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First, the climate characteristics of the hilly plains The early spring temperatures in the hilly areas rise rapidly, the temperature is higher than in the mountainous areas, the sprout, vines, dendrite growth, flower bud differentiation, budding, flowering results and fruit development of the Mangosteen are earlier than in the mountainous areas, fertilization and management measures To advance earlier, it can adapt to the long-lasting needs of the Luo Hanguo, promote early flowering, early results and early maturity. In spring and summer, rainfall is moderate, light is moderate, air humidity is high, and temperature difference between day and night is relatively large, which is extremely beneficial to the growth and development of Luo Han Guo. Since September, the rainfall has decreased significantly. Most hilly orchards are vulnerable to autumn drought, affecting fruit quality and yield. In order to make full use of the favourable temperature conditions from March to August, to promote the normal development of Luo Han Guo, so that the fruit matures from the end of August to the beginning of September, you can avoid the threat of Luo Hanguo autumn drought. Cultivation management must highlight an "early" word. When the temperature is high, light is strong, and the air is dry, the adhesion of the stigma of the pistil is poor, and the rate of artificial pollination is low. From mid-April to mid-June, there is more rain, high air humidity, strong adhesion of the stigma of the pistil, and high rate of pollination. Therefore, it is imperative that early application of flower fertilization promotes early flowering of Mangosteen.
Second, the cultivation techniques
1. The planting technology is selected from the "spring equinox" to "clear and bright" period for planting on sunny or cloudy days. For the former strains, 4-5 kilograms of beef cattle pen and 50 to 100 grams of organic compound fertilizers are used as base fertilizers. Before the root activity in early March, a sunny day was selected to cover the tubers on the tubers (seed potatoes) in winter, exposing 30%-50% of the whole potato to facilitate germination. At the time of reclamation, 4-5 kilograms of fermented pig cattle pen and 50-100 grams of organic compound fertilizer were used as base fertilizer. When the seedlings have 3-4 leaves, 50-100 grams of organic compound fertilizer can be applied.
2. After picking the shoots and cultivating the "clear and bright," the temperature is stable above 15°C. When the sprouts are 3-10 cm long, the excess sprouts are removed and two thick shoots are left for each tuber to set the first time. When the seedlings grow 15-20 centimeters long, a second vine is to be planted, leaving only one stout shoot per locust as the main vine to benefit the vine in the morning shed.
3, promote vine spread to promote the rapid growth of the main vine, cultivating robust side vines, this period in addition to topdressing manure excrement twice, but also outside the root dressing, that is, when the main vine grows 4-5 leaves, The use of Luo Han Guo nutrients 10 g water 10-15 kg foliar spray, sprayed once every 3-5 days, even spray 3-4 times, can promote the rapid growth of the main vines, put the morning shed and axillary side vine. For the weaker main vine, the sprayer should spray a few more seconds at the root to spray the seed.
4, picking vines to pick heart, prompting early flowering results when the main vine grows to 16.5 centimeters from the shed when the topping, can inhibit the main vine growth, promote the development of the first and second side vines, promote the main, side vines in mid-April There are 50 leaves and flowering results. Mangosteen growth and flowering results at the same time, so side vines and flowers and fruits will compete for nutrients, such as any side vine growth, will consume large amounts of nutrients leading to the loss of flowers and fruits. Therefore, the side vines must be picked up. 1 Lajiang fruit: The first-level result is that the side buds are concentrated in 6-25 knots and can be picked up at 20-25 knots; the second-order results are side-graps that are topping at 25-30 knots; the stout nutrients should be in 5 -Take heart at -10 knots. 2 Peel the fruit: The first-class result side buds are concentrated in the 5-30 section; the second-stage result side vine is mainly born in the 4-20 section, therefore, the first and second results side vines in the 25-30 section to pick the heart, Other nutrients are picked up at 5 knots. 3 Red Fructus: Grade 4 side vine fruit, buds concentrated in the 4-20 section; strictly control the growth of the first, second and third side vines and stout nutrient vines, should pick up the heart at the 5-10 section.
Hilly flatland mangosteen planting technology
Since the Luohanuo was transplanted from the high mountains to the hilly plains, due to the changes in the site conditions and the microclimate, the growth period of Luohanguo was earlier than that of the mountains. Earlier growth period requires management measures to be advanced accordingly, in order to meet the requirements of the early growth of the Mangosteen on fertilizer and water, and to promote robust plant growth and early flowering results.