Characteristics of Fertilizer requirement, High-yield fertilization Technology and time of Longan in China

The characteristics of fertilizer requirement and high-yield fertilization technology and time of longan in China: longan has large tree body, high yield per plant and obvious annual results, so fertilization is particularly important. Longan fertilization is determined according to its yield, which generally produces 100 kg fresh fruit, which requires 2 kg of nitrogen fertilizer, 1 kg of phosphate fertilizer and 2 kg of potash fertilizer. It is applied in three periods:

① fruit-picking fertilizer. When applied before and after fruit harvest, nitrogen fertilizer accounts for 40%, phosphorus fertilizer 30%-40%, potash fertilizer 25%-40%, organic fertilizer and inorganic fertilizer can be applied together, of which organic fertilizer (soil miscellaneous fertilizer, etc.) can be applied 150-200 kg per plant. This rotary fertilizer can quickly restore tree potential, promote autumn shoot emergence and development, accumulate nutrients, and lay the foundation for flower bud differentiation in the coming year.

② in early anthesis. This time, nitrogen and potash fertilizer each accounted for 20% to 25% of the whole year, and phosphate fertilizer accounted for 30%. It was applied twice before heading (before and after the Beginning of Spring) and before flowering (between Qingming Festival and Grain Rain). The former can increase the heading rate and strengthen the ear of flowers, while the latter can increase the fruit setting rate and promote the heading of summer shoots.

③ young fruit fertilizer. It is mainly potash fertilizer, accounting for 40%-50% of the whole year, while nitrogen and phosphorus fertilizer each accounts for 25%-40%. It was applied twice and once in the young fruit formation stage (the Summer Solstice) to reduce fruit drop and promote the development of young fruit and the sturdiness of summer shoot. The other time was applied in the fruit expansion period (Greater Heat to the Beginning of Autumn) to promote fruit expansion and reduce preharvest fruit drop. During the result, 0.5% urea, 0.2% potassium dihydrogen phosphate, 0.2% potassium dihydrogen phosphate, 0.2% magnesium nitrate or calcium nitrate, and 0.1% borax were also sprayed on the leaves to supplement the deficiency of nutrients.

Attached: the difference between longan and longan

Longan is longan, eating more longan is better for women's body, it can play a role in tonifying blood, calming the mind, and so on. Here is a detailed introduction of some nourishing effects of longan on women's body.

Longan VS longan

Longan is a characteristic fruit in southern China, which is often listed in large quantities in summer and autumn. it is named because of its round black luster and white navel protuberance, which looks like the eyes of the legendary "dragon". Another name of longan is longan. Fresh longan is smooth and tender in meat, sweet in juice and excellent in taste, but it is not easy to keep it fresh. People often bake fresh longan fruit into dried fruit, which is called longan meat, cinnamon pill, dried longan, dried pineapple, dried longan, etc., which is commonly used in traditional Chinese medicine. Guiyuan takes Jijin pineapple Sui Gui Yuangan in Xiamen Dongjinguo Forest Farm as the top grade.

Medicinal and nutritional value of longan

After longan is made into dried fruit longan, the health and medicinal value of longan is far higher than that of its "sister fruit" litchi, and its shell, pulp and kernel have medicinal value. The Compendium of Materia Medica says: "Litchi is the most expensive food, while longan is the best." Longan fresh fruit contains sugar, protein, calcium, phosphorus, iron and a variety of vitamins and other nutrients, especially high sugar content, and can be directly absorbed by the human body glucose; dried longan meat becomes dark brown, quality flexible, can be used in daily food, can also be compatible with medicine, strong function.

The ancients highly respected the nutritional value of longan, which was used as medicine as early as the Han Dynasty. There are many Materia Medica books about its nourishing and health care functions. "famous doctors do not record" called "intelligence", that its function can nourish the mind and wisdom. In the famous books of traditional Chinese medicine such as Shennong Materia Medica Classic and Compendium of Materia Medica, it is recorded that longan (longan) tastes sweet, belongs to warm nature, and has the effect of tonifying the heart and spleen, nourishing blood and calming the mind.