Five, cutting Conventional cuttings are mainly spring cuttings, usually cutting in the middle and late March, and spring insertion in plastic greenhouses can be early. When cutting, first ditch, then insert the cuttings, expose 1-2 buds on the ground, cover the soil, and the row spacing is 10×30 cm. Spray water after spraying to make the cuttings in close contact with the sand. The humidity is controlled at 85-90%. Sixth, management 1. Shading: Black shading nets or artificial scaffolding can be used to cover the shade. It is better to use plastic greenhouses to keep the nursery to maintain a cool and humid microclimate. 2, water spray: open field cuttings, in addition to the irrigation immediately after the irrigation, the continuous sunny day to spray water in the morning and evening, gradually reduce the number of water spray and water spray after January. 3. Topdressing: After rooting of the cuttings from May to June, foliar spray fertilizer is applied with 0.1% urea and 0.2% potassium dihydrogen phosphate solution, one to two times a month. 4, transplanting: open field cutting, after the deciduous to the second year before the germination directly to the transfer; greenhouse cuttings seedlings must be transplanted after refining. 5. Prevention and control of pests and diseases: The main pests and diseases of Ginkgo biloba cutting seedlings are underground pests, leaf-feeding pests and stem rot. 40% methyl isoflavone 1000 times solution can be used to irrigate the roots of the seedlings in the afternoon. The effect of killing the tigers is over 90%, and it can also treat ticks and golden worms. You can also use 0.2% of carbofuran or 25% of the enemy to kill 2000 times of liquid, and spray it to prevent underground pests; use 2.5% of the enemy to kill 3000 times or 40% omethoate 500 times to control the leaves. Pests; 5% ferrous sulfate solution is sprayed every 20 days from June, and bactericides such as carbendazim and Bordeaux mixture can be sprayed to prevent stem rot. (5, cutting Conventional cuttings are mainly spring cuttings, usually cutting in the middle and late March, and spring insertion in plastic greenhouses can be early. When cutting, first ditch, then insert the cuttings, expose 1-2 buds on the ground, cover the soil, and the row spacing is 10×30 cm. Spray water after spraying to make the cuttings in close contact with the sand. The humidity is controlled at 85-90%. Sixth, management 1. Shading: Black shading nets or artificial scaffolding can be used to cover the shade. It is better to use plastic greenhouses to keep the nursery to maintain a cool and humid microclimate. 2, water spray: open field cuttings, in addition to the irrigation immediately after the irrigation, the continuous sunny day to spray water in the morning and evening, gradually reduce the number of water spray and water spray after January. 3. Topdressing: After rooting of the cuttings from May to June, foliar spray fertilizer is applied with 0.1% urea and 0.2% potassium dihydrogen phosphate solution, one to two times a month. 4, transplanting: open field cutting, after the deciduous to the second year before the germination directly to the transfer; greenhouse cuttings seedlings must be transplanted after refining. 5. Prevention and control of pests and diseases: The main pests and diseases of Ginkgo biloba cutting seedlings are underground pests, leaf-feeding pests and stem rot. 40% methyl isoflavone 1000 times solution can be used to irrigate the roots of the seedlings in the afternoon. The effect of killing the tigers is over 90%, and it can also treat ticks and golden worms. You can also use 0.2% of carbofuran or 25% of the enemy to kill 2000 times of liquid, and spray it to prevent underground pests; use 2.5% of the enemy to kill 3000 times or 40% omethoate 500 times to control the leaves. Pests; 5% ferrous sulfate solution is sprayed every 20 days from June, and bactericides such as carbendazim and Bordeaux mixture can be sprayed to prevent stem rot. Biochemical Incubator is suitable for scientific research institutions, colleges and universities, production units or department laboratories of environmental protection, health and epidemic prevention, drug inspection, agriculture, livestock, aquatic products and other industries as important test equipment. It is a special constant temperature equipment for water analysis and BOD determination, cultivation, preservation, plant cultivation and breeding test of bacteria, mold and microorganism Mould incubator,Intelligent biochemical incubator,Biochemical incubator Zenith Lab (Jiangsu) Co.,Ltd , https://www.zenithlabo.com
Ginkgo biloba hardwood cutting seedling technology
Ginkgo biloba commonly used seedling methods include sowing, cutting, root hoeing and grafting. Ginkgo biloba cutting seedlings can not only save seeds, reduce seedling costs, but also speed up the breeding speed of seedlings and maintain the excellent characteristics of the varieties. Hard-branched cutting is a method of cutting seedlings with more than 1 year old branches with higher degree of lignification. The conventional management after hardwood cutting is much easier than cutting. To do a good job of cutting the seedlings of Ginkgo biloba, it is important to grasp the following links: First, the preparation of the substrate Commonly used substrates for hard branch cutting include river sand, sandy loam, and sand. The sandy loam soil and sandy soil have lower rooting rate and are mostly used for large-area spring cutting. The river sand has high rooting rate and the material is easily obtained, which is widely used in cutting seedlings. Second, the preparation of the insertion The insertion bed is 10-20 meters long and 1-1.2 meters wide. The bed is laid with a layer of fine river sand with a thickness of about 20 cm. It is disinfected with 0.3% potassium permanganate solution one week before insertion, and 5-10 kg per square meter. The liquid medicine is better used in combination with 0.3% formaldehyde solution. After spraying, cover with plastic film. After two days, rinse with water for 2 to 3 times to cut. Third, collecting cuttings After the fall leaves in the late autumn and early winter, the strips are taken. In the spring, the strips are taken one week before the cutting or combined with the pruning, and the branches are required to be free from pests and diseases, strong and full of buds. Generally, 1-3 year old branches on young trees under 20 years old are selected as cuttings. According to the test, the 1-year-old shoots have the highest rooting rate of 93%. The rooting rate is lower, the rooting rate of the twigs is higher than that of the grafted twigs. Fourth, the processing of the cuttings The branches are cut into 15-20 cm long and contain more than 3 full buds. The cut ends are flat at the upper end and oblique at the lower end. Note that the direction of the buds should not be reversed. For every 50 bundles, the lower ends are aligned, soaked in 100 ppm naphthaleneacetic acid solution for 1 hour, and the lower end is immersed 5-7 cm. The branches collected in autumn and winter are bundled into bundles for wintering.
Total 1 | <First <Prev 1 Next> Last> |
share to: