Key points of cultivation of Taoxi extra-early honey pomelo
Taoxi extra early honey pomelo in Xingan County, Jiangxi Province is a single plant found in the process of seed selection of improved sweet pomelo in this county for many years. The variety matures in the middle of September and has the characteristics of early maturity, sweet and crisp taste, few seeds, strong adaptability, disease resistance and frost resistance. The county has set up a project for research and development, with a cultivated area of 500 mu this year.
Characteristic characteristic
Taoxi extra-early honey pomelo crown round-shaped, tree height 3.5 meters-4.5 meters, branches grow sturdy, more erect, root system developed, root depth can reach more than 3 meters, root spread about 5 meters, dense distribution in the soil layer of 20 cm-80 cm. The leaf is a simple compound leaf, long oval, sharp at the front end and medium winged leaf. Compound raceme, average inflorescence 5-flowered, white, calyx 4-lobed-5-lobed. The fruit is short gourd-shaped, the mature fruit color is light green in the early stage, greenish yellow in the middle stage, golden yellow in the later stage, the average single fruit weight is 1200 grams, the maximum can reach 2000 grams, the fruit surface is smooth, the oil cell is fine, slightly convex. Pericarp about 1.5 cm thick, cyst reniform, 10-13 petals. Juice sac white, short lanceolate, more fruit juice, delicate texture, more crisp, sweet flavor, no bitter aftertaste, pure taste and excellent quality. There are an average of 40-50 seeds per fruit, the edible rate is 54.5%, the content of soluble solids is 12.7%, the total sugar content is 10.52%, the acid content is 0.407%, the vitamin C62.2 mg / 100g, the fruit is less resistant to storage, and the quality decreases after 45 days of storage at room temperature.
Key points of cultivation
Proper close planting. Taoxi extra-early honey pomelo branch growth is more erect, appropriate close planting, general flat plant spacing of 4 meters x 5 meters, mountain 3.5 meters x 4.5 meters; reasonable pruning. Young trees are pruned to control the top growth and expand the crown. Summer shearing should use brace, pull branches, increase branch angle and adjust growth orientation, while spring shearing should focus on thinning the upright and vigorous long branches on the top and backbone branches. Shrinking pruning is often used in adult tree pruning to renew weak branches, control top growth, improve crown light conditions and increase fruit yield. Fertilizing and watering. Every year, emphasis is placed on strong fruit fertilizer and fruit picking fertilizer, which is applied from the end of June to early July, accounting for about 40% of the total amount of fertilizer applied in the whole year, mainly nitrogen, phosphorus and potassium fertilizer, combined with organic fertilizer. Fruit harvesting fertilizer must be applied before the middle and late October, mainly organic fertilizer, accounting for 50% of the annual fertilizer application, accounting for 50% of the total amount of fruit fertilizer. Spring fertilizer is applied according to the situation of the tree, whether it is weak or strong. The fruit should be irrigated in time in case of drought during fruit growth and ripening period. Thinning flowers and fruits. The flowering and fruiting rate of Taoxi extra-early honey pomelo is high. In order to improve fruit quality, enhance its commerciality and maintain a reasonable ratio of leaf to fruit, it is necessary to thinning flowers and fruits in time. Pest control. The main diseases and insect pests are canker, resin disease, red spider, scale, leaf moth and longicorn beetle. The main control methods should be to enhance the tree potential, improve resistance, improve tree ventilation and other production measures, combined with timely spraying control.
TAG: pomelo
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