Red heart kiwi planting technology
In the first and middle of April and April, the local temperature is 15 °C, which is a suitable sowing date. Soak the seeds with 47 degrees water, soak them for 24 hours after natural cooling, remove them and mix them with 2 times of wet sand, then put them in a container and bury them in the shade. The temperature was kept at around -3 °C, and the flipping was checked once every 1 week. It takes 40 to 60 days.
2, kiwi seeds are small, so the requirements for soil preparation and sowing quality are strict. Choose sandy loam with loose soil and good drainage. The pH is about 7 and 5000 kg of high-quality organic fertilizer per acre is applied. The soil is disinfected with carbofuran and dikesone before sowing. Then deep-picked into a l-meter-wide seedbed, the bed soil was finely divided, flattened, or ridges with a width of 60 cm, an upper width of 40 cm, and a height of 25 cm.
3. Immerse the water once every 2 days before sowing, and mix the seeds in the fine sand evenly in the seedbed-plant. The amount per square meter is 5-6 grams. Then use the fine fertile soil to cover the seed, just cover it, then cover the surface with a layer of straw. Because the soil is thin, the soil surface is easy to dry. Pay attention to the water spray frequently to keep the soil moist.
4, kiwifruit can be emerged 15 to 20 days after sowing, within 1 week, and gradually remove the straw. After uncovering the grass, the seedlings that have just been unearthed are very crisp and can't be directly exposed to the sun. Be sure to cover the shed for shading, otherwise it will be sunburned.
5, about 50 days of emergence, the true leaves begin to expand, when growing l ~ 3 leaves when the seedlings, while weeding. When 6 to 8 true leaves are used, the shade can be gradually removed, and the seedlings can be transplanted to the nursery at a line spacing of 15 cm and 30 cm. Water is applied once a day for 2 days before seedlings to remove soil and reduce root damage. Transplanting is done by seedlings, transplanting, and watering.
6, the whole seedling period should do a good job of loose soil, weeding, irrigation, etc. When the seedling grows to 30 ~ 40 cm high, it is necessary to pick the heart in time, and pay attention to remove the sprout from the base, when the seedling thickness reaches 0.6 cm, Can be grafted. When grafting, pay attention to the identification of the variety and cut the scion on a good single plant. Kiwifruit can be grafted all year round, and spring is carried out about 20 days before the rootstock sprouts, usually in April. Summer should be carried out after the semi-lignification of the scion in June. Autumn is in early August. In the spring, the seedlings cultivated in the spring were grafted from late August to September of the same year. Before the sap flow in the next year, the anvil was cut, and the grafting was mostly carried out by a single bud.
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