New cultivation techniques of promoting Flower in Longan in four Seasons
Longan is a subtropical evergreen fruit tree, which originated in the provinces of southern China and has been cultivated for more than 2000 years. Longan fruit is of high nutritional value and delicious, which has the effects of tonifying the heart and spleen, nourishing blood and calming the mind, preventing vascular hardening and anti-aging. Under natural circumstances, longan flowers need cool, dry and other climatic conditions, in recent years, the climate is more frequently abnormal, winter is either warm and humid, easy to winter tip, or cold wave frost is serious. The abnormal climate disturbs the normal physiological state of longan trees. Therefore, the difficult problem of making longan into flower is more common in our province and even in the southern producing areas of our country. In addition, the mature season of longan is generally from July to August, the listing is too concentrated, and the great pressure of market sales is a major factor affecting its economic benefits. if longan fresh fruit is supplied all the year round, its price and benefit will rise steadily. Generally speaking, the success of longan annual flower promotion technology will have the following significance: 1. Greatly deepen people's understanding of longan flower bud differentiation and flower formation theory; 2. It can overcome the emergence of longan years, ensure the high and stable yield of longan, and can advance or postpone the harvest on the market, and there are timely remedial measures in the case of unsatisfactory flowering and fruiting. 3. It can adjust the blooming and fruiting period of longan according to people's wishes, purposefully produce out-of-season longan, prolong the supply period of fresh fruit, adjust market supply, reduce sales pressure, stabilize price and increase economic benefit. 4. It will greatly promote the development of tourist orchards. At present, the efficiency of most sightseeing orchards is poor and difficult to sustain, one of the reasons is the lack of annual supply of high-quality fruit, the lack of fresh fruit varieties for tourists to pick and taste throughout the four seasons. 5. The technology of controlling shoot and promoting flower is simplified and improved, and the negative effect of long-term use of physical and chemical technology on tree growth is avoided.
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Cultivation techniques of high quality and high yield of longan
Supplement nutrients to prevent fruit drop: longan is in the young fruit growth period, the main work is to prevent fruit drop, prevent retting roots, and ensure the normal growth and development of fruit. The current Rain Water of ① is very beneficial to the growth of young longan fruit. In well-managed orchards, young fruits grow well. As a result of the early drought, many fertilized.
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Autumn management of longan grape
After longan crops are inoculated and planted, if they can be managed normally, they will enter the fruiting period after 3 years, timely release autumn shoots, cultivate the formation of strong fruiting mother branches, control winter shoots, pay attention to ear thinning and panicle control during flowering, improve fruit setting rate, and do a good job in the prevention and control of diseases and insect pests. it is the key technical measures for high and stable yield of longan fruit trees, among them, flowering and fruit stage.
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