1, the choice of afforestation In low mountain and hilly plains below 500 meters above sea level, select oiled tea with acidic soil that is sunny, has a slope of 25 or less, is rich in soil and fertile, and has good drainage. 2, site preparation (1) Land preparation 1 belt æ³: horizontal belt by row spacing around the mountain, outside the high and low, bandwidth of 2 meters, with a fixed point on the line spacing digging points, hole specifications: length 50 宽 50 æ·± deep 40 。. 2 points æ³ æ³ æ³ æ³ æ³ æ³ æ³ æ³ æ³ æ³ çŽ¯ 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环? (2) Density: Generally, it requires 107-167 strains per mu, that is, plant spacing of 2.32.7 meters (78 feet) or 22 meters (66 feet). (3) Shi Jifei: After digging, appropriate application of garbage fertilizer, straw, mango, farmyard fertilizer, 0.5 kg of lime per hole, 0.5-1 kg of compound fertilizer, 0.5-1 kg of phosphate fertilizer, and 0.3 kg of potassium fertilizer Nitrogen fertilizer 0.3 kg, and then backfill the table, and then filling the hole filled with a bread-shaped head for use in afforestation. 3, afforestation (1) Selection of seedlings: Fine grafted seedlings are generally selected. Seedling quality requirements are: robust growth, no pests and diseases. The two-year-old seedling height is more than 30 cm, the ground diameter is 0.3 cm or more, the annual seedling height is more than 15 cm, and the ground diameter is 0.15 cm or more. (2) Afforestation season: It is appropriate to moisten the soil from early February to early March. (3) Afforestation methods: planting seedlings and afforestation, one hole and one plant, planting the seedlings, stretching the root system, planting tightly and stepping on the solids, planting a layer of loose soil after planting, and the planting depth is preferably 1-3 cm higher than the seedling root neck. 4, tending management (1) tending After afforestation, the first year to protect the root system to ensure the survival rate, but not to nurture, the second year began tending 1-2 times, the first time in May-June, the second time in August-September, mainly loose soil, weeding To cultivate soil, expand soil, and build forests on acupuncture and soil preparation sites, they can be gradually linked into belts by tending. The belts must be raised at a high altitude and low to open a bamboo section ditch at a certain distance, and fish scale pits can also be built in places with serious soil erosion. (2) Replanting and trimming Missing strains and diseased plants were found to be planted with strong seedlings of the same age, and management was strengthened so that the seedlings for planting and the seedlings of woodland grew in a balanced manner. Pruning, mainly in the form of an integer, mild control of pruning control skills, trunk control is appropriate in the 0.6-0.5 meters, to promote the main side of the technical growth, the formation of a low natural head and happy-shaped crown. (3) Interspecies and fertilization During the young forest, the forest gaps were used to grow crops such as green manures, medicinal herbs, and oil crops, and cultivating fertilization instead of tending, effectively controlling the growth of the hybrid irrigation, and improving the ability of the soil to retain water and fertility. Combining cultivators to fertilize young forests, increase organic matter, and improve soils. Fertilization should be dominated by organic fertilizers, combining quick-acting fertilizers with delayed fertilizers, and combining organic fertilizers with inorganic fertilizers. In winter, 10-20 kilograms of fertilizers are applied to each farmer, and compound fertilizers are added before sprouting of spring shoots. The ratio of nitrogen, squama, and potassium to compound fertilizers is preferably 2:1:1. (4) Pest control The main prevention and control disease of Camellia is anthrax. The prevention and control methods are as follows: First, combine forest management measures to remove the source of the disease. The second is from July to September at the peak of onset, spray 2-3 times with 1% Bordeaux mixture plus 2% tea bran, or spray with 500 times solution of 50% carbendazim with 500 times solution of Tuzet WP. 4-5 times. The main control insects of Camellia were the scale insects, tea leaf weevil and tea seed weevil. Tea-moth adult moths can be trapped by light, and 90% trichlorfon can also be used to inject poison to kill larvae. For tea seed weevil, you can use artificial cull or spray 90% trichlorfon 1000 times spray. The scale insects sprayed with 40% omethoate 1000 times in March-April. RT-PCR Test Reagent Kit Of COVID-19(ORF1ab, N, E)
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High-yielding tea cultivation techniques