March for red lychee litchi litchi litchi Seedless black leaf dry litchi 

 Litchi fruit, also known from the branch, Dan Li, Li Chi, originating in southern China, Guangdong, Guangxi, Fujian, Sichuan, Taiwan, Yunnan, cultivated the most. The city is the largest litchi production base, is the world's largest, the total output accounted for 25% of the country, accounting for 20% of the world, the city has a long history of litchi cultivation, has been more than two thousand years of history. I am in the main varieties are: Red March, Guiwei, Nuomici, Feizixiao, black leaf, wax and so on. 

 Litchi cultivation techniques 
 First, the establishment of litchi 
 1, the garden of choice: lychee on soil adaptability, mountains, hills is the development of the main areas of litchi. Col should choose loose fertile valleys and deep soil, water, convenient to the mountain circuit. Mountain slopes should not exceed 30 degrees. 
 2, garden planning and reclamation: the larger the litchi orchard to go through the planning, considering the planting area, road layout, drainage system settings and building planning. But the focus should grasp the construction of the orchard soil and water conservation and other high-level terraces. 4 degrees below the gentle slope, do not open terraces and contour planting. Variety of configurations should be combined with the characteristics of each species. Species such as the low humidity in the black leaves, optional moisture Waterlogging varieties. In addition a number of pollination with the growing tree is dioecious flowers for litchi fruit, and male and female flowers different heat, do not open during the same results caused by pollination rate is much lower than the longan. For example: the black leaf-based 10% can be Hunzai Early Red, large build and so on. 
 3, colonization: 
 (1) seeds: to be elected year after grafting seedlings seedlings or high pressure, developmental growth and well-developed root system of those seedlings. 
 (2) planting time: in the spring, when the temperature rose quickly, abundant rainfall and rapid growth, high survival rate. 
 (3) planting density: 20-25 per acre mountain orchards to plant appropriate. Close Planting can also be considered dwarf, but higher technical requirements. 
 (4) planting method: first, deepen the width of the 0.8 × 1.0 meters large hole, layered onto the draft rod plant, green manure, garbage, Tuza Fei and lime, back to the dirt onto 20 cm above the original soil. Irrigation after planting should be adequate, Efficiency in Tobacco Fields dead at the cover, side by side pillars of wind. 
 Second, the management of litchi 
 1, the young trees: 
 Should be applied after planting shoots thin hair fat, master, "a tip two fat," that is applied at the time when buds sprout, shoot leaves from red to green Zaishi second time, better fertilizer to organic fertilizer, can also be combined fertilizer, urea fertilizer, but each time only half of two, and grew up with the increased amount of fertilizer plants. Shallow trench should be dug under the fertilizer and mulch applied. Saplings shallow root system, if the move is timely irrigation of drought. Efficiency in Tobacco Fields and between the lines, such as weeds, can be removed at any time manually or by herbicides. Plastic is in the trunk 30-50 cm from the ground cut the top, leaving 4-5 shoots as the main branch branches, requiring strong and evenly distributed in the main branch on the pumping 1-2 students to stay for lateral shoots, after When shoots reach 20 cm each branch once formed by artificial control of the lychee garden more spherical semi-open canopy. 
 2, the result tree management 
 1) fertilization, litchi leaves with three NPK ratio of 1:0.11:0.55, is conducive to bear fruit physiological indicators. Litchi commonly used fertilizer organic fertilizer, manure or fertilizer unit. Nutritious organic fertilizer, and can improve soil physical and chemical properties, is the best fertilizer. Fertilizer applied 2-3 times a year litchi, first fruit picking fertilizer, timely resumption of tree condition, priming results in summer and autumn for the following year, laying the foundation. Fertilization generally based on the results of 50 kg tree, Shi chicken 20-25 kg, 1.2-1.8 kg of fertilizer, urea 0.5-0.8 kg. Or equivalent fertilizer and other organic fertilizer fertilizer. Fertilizer is another spikelet promotion aimed at promoting spikes robust, improve fruit set, 2-3 kg of fertilizer per plant can be applied. Once again, a strong fruit fertilizer, fruit growth and development to ensure the required nutrients, to increase production to reduce fruit drop. The available fertilizer compound fertilizer should be based, and have no excessive nitrogen fertilizer. 
 2) soil management, mainly cultivation, weed and herbicide can be applied to improve efficiency, reduce soil erosion. 
 3) pruning, aims to enable uniform distribution of branches, crown venting transmission, remove the useless branches and reduce nutrient consumption. 
 4) Shoot control of winter, the winter accumulation of shoot nutrient consumption, and low temperature can not be differentiated in the bud, resulting in no flowers the following year or less to spend, it must be strictly controlled. Mainly for controlling the pumping issued in November and the winter after the shoot. Tip control methods: one is 20 cm Efficiency in Tobacco Fields outside the open ditch, cut off the absorbing roots. Second, spiral girdling the trunk. The third is already out for the winter and into the shoot shoot man take off, but more cost labor. Fourth tip of drug control, such as: long winter shoot in just when the spray concentration of 400-600PP-meter liquid ethylene Lee shoot to kill, the other when in the autumn shoot aging inhibitors such as paclobutrazol spray, fresh green pigment, also inhibit . 
 5) protecting flowers and fruits, the lychee fruit to spend large amount of small (only 1-2%), mainly poor pollination, lack of nutritional supplements. Thus the following measures should be taken to resolve: truncated spikes, artificial ear cut off half or one third of the length to reduce the amount spent; Fangfeng pollination, put 1-2 Qunfeng mu, flowering rainy, after the rain should be shake off the water take to accelerate the drying, to prevent the steep flower. In case of moisturizing dry hot water should be cool. 
 March for a large number of red lychee litchi lychee black leaf dry litchi litchi litchi Seedless Seedless Miao Miao dried litchi litchi litchi trees. Tel: