What are the cultivation methods and precautions of lemon tree?

Lemon, a citrus plant in Rutaceae, likes warm and shade, and is suitable for cultivation in subtropical areas with warm winter and cool summer. Because lemons are afraid of high temperature, they need to be watered once every three days and fertilized 5-6 times a year. Pruning can be done all year round, especially in winter. Because lemon has a strong ability to resist pests and diseases, prevention is the main thing, so attention should be paid to cleanliness and hygiene in cultivation management.

The growth habit of lemon tree, a plant of Rutaceae and Citrus, is also called lemon fruit, foreign lemon and beneficial mother fruit. The common main varieties are Eureka, Genoa, Villa Falanca, Fino, Felmy Lao, Villa, Lisbon, Beijing Lemon, Improved Beijing Lemon, Indian Big Fruit and so on.

The methods of lemon reproduction can be divided into two categories: sexual reproduction and asexual reproduction. There are methods of asexual propagation, such as grafting, cutting, layering and tissue culture, among which grafting propagation is the most common.

The cultivation method of lemon tree is warm, shade-tolerant, not cold-resistant, and also afraid of heat, which is suitable for cultivation in subtropical areas with warm winter and cool summer. The suitable annual average temperature is 17- 19℃, the annual effective accumulated temperature (10℃) is above 5500℃, the monthly average temperature of 1 is 6-8℃, and the extreme minimum temperature is above -3℃. The annual rainfall exceeds 1000 mm and the annual sunshine hours exceed 1000 hours.

Lemon is suitable for planting on warm gentle slope, with deep soil layer and good drainage. The most suitable soil pH value of lemon is between 5.5 and 7.0. Lemon plants grow faster, 3-6 meters high, and need a lot of fertilizer. They sprout, blossom and bear fruit many times a year. Due to good management, the yield often varies greatly. Watering method Lemon trees are afraid of high temperature, so they should be watered once every three days and thoroughly, so that they can grow better, have bigger flowers and fuller fruits. Fertilization method: Generally, 80g of nitrogen, 40g of phosphorus and 30g of potassium are applied to the annual young lemon trees, and then the annual increase is about 10g. 2-4-year-old young trees, the fertilization period is concentrated before each shoot. Fertilize 5-6 times a year, and spray 3-4 times on the leaves at the tender branch stage. Pruning method Lemon pruning can be carried out all year round, but mainly in winter and spring, supplemented by pruning in growing season. With the increase of tree age and yield, the amount of pruning will increase year by year. In pruning, summer pruning is more used, combined with tree cultivation, auxiliary main branches and side branches are continued to be configured, extended branches are shortened, and long branches disturbing the tree are deleted as much as possible.

In spring and autumn, leave weak or moderate vegetative branches as fruiting mother branches to ensure that there are enough flowers and fruits in the coming year, so that the vegetative center of trees can turn to reproductive growth in time.

Matters needing attention in cultivation of lemon trees Lemon has a strong resistance to pests and diseases, especially in the north of China where the climate is dry and there are few pests and diseases. Mainly prevent pests and diseases, and pay attention to cleanliness and hygiene in cultivation management. There is dust on the leaves, so it should be washed with water. Ventilation and light transmission are also important.