First, the time schedule and production process:
(a) Preparation period: The end of the first year from the end of July to the beginning of September.
1. Selection of nursery land: Choose irrigation water sources and have good drainage. In recent years, the farmland has not been propagated seedlings.
2, site preparation bed: seedbed height 30cm, width 100cm, length according to plots, generally not more than 25m.
3, laying yellow soil: Before cuttings, in the seedbed no gravel yellow soil, thickness 4cm.
4. Prepare shade nets with a width of 150cm, agricultural mulch, and scaffolding materials.
(II) Cutting Period: Mid-September, Mid-September
1, cuttings selection: the use of healthy and healthy clones of tea, annual lignification branches, so that with the mining plug.
2. Cutting: Using single leaf cuttings, cutting length 8cm, cutting depth 3cm, cutting density 450/m2, ie 180,000/mu. The watering of the seedlings was done while the edge of the seedlings was being sprinkled to keep the seedbeds moist, and immediately the “bow†shed was used, covered with a shade net.
(3) Seedling management: mid-September in the first year and end of March in the third year.
1. The first phase (mid-September, mid-September to the end of November): Mainly sprinkle the water to keep the humidity of the seedbed, and spray thiophanate and other fungicides every 5 to 7 days.
2. The second phase (early December of the first year—the end of March of the second year): Cover the agricultural film on the shade net to make moisturizing and heat preservation of the seedbed.
3, the third phase (the first two years of April - the end of June): removal of agricultural film, continue to do seedbed moisturizing, sterilization work, starting in late May with 0.15% urea top dressing, once every 10 days.
4, the fourth phase (the first two years of July-September end): The main seedbed moisturizing and anti-high temperature work, according to the growth of seedlings topdressing appropriate nitrogen fertilizer, according to the degree of lignification seedlings, timely removal of the shade net.
5, the fifth phase (the first two years of the year - the end of the third year of March): This phase is the nursery stock period, according to the needs of afforestation units, timely nursery seedlings out of the work.
Second, the technical points:
1. Prior to seedling cutting, the disinfection work of the nursery should be done. The seedbed can be sprayed with 50% wettable thiophanase powder 1000 times to ensure that the seedbed is not pathogenic before cutting.
2. When cutting seedlings, use ABT1 rooting powder 100ppm leaching strips for 3-5 hours to shorten rooting time and increase survival rate.
3. Water management at the seedling stage is the key to ensuring the survival of the tea seedlings. To control the humidity of the seedbed, it is easy to cause the invasion of the bacteria by over-wetting; over-drying is not conducive to hair rooting and affects the survival rate.
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