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Second, the selection of species from the current situation of the trial species, the red heart Xiantao, late red honey, peach king ninety-nine, Huawanglu, Chinese winter peach 2, etc., in most parts of Yunnan performance is better and stable, China Shou Tao, Fu Xingshou peach Such as poor performance. It is advisable to introduce the test first, and then select the varieties that are suitable for the local climate and have high yield, stable production and good quality.
3. To build a “five†peach orchard that is standardized, scaled, standardized, commercialized, and industrialized in accordance with the “four high†requirements of high starting point, high standards, high quality, and high technology, it is necessary to build a garden to produce more quality products. Excellent high-grade peaches open up the market to meet the market demand and gain consumer's welcome.
Fourth, when planting thin tubes, the varieties should be pure, the roots should be strong, the ponds must be full, the depth is suitable, the density is reasonable, and the solid foundation for “three minutes†should be laid. After the planting, the soil, fertilizer, moisture, Pruning, plant protection, and fruit and other six "seven points." Among them, plant protection (insect pest control) is the most critical, because the dry and rainy seasons are clear in most parts of Yunnan, and the rainy season in June-October is the fruit growth period and the occurrence of diseases and insect pests, often due to peach scab, anthracnose, and brown rot. , Peach Moth, peach borer, pear fruit fly and other fruit damage, as a pest fruit, loss of goods and food value, so we must control these pests, which is the key to success.
In the fertilization, due to the large amount of potassium required and the need for complete elements, it is necessary to coordinate the ratio of nitrogen, phosphorus and potassium and supplement the trace elements. In the annual growth cycle, the ratio of nitrogen, phosphorus and potassium is approximately 1:0.5:1.5. Insufficient potassium, light leaves, pale leaves, coked leaves, yellow leaf spots, leaves falling early, heavy fruit drop, unripe fruit and the top of the first rotten. During fertilization, nitrogen dominated from February to May, followed by phosphorus and potassium, to promote flowering, leafing, shoots, and young fruit growth; from June to July, phosphorus dominated, followed by nitrogen and potassium to promote seed development. And flower bud differentiation; from August to October with potassium, followed by nitrogen and phosphorus, in order to promote fruit enlargement, sugar conversion, increase coloration, improve quality. In the growing season, top-dressing fertilizers are used to supplement calcium, magnesium, boron, zinc and other trace elements.
Late peaches and winter peaches must be bright and beautiful, less harmful to pests, and must be bagged with fruit. Bagging is carried out within 50-60 days after flowering, and bags are removed 30 days before harvest to allow them to be colored and converted into sugar. One day prior to bagging, spray 1000 times mancozeb manganese plus 3,000 times enemy kill, or 1500 times thiophanate methyl plus 3,000 times kung fu to prevent pests during bagging. The fruit bag uses a double-colored double-colored bag with a yellow-white outer layer and an inner black layer. The bag should be a medium-thick, flexible, and impervious bag, and should not be a poor-quality bag that is thick, brittle, or permeable. The other management is the same as that of medium and early ripe peaches.
Cultivation Techniques of Late-ripening Peach
First, the garden conditions Late peaches and winter peaches need the same environmental conditions as ordinary peach. Yunnan is located at an altitude of 1800-2100 meters, with an average temperature of 12°C-15°C, an accumulated temperature of 4000°-4500°C at ≥10°C, an annual rainfall of 800-1000mm, an annual sunshine of 2000 hours, good irrigation and drainage conditions, convenient transportation, and a gently flat terrain. , Deep soil, sandy loam or light sandy loam, loose and fertile, organic matter, ph value 5-6.5 zone, can be planted.