First, build a sand bed
Choose a local sand bed with a sunny leeward, high topography and water power supply, about 10 cm thick, and the sand bed area should be determined according to demand. However, sand beds need to be drained and ventilated. And install active intermittent spray equipment, if there is a power outage, additional screening equipment should be added to maintain the safety of cuttings.
Second, picking and cutting
From June to September, picking and cutting is carried out. The root shoots, three-year-old young seedlings or young grafted seedlings were selected and the semi-lignified lateral branches were cut for cuttings. Too tender shoots should be cut off or topped before picking, picking the top buds of the shoots and increasing the degree of lignification of the shoots in order to enhance the rooting ability of the cuttings.
Pruning should be carried out in the morning, dusk or rainy days, and the branches should be protected from damage. Cut 10 to 12 cm long cuttings, save 2 compound leaves, 4 to 6 leaflets. The cut cuttings were sprayed and sterilized, and then soaked in the base for 2 to 4 hours at a concentration of 100 mg/kg of ABT No. 1 powdered solution. Plant spacing is 4 cm 6 cm, cutting depth of about 3 cm. Pay attention to spray moisturizing while cutting.
Third, seedbed management
Using active intermittent spray technology, the seedbed temperature is controlled at about 26°C, and the maximum is not to exceed 30°C, and the high humidity is maintained at more than 90%. After 10 days of cutting, the root primordium is formed, and after 20 days, the root system can reach about 5 cm. During the period of rooting management, spray 800 times of chlorothalonil fungicide once every 7 days or so to prevent the onset of rot disease.
After rooting, leaves should be topdressed and sprayed every 3 to 5 days. For example, 0.2% urea and potassium dihydrogen phosphate solution can be sprayed, and 10 mg/kg rooting powder solution can be used to spray the leaves to improve rooting. rate. Rooting seedlings cuttings in September should be kept in bed for the winter, and through the addition of arch sheds and other insulation measures to maintain the safety of the root system of wheat seedlings, free from frost damage, and then transplanted to the nursery for further training in the following year. Http://Content/cb81f532-fdf5-4e44-931d-84ec52a0b6b6?cType=2
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