1. Choose land, fertilize, and make wolfberry. Nursery land should choose loose soil and fertile sandy soil land blocks, require drainage and irrigation convenience, should not choose the use of clay soil. It is best to choose an insect-proof isolation net room that has been soil-sterilized. After the nursery is selected, thoroughly remove the remaining branches, dead leaves and weeds, and then fully plow. The ploughing operation should be carefully combined with ploughing to remove the roots of underground roots, especially the roots of perennial weeds, with a plough depth of 20-25 cm and a final levelling.
Fuping basal fertilizer, using the whole fertilization method. Apply 4000-5000 kg of organic fertilizer per acre and 30-40 kg of NPK fertilizer. After fertilization, one more ploughing is performed to allow the fertilizer to mix well with the topsoil.
The strawberry nursery should be planted with pods, which are generally 1.0-1.2 meters wide and about 25 centimeters long. Arid areas should be made flat, and rainy areas should be made of stilts, about 15 cm high.
2. Seedling selection. The first step in breeding seedlings is to obtain more robust seedlings. Therefore, seedlings should be selected for tissue culture of virus-free seedlings. Because the virus-free seedlings restored the original variety, the varieties were pure, the growth was strong, and the stems were numerous and strong.
3. Colonization of seedlings. For varieties with high propagation coefficient, each row is planted with a row spacing of 80 cm; varieties with a lower propagation coefficient are planted with two rows per row with a spacing of 30 cm and a spacing of 80 cm. When planting, should be determined according to the spacing of the planting shaved pit, apply fixed root fertilizer, fixed root fertilizer dosage of 1-2 grams of urea per hole, and then planted. When planting, the roots of the plants should be allowed to stretch naturally, and the degree of earthing should not be buried or rooted after the flattening.
After the planting, it should be irrigated in time and carefully checked. For the seedlings that are too deep or too light, timely adjustments are made and then the shade net is put on. In case of high-temperature weather planting, it is best to cover the straw before and after noon. If seedlings are found to have wilting at noon, they should be watered sooner or later. After all the seedlings have survived, loosen the soil 1 times to eliminate soil compaction caused by watering. Carbendazim or thiophanate-methyl can be sprayed to eliminate pathogens above and below ground.
4. Nursery management. After the seedlings grow slowly, if the leaf color is lighter and the petioles are smaller, topdressing should be carried out. If topdressing fertilizer is used, the concentration of urea and potassium dihydrogen phosphate should be controlled within 0.3%, and the top dressing interval should be 10-15 days. Due to the fertile soil and large space in the nursery, it is very easy to grow grass. Repeated weeding is repeated several times. Before the emergence of stolons, combine weeding and loose soil to remove old leaves in time. When a large number of stolons occur, they should not be squatted. It is best to remove the weeds by hand.
When the shoots of the seedlings occur, the vines should be introduced in time to press the soil so that the pods will be evenly distributed on the ground and the adventitious roots will occur early. When the number of taro shoots produced has reached the propagation coefficient (30-60 strains), the stem stems are topping, and thereafter the stem stems should also be promptly removed in order to facilitate the growth of the stem shoots and make them more robust so that they can be used in production fields.
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