High-yielding cultivation techniques of longan

Longan, also known as longan, is a tropical fruit with sweet and juicy flesh, mainly distributed in Southeast Asia and the southern part of China. The dried fruit of longan is longan, which is not only a delicious food, but also a traditional Chinese medicine with high nutritional value. Planting longan can achieve considerable economic benefits, the following is to introduce the high-yield planting techniques of longan.

I. selection of species and sites

There are more than 30 varieties of longan, so before planting, we should choose suitable varieties according to the local market and climatic conditions, and try to choose varieties with good characters, such as self-dew and Mid-Autumn Festival.

When choosing to plant soil, it is best to choose humus soil or sandy soil that is flat and fertile. It is necessary to deeply plough and turn the soil before planting to ensure that the soil has a good permeability, which is conducive to the survival of seeds. The site should be selected on a hillside with plenty of light and good ventilation, preferably close to the source of water, so that the problem of irrigation can be solved.

Second, the fertilization technology of "double fertilizer in one year"

"double fertilizer in a year" refers to the application of both postharvest fertilizer and winter fertilizer in a year, as well as a heavy fruit fertilizer as a supplement fertilizer. Among them, postharvest fertilizer is the most important, which is the focus of fertilization throughout the year, accounting for 70% and 80%. Longan has consumed most of the nutrients in the tree during the months of hanging fruit, and quick-acting fertilizer based on nitrogen fertilizer should be applied immediately after picking. The role of postharvest fertilizer is to quickly supplement the nutrients lost by the tree, restore the growth of the tree as soon as possible, and promote the growth of autumn shoots. Winter fertilizer is fertilized in December, when the tree is dormant and has less nutrient loss. Winter fertilizer is mainly composed of miscellaneous fertilizer, garbage fertilizer and organic fertilizer.

Third, the technology of "two controls and two promotions"

"two controls and two promotions" refers to "controlling the extension of winter shoots, promoting winter buds to grow into flower buds" and "controlling shoot growth to increase the ratio of female flowers". When the winter shoot sprouts and grows, it is necessary to supplement the nutrition of the winter shoot growth in time, promote the winter shoot flower bud growth, and make the flower bud differentiation proceed smoothly. After the flower bud grows, the nutrient solution should be sprayed in time to provide sufficient nutrients for the flower bud branch, so as to adjust the relationship between the vegetative growth of the tree and the reproductive growth of the flower bud, and make the new young leaves break away from the tree body, so as to achieve the purpose of controlling shoot growth.

Fourth, the technology of protecting flowers and fruits

In the process of longan planting, we should pay attention to replenishing the tree nutrition in time to make the trees flourish, so that the trees will have extra nutrients for the development and ripening of the fruit. Adequate nutrition can also shorten the growth period of the fruit and accelerate the ripening of the fruit. The quality will be better and get a higher selling price.

V. matters needing attention

Longan likes fertilizer, but be careful not to use chemical fertilizers and hormones blindly in the process of planting longan. It is best to choose farm manure fermented by livestock such as cattle and sheep, in which you can use some vitamins and growth hormone. But pay attention to the dosage and use, for late-maturing varieties can not take this method.

The above is a brief introduction to the high-yield planting techniques of longan. If there are farmers who plant longan, they might as well try the methods mentioned above, and if there are other good methods and suggestions, they can also be supplemented.