Lemon trees open all the year round, and the pulp is extremely sour and fragrant. The juice is citric acid, and the peel can also extract lemon oil. So many benefits of lemon, so how to cultivate lemon tree? What good method is there in breeding? What should we pay attention to in the cultivation of lemon trees? Please read with me with questions!
A lot of lemon tree cultivation methods (basic knowledge): the best breeding time: lemon is the tree species of flowering and fruiting in four seasons, while the northern potted plants are mostly flowering and fruiting in spring.
The best growing soil: Lemon likes acid soil, so you must often water ferrous sulfate water (North), like light, management is more extensive, about 0 degrees in winter moved to the house, and orange cultivation method is similar.
Growth humidity requirements: Lemon needs more water in the growth and development, but too much water is not easy to rot root. Generally speaking, spring is the period of sprouting, budding and flowering, and proper watering is required. In summer, the light is strong and the temperature is high, so it needs more water. But should be timely and appropriate, otherwise it will cause fruit drop. Autumn is the period of shoot growth and fruit expansion in autumn, which requires sufficient water. The late autumn and winter are the flower bud differentiation period, while the basin soil is dry.
The best growth temperature: generally, the plants need to be replaced at noon. The annual average temperature suitable for growth is above 15 ℃. The optimum growth temperature is 23 ℃ to 29 ℃. If the temperature exceeds 35 ℃, the plant will be frozen. Lemon generally does not need to cool down in summer. It can be safely overwintering by entering the room before the frost and leaving the room after the Qingming Festival.
The best growth light: lemon is a light loving plant, but if the sun is too strong, it will grow poorly.
Attention points of lemon tree fruit cultivation: spraying fertilizer: Lemon prefers fertilizer. In addition to applying enough base fertilizer in the basin and changing basin, the principle of thin fertilizer application should be adhered to during the growth period. The frequency and amount of fertilizer application should be determined according to the growth trend and phenological period. If liquid fertilizer is applied, the cake fertilizer water with full fermentation is better, and the ratio of cake to water is 1:200. The soil in the north is alkaline, so ferrous sulfate can be added into the fertilizer solution to prepare a slightly acidic nutrient solution.
Main points of watering: Lemon needs more water in its growth and development, but it is not easy to rot roots if it has too much water. Generally speaking, spring is the period of sprouting, budding and flowering, and proper watering is required. In summer, the light is strong and the temperature is high, so it needs more water. But should be timely and appropriate, otherwise it will cause fruit drop. Autumn is the period of shoot growth and fruit expansion in autumn, which requires sufficient water. The late autumn and winter are the flower bud differentiation period, while the basin soil is dry.
Pruning Essentials: pruning is generally divided into winter cutting and summer cutting. Winter pruning should be based on the principle of "pruning dense and leaving sparse, removing weak and retaining strong", cutting off dead branches, short cut weak branches and long branches without primary void effect. In summer, the long branches on the fruitless trees were mainly cut off, and the summer shoots were removed from the fruiting trees, and the declining branches in the middle and upper parts of the crown were cut off.
Pot soil replacement: potted lemon must be changed from March to April in spring. If the flowerpot is too small, you can change the suitable pot. If the pot is still suitable, the original pot can be replaced with new soil. When changing the pot, the bottom fertilizer should be applied.
Breeding points: pay attention to the pot fertilization, foliar spray fertilizer, cultivate strong bearing mother branches. The main measures of fruit protection are: first, strengthen the supply of fertilizer and water, accumulate nutrients; second, carry out artificial pollination; third, thinning flowers and fruits. Lemon fruit is large and needs more nutrients. The normal ratio of leaf to fruit is 30 to 40:1. According to the principle of removing the weak and retaining the strong and distributing evenly, the first step is to sparse the over dense flower buds; then, when the young fruit is 1 cm in size, part of the fruit is sparse; finally, after the physiological fruit drop, the fruit is determined according to the leaf fruit ratio. The weak branch can not be left, and the strong branch only has one fruit.
Pest control: pest control lemon diseases and pests are red spider, scale insects, aphids, etc., can be used 80% dichlorvos EC 1500 times spray control.
Mature lemon fruit culture lemon tree experience: generally lemon fruit two years, three years can bear more. In spring and autumn, soil must be changed. In addition to the main root, other fine roots are removed with a shovel, and then the pot bottom is covered with fertilizer soil, a layer of rural soil, and then planted. After planting, after autumn, let it grow. Winter is almost over. It's about the beginning of spring. At this time, parents should pay attention to let the lemon blossom and bear more fruits. This is the time: you put some branches, slender, strong, it doesn't matter. Try to bend down as much as possible, and form an n-shape with the branches at the bottom. Be careful not to break them when bending. OK, fix them with ropes. Try to make more n-shaped parts for the whole lemon. This will promote the nutrient downward, more flowers and more fruits.