What kind of lemon seedlings is good? What are the methods of raising seedlings?

When it comes to lemons, many friends will think of a word, that is sour. But the nutritional value of lemons is very high, and friends who like to eat lemons do not think lemons are particularly sour. In addition, lemon juice is the best seasoning for many drinks and foods. So which variety is the best to grow lemons?

What kind of lemon seedlings is good?

1. Yulik

Also known as Youlike, Youlijia, originated in the United States, is currently the most widely cultivated variety in the world, the fruit is oval to Obovate, the fruit is medium-large, the single fruit weighs 90cm 160g long oval, the top is papillary protruding, the base is obtuse and round, and there are radial grooves. The pericarp is yellowish, the oil cell is large, and the skin is thin and less nuclear under the normal management level.

two。 Fino

Originated in Spain, the main variety in Australia. The fruit is moderate in size, spherical or oval in shape, light yellow or yellow in color, thin and smooth in skin, and highly acidic.

3. Genoa

Originated in Genoa, Italy, the pericarp is smooth and thin, the shape of the fruit is rounder and the neck is shorter than that of Yurek, and its citric acid content, juice yield and pericarp thickness are similar to those of Yurek.

4. Beijing lemon

Also known as fragrant lemon, Meihua lemon, lemon and orange or lemon and wide-skinned orange hybrid, found in the suburbs of Beijing in 1908, brought back to the United States to continue breeding. It has low acidity, slightly bitter taste, soft internal structure, excellent resistance, heat and cold resistance, thin juicy pericarp and not resistant to transportation and storage.

2. Methods of raising lemon seedlings

1. Shoot growth

Lemon has a strong growth potential, drawing new shoots 3 or 5 times a year, drawing shoots, blooming and fruiting many times, with long, sturdy shoots and good yield.

Spring shoots from February to April: the germination time of new shoots was consistent, and the number was large, and the shoots were short, fine and neat, and most of them differentiated flower buds and formed fruiting mother branches.

Summer shoots from May to July: the branches grow strongly, absorb more nutrients, the leaves are dark green, and the cross section of the branches is rhombic, which is easy to form long branches.

Autumn shoots from August to October: most of them are female branches of the following year. Under the influence of flowering and fruiting, the number of shoots is small, the branches are slender, and the development is not full.

Winter shoot from November to January of the following year: due to the influence of low temperature and nutrients, the number of hair is small, the nutrition is insufficient, and it is easy to produce yellowing.

two。 Pruning points

The main purpose of pruning young and primary fruit trees is to cultivate the crown skeleton in order to expand the crown faster and better. Pruning of young trees is suitable in winter, coring and necessary truncation should be carried out in the growing season, and branches and leaves and auxiliary branches should be retained as much as possible.

Long shoot coring: young trees should draw long shoots, after each season shoot, except for keeping 8: 10 coring for long shoots, the rest should be made for tender shoots. It is appropriate to leave a length of 20-25 cm to enrich the robust crown, early branching and multi-branching, so as to expand the crown as soon as possible.

Erase the long branch in time: the long branch disturbs the shape of the tree and wastes nutrients. It should be erased in time.

Pull branches: for the vigorous growth of upright branches, it is appropriate to use the method of pulling and supporting. The strong branches are pulled down and the solution angle of the larger branches is 40 °~ 50 °. If the young trees are pulled and braced, the young trees can bear fruit 1 ~ 2 years earlier.

Wiping buds and putting shoots: young trees can be sprouted in summer, that is, an autumn shoot, in order to expand the crown as soon as possible.

Summer shoot pruning: young trees with strong growth have more strong shoots. As the strong summer shoots are not easy to produce autumn shoots and are not conducive to flower bud differentiation, bud wiping and thinning are carried out from May to July. Therefore, it was completely cut off in early August, so that more autumn shoots were produced from late August to early September. Most of these autumn shoots blossom and bear fruit the following year.

Auxiliary branch cultivation: branchlets that usually grow in the crown should be retained as long as they are not overgrown and overdense branches. These twigs are often good fruiting mother branches for young trees.

Flower thinning and bud thinning: the buds and fruits of weak trees before planned fruit production should be removed in time to promote tree nutrition production and form a fruiting crown and put into production as soon as possible.

3. Protect flowers and fruits

0.2% zinc sulfate was applied once after spring bud germination, 0.5% urea + 0.2% calcium superphosphate + 1% potassium sulfate was sprayed before flowering, and 0.4% urea 0.5% urea + 0.2% ~ 0.3% potassium dihydrogen phosphate was sprayed together with 0.4% urea + 0.2% ~ 0.3% potassium dihydrogen phosphate after flowering, and 0.3% urea + 3% calcium superphosphate + 0.5% potassium sulfate was sprayed during fruit expansion. In order to maintain sufficient soil moisture after the young fruit is stable, the key is to water thoroughly 10 days before spring.

4. Fertilization management

The purpose of fertilizing the unfruited young trees is to promote the crown to grow as soon as possible so that it can be put into production as soon as possible. However, attention should be paid to prevent the excessive growth of excessive nutrition caused by excessive fertilization, so as not to blossom and bear fruit. To apply fertilizer to young trees, it is necessary to grasp the principle of "applying frequently and thinly". Young fruit trees mainly apply fertilizer three times a year:

The first fertilizer is pre-flowering fertilizer in mid-February, accounting for 25% of the whole year. 800-1600 kg of farm manure, 8 kg of urea, 8 kg of superphosphate and 8 kg of compound fertilizer should be applied per mu.

The second fertilizer is from the end of June to early July, accounting for 50% of the whole year. 1600 kg of farm fertilizer, 16 kg of urea, 16kg of superphosphate and 8kg of compound fertilizer should be applied per mu.

The third fertilizer is from the end of August to early September, accounting for 25% of the whole year. 800-1600 kg of farm fertilizer, 8 kg of urea, 8-16 kg of calcium superphosphate and 8-16 kg of compound fertilizer should be applied per mu.

To sum up, it is all about today. Now there are several famous lemon varieties, such as Eurek and Fino. When you choose, please consider the local ecological environment.

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