1, a reasonable close planting, pruning growth method. Generally, only 600-700 trees are planted in each area of ​​the camphor field, and we planted 1200-1400 acres of camphor seedlings. Through proper close planting, we increased the amount of land per unit area and increased 600-700 per acre. The second is the dense pressure of grass, reducing the weeding cost per acre of 45-60 yuan, and improve the utilization of fertilizers; Third, a reasonable broadcast between groups, adjusting the light, four years can increase the length of the plant 50-70 cm, Ensure that the plant type is upright; Fourth, often pruning, reducing the ineffective consumption, promote the growth of the top.
2, secondary transplantation, superficial fertilization method. Seedling breeding to explore the use of secondary transplantation of new technology (ie, seedlings cut primary root transplanted to the second year seedlings for a transplant, more than 5000 acres of seedlings planted. Two-year seedlings cut large roots transplanted into the nursery for sale for the second transplant, acres planted 1400 strains the above). In addition, the surface fertilizer application, thin fertilizer application, and the combination of phosphorus and potash fertilizers promote the long-term cultivation of the fat and roots to form dense root groups, ensuring the sales of seedlings with more mud, transport resistance, and the survival rate of more than 99%. Compared with the conventional seedling survival rate increased by 4%-9%, than the direct seedlings to improve the survival rate of about 15%.
3, to stay large and small, batch marketing law. Our sweet saplings were marketed 1-2 years earlier than normal cultivars, after proper planting and thin fertilization. The annual sales volume is about 340-360 trees per mu. On the one hand, it occupied the taro market early and accelerated the speed of capital circulation. On the other hand, it just adjusted the light between plants and accelerated the speed of plant growth, which won time for the next round of development.
4, clear ditch during the rainy season, dry season irrigation method. The citrons are afraid of drought, but they are more afraid of wetness. Under the condition of long-term accumulation of water, they can easily cause root rot, seedlings and even death. Generally, they show that the leaves do not stretch yellow, the old sticks are dull, and there is no color after three years. Requires that the ditch be protected against water after the rain, and ditches will be diligently drowning in the dry year, and the Chaotian field will be used for fertilization. Generally 3-4 times of fertilization, the amount of fertilizer is 50 kg/mu for compound fertilizer and urea, and the amount of water discharged depends on the weather.
5, disease prevention and pest control. Disease prevention and pest control is generally twice a year. For the first time in early July, the control object was a bag moth. The second time in mid-to-late September, the object of control was a moth. Medication method: General use of 0.5 kg of trichlorfon spray per acre, combined with pruning in winter to remove insects, diseased plants, to ensure normal growth in the coming year.
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