like rigid plastic frame with a height of 20 cm and a length of 4040 cm. 36 cups can be placed in each plate. The whole process of management can be moved, and the seedlings can be taken out of the hard plastic cups and can be recycled for reuse. 2. Nutrient Soil The nutrient soil must have good water retention and air permeability, and be suitable for the growth of cuttings and seedlings, and it should be light and can keep the seedlings from being damaged during the entire handling process of removing the cup from the garden and up the mountain. Nutritional soil composition ratio: Yellow mud soil: chaff: chaff gray = 1: 1:1. Use a blender to break and mix and sieve. The preparation of nutritious soil should be based on actual conditions in various regions, and continuous improvement in practice. Afforestation in Land Preparation I. Selection of Reforestation Sites Construction of Fast-growing and High-yield Forests Forests should be selected at altitudes up to 250 meters below sea level, slopes well below 25 degrees, well-drained platforms, low hills, and gentle slopes should be avoided as much as possible in the wind zone. typhoon. Second, the opening of the soil preparation point 1, the first plough to open dense forest highway network, improve the construction of mechanization. In spite of the large initial investment, the unimpeded forest road can greatly increase the efficiency of transporting fertilizers, cutting and transportation, and lower the total investment cost. For the slopes less than 15 degrees, it is advisable to plough the land on the platform and gentle slopes. For slopes with a slope greater than 15 degrees, the cracks or burrows along the contour line should be used. 2. Planting trails should adopt a diameter of 22 meters for cultivating small trails, and 23 meters or 1.54 meters for medium trails. Row spacing should be selected as far north-south as possible, and full use of light to promote photosynthesis. Open hole specification is 454,540 cm. 3, Shiji Fei organic fertilizer applied per hole (decomposed chicken manure, etc.) 2500 g + phosphate 500 g + compound 150 g. Third, fertility cultivating cultivation of fast-growing high-yield eucalyptus forest Only sufficient quantities of reasonable fertilization can ensure the rapid accumulation of dry matter in the forest nutrients needs in order to achieve the purpose of high yield. The growth process of fast-growing oak forests is divided into three stages, and fertilization in different stages should be emphasized. 1. The first stage (the first year) is dominated by long branches and developing roots. Nitrogen and phosphorus are the main fertilizers, especially nitrogen. On the day of cultivation, 15 grams of urea was applied around the periphery of the nutrition cup. Three months later, 50 grams of urea and 100 grams of compound fertilizer were applied. Under the canopy, open a 15 cm deep hole to fertilize the soil. Weeding before fertilizing. 2, the second phase (second year) This period is the physiological transformation of the growth of dry wood, phosphorus should be the main fertilizer, to avoid excessive nitrogen, resulting in leggy leaves. In the second spring, 50 grams of urea and 100 grams of compound fertilizer were applied, and 100 grams of compound fertilizer was applied in the fall. 3, the third phase (the third year) This period is the peak season of dry wood. During this period, the biomass accumulation of dry materials is the fastest, and fertilizer should be applied in large quantities, mainly phosphorus and potassium, to extend the peak period of dry wood growth to achieve high yield. For this reason, the amount of fertilizer should be increased in the third year, 200 grams of compound fertilizer in spring and 200 grams of compound fertilizer in autumn. Benefit Analysis According to local conditions, the cost and benefits of planting eucalyptus are as follows (This data is for reference only): 1. Full-grown tillage: 100 yuan/mu; 2. Per planting: 1 yuan/hole 110/mu=110 yuan / Mu; 3, seedlings: 0.25 yuan / strain 110 strains / acre = 27.5 yuan / acre; 4, fertilizer: 2 yuan / strain 110 strains / acre = 220 yuan / acre; 5, fertilizer tending: 5.5 yuan / mu times 6 times = 33 yuan/mu; 6. Production value: 300 yuan/cubic meter 8 cubic meters/mu = 2400 yuan/mu (with 6-year-old oak forest output 8 cubic meters/mu); 7, Harvesting transportation fee: 50 Yuan/cubic meter 8 cubic meters/mu=400 yuan/mu; 8, taxes and fees: 2400 yuan/mu 3%=72 yuan/mu; 9. Mountain rent: 40 yuan/year mu 6 years=240 yuan/mu ( A rotation period); 10, net income: 2400 yuan/mu -1202.5 yuan/mu = 1197.5 yuan/mu.