Spring: minimum outdoor temperature 10? The above can lift the anti-freezing facilities. Generally, Jiangnan area can be cultivated in the open air from the end of March to the beginning of April. The weather is still cold in early spring, so we should pay attention to the temperature change in the greenhouse. MINUS 5 in a row? Heat preservation measures should be taken above. Pay attention to whether there is distilled water on the leaves in the shed at night. If there is any need to add straw mats to absorb water, because the bergamot tree is at-10? There is basically no freezing damage if there is no distilled water left on the leaves. This is the key to winter. The flowerpot soil in the shed should be kept dry, and the basic requirements and principles of not watering should be mastered, which is also the characteristic of fingered citron growth. Fertilizer should be applied once every half month or so, and the characteristics of fertilization are based on the principle of thin fertilizer and diligent application, and the number of applications should be increased as little as possible. In the open air, once every 10 day, the total amount of fertilization per thousand plants shall not exceed 10 kg of imported compound fertilizer. The cake fertilizer is about 1000 plants 100 kg. In addition, we should pay close attention to the danger of red spider. Please refer to the dosage and usage of acaricide in pesticide shops. Except dimethoate, omethoate and dimehypo, these pesticides will cause serious defoliation or death to fingered citron. Most of them use isocarbophos and pesticides with high efficiency and low residue. In addition, bud work should be done well, all buds without buds should be erased, and the fertilization amount of trees just out of the shed should be halved, and then increased in due course when the growth is stable. Summer: the fruit growth of spring flowers and the fruit setting period in summer. Continue to do a good job of bud wiping to promote yield and quality. Pay attention to the hazards of pests and red spiders. Spraying fungicides (imported thiophanate, carbendazim, etc.) should be added after continuous heavy rain. Watering characteristics: when the temperature is high, water all around at 10 in the morning, with dry watering, semi-dry watering less, and wet watering not. A garden-wide inspection will be conducted at 3 pm, and the dry ones will be watered and the dry ones will not be watered. Second, 35 The above continuous high-temperature fruits should be shaded and sun-protected. Fertilization should be used once a week, depending on the tree's potential and the amount and frequency of fertilizer used. In mid-July, high layering was started as the female parent of bonsai. In general, the main technical points of tree layering are to cut off the leaves and thorns from the fruit15cm, cut three crevasses reaching the xylem straight on three sides of the branches with a knife, and then wrap them in a moss ring, which is as big as a fist of a 3-to 4-year-old child, and tie them tightly at both ends with a plastic film for external use, that is, to complete the process of layering at a high position. Only when you feel hard by hand can you meet the requirements.

Autumn: Bud wiping will last until August 5th, and comprehensive pruning will be started. Prune more than 80% of the fruitless branches comprehensively, and the pruning work shall not exceed 10 days. Three days after pruning, the pesticide of leaf miner began to be sprayed, and 30 kg of water was added with "Kangchong Dan" 15 g, and it was carefully sprayed once every four to five days for 5 to 6 times until the new leaves grew and set. This is an important step to ensure the annual output and tree shape in the next year. Watering in autumn should be based on inspection watering. Fertilization depends on the growth of trees, which are usually applied once every 20 days. Prepare winter materials and do a good job of preparation before winter. Pay attention to pest control.

Winter: Generally 1 1 the winter greenhouse work should be completed in the middle of the month. Generally, ordinary greenhouses can be used for wintering in Jiangnan area. One layer of shading net and two layers of thick film can be made of iron frame or bamboo structure, with straw mats hanging around the ground inside and two rows on the top of the shed. In case of severe freezing, it is necessary to heat up or add straw mats in time, or apply decomposed and dry manure to improve the thermal insulation performance of the basin soil, and pay attention to pest control and thorn cutting. Snow should be removed in time on snowy days to prevent heavy snow from crushing the greenhouse. Strictly control water content to prevent waterlogging of basin soil. Note: The function of straw mat: (1) insulation; (2) absorption of water in the shed, which is necessary for the shed. The key points in the production of bergamot are diligence-oriented, meticulous work, and the use of pesticides alternately to prevent pests from drug resistance. The above refers to the trees entering the fruiting period, and the newly planted trees should leave two shoots, namely, spring shoots and autumn shoots. The whole branch should be tough, not tough.

To plant bergamot, you should choose a place with convenient transportation, strong light and moderate air circulation.

1. bergamot is a light-loving plant, and it needs plenty of sunshine for its growth and development.

2. 10-3 1? C is the most suitable growth temperature, 0? Under c, you need to enter the greenhouse for the winter. C can also grow normally.

3. loose, fertile sandy soil with good air permeability and water permeability should be selected. Pot 7- 15 to fertilize once, and mix farmyard manure with clear water to make light fertilizer.

(1:12 or so), a small amount of cake fertilizer and compound fertilizer can be placed in the basin; Generally, no fertilizer is needed for ground planting.

4. Need proper water, too much will cause mildew roots, too little will cause leaves to fall. Potted soil should be "dry and watered, wet and not watered"; Planting bergamot in the ground and arranging it well

Water works.

5. bergamot is almost disease-free, pest control is simple, and only pesticides are needed for pests.

To sum up, it plays a key role in the growth, flowering and fruiting of bergamot. If properly mastered, it can make bergamot flourish and bear numerous fruits.

How to raise potted lemons?

The daily maintenance of potted lemons is not too difficult, as long as you master the following links:

1, Lemon is native to India, and likes warm and humid environment. It can be given full-day illumination on weekdays, but when the temperature exceeds 30℃ at noon after flowering, it should be properly shaded, otherwise it will affect normal flowering and hinder fruit bearing.

2. Lemons need more water in their growth and development, but too much water is easy to rot roots. Watering should be carried out according to the changes of seasons. The weather is cool in spring, so it is necessary to water them properly. In summer, the light is strong and the temperature is high, so it needs more water, so it should be timely and appropriate, otherwise it will cause fruit drop; Autumn is the period of rapid fruit expansion, so it is necessary to keep enough water at this time; In late autumn and winter, the basin soil will be dry to help the winter smoothly.

3. Lemons prefer fertilizer. In addition to applying sufficient base fertilizer when putting in pots and changing pots, we should also adhere to applying thin fertilizer frequently during the growth period, and apply fully fermented cake fertilizer and water regularly. Because the soil in the north is generally alkaline, ferrous sulfate can also be added to the fertilizer solution to make a slightly acidic nutrient solution, which will have a better effect.

4. After the lemon bloom, if you want the lemon to bear fruit, it will be pollinated artificially at this time, because potted lemons are not pollinated by bees and butterflies in nature like lemons planted in the open air, so we are the only ones to act as bees. The best pollination time is around 9: 00 in the morning, after the petals are stretched out, so that the pollination effect is the best.

5. Don't think that the more fruits, the better. Too many fruits will increase the burden of plants and consume too many nutrients. Therefore, it is necessary to pick off some buds before the flowers bloom, and then pick off some unsuitable young fruits after the flowers fade and set fruit, so that nutrients can be concentrated and provided to the remaining fruits. When the fruit begins to turn yellow and is about to ripen, if you want to watch it for a long time, you should stop fertilizing and water less at this time, otherwise the fruit will fall early because of ripening.

6、

Potted lemon pots have limited soil and insufficient nutrition supply, so they should be turned over once a year in spring, and sufficient base fertilizer should be applied when turning over the pots to ensure adequate nutrition. In combination with changing pots, plants should be pruned to remove dead branches, diseased branches, long branches, etc., so that the strong branches left can blossom and bear fruit every year.