Cultivation techniques of papaya trees, cultivation methods of papaya

1. Soil. Papaya is adaptable to soil, but it is best to choose loose, fertile, weakly acidic sandy or alluvial soil. It is necessary to loosen the soil frequently to maintain the permeability of the soil.

The most common method is to apply sulfate fertilizers, such as ammonium sulfate, potassium sulfate, etc., to the soil front, which can slowly acidify the soil.

2. Illumination. It has high requirements for light, and it is necessary to ensure sufficient light every day. In the case of insufficient light, the stems are thin, the internodes and petioles are long, the leaves are thin, and the flower buds are poorly developed.

However, in the season of high temperature and strong light in January, appropriate shading should be considered to avoid the impact of sun burn on the quality of the fruit.

3. Temperature. It prefers a warm climate, and the best annual temperature for its growth is that the growth tends to be slow, and the young organs begin to suffer frost damage at 5 o'clock, and the leaves wither at 0 o'clock. High temperatures are also not conducive to growth and development.

Fourth, watering. The humid surrounding environment is conducive to its growth, and it should be watered in time during the summer dry period. It can be carried out in a variety of ways such as sprinkler irrigation and drip irrigation, and irrigation is recommended when conditions permit.

5. Fertilization. Because it needs more nutrients and trace elements such as calcium and potassium to grow, regular fertilization is essential. It is recommended to water livestock manure or rotted cake manure once a year in early spring and before winter to make it grow healthily.

6. Precautions.

1.Tillage and weeding should be carried out 4-5 times a year, which greatly increases the permeability and nutrients of the soil**, which helps its growth. 2.The main pests are spider mites and snails. Pesticides should be sprayed regularly and regularly to control insect pests.

When preparing soil and planting papaya trees, it is necessary to mix humus, garden soil and sandy soil to make a cultivation substrate; The transplanting method requires that the seedlings with strong growth are not selected by the skin, and the root system is pruned and then digged and transplanted; Watering method, after transplanting is completed, it needs to be watered thoroughly, and covered with a layer of plastic film to retain water; Fertilization method, generally can be applied every 15 20 days after the release of liquid fertilizer.

When planting papaya trees, the first thing to pay attention to is the choice of soil. Papaya trees are suitable for growing in loose porous, drained and breathable soil, and when mixing soil, humus, garden soil and sandy soil can be mixed into a substrate for cultivation, so that the root system of papaya trees can grow better.

After the soil preparation is completed, the seedlings that grow robustly and have not been attacked by diseases need to be selected, the rotten and withered root system is pruned, a deep pit 1 meter long and wide is dug out, and after the soil is disinfected, the seedlings can be transplanted into the soil, and the soil can be filled until the roots are level with the ground.

After the papaya tree is planted, it needs to be watered for the first time, this time the soil needs to be watered thoroughly, so that the soil is fully mixed with the soil, so that the soil is in a moist state, but be careful not to leave the soil with water. After watering, cover the soil with a plastic film to ensure soil moisture.

Daily fertilization of papaya trees, according to the growth state and the state of the soil to make appropriate adjustments, if in the process of soil preparation, the use of too much humus, soil fertility is more sufficient, you can choose to apply diluted liquid fertilizer. Generally, the fertilizer can be applied every 15 to 20 days.

Summary. Key points of papaya cultivation technology 1In addition to choosing varieties with excellent and high yields, we should also choose according to the actual local planting environment, and be careful not to blindly follow the high-quality varieties boasted on the Internet.

2.It is recommended to choose loose and fertile, well-drained sandy soil for cultivating papaya, and remember to grasp the plant spacing and planting holes. 3.

Soil preparation and fertilization: About 10kg of farm manure is applied to each planting hole. The seedlings are mainly about two years old, and the cultivation time should be selected in spring and autumn. Autumn is usually the main practice because autumn cultivation is faster and has a higher survival rate.

The height of the seedlings is kept at about 120 cm, the roots are intact, and the watering is done after planting, and then the mulch is covered. 4.Water and fertilizer management is applied to the base fertilizer around September every year, mainly farmhouse fertilizer, and about 130 kg of urea and an appropriate amount of compound fertilizer should be applied to the hole before the papaya tree sprouts.

Pay attention to the proper spraying of foliar fertilizer. Remember to apply nitrogen fertilizer after harvesting. In terms of watering, the flower buds should be watered once in large water, and after entering the fruit expansion period and the new shoot growth period, they should also be properly watered, and they should be watered enough to release frozen water to promote the overwintering of papaya trees.

Drain water in time when there is too much water.

Key points of papaya cultivation technology 1In addition to choosing varieties with excellent and high yields, we should also choose according to the actual local planting environment, and be careful not to blindly follow the high-quality varieties boasted on the Internet. 2.

It is recommended to choose loose and fertile, well-drained sandy soil for cultivating papaya, and remember to grasp the plant spacing and planting holes. 3.Soil preparation and fertilization: About 10kg of farm manure is applied to each planting hole.

The seedlings are mainly about two years old, and the cultivation time should be selected in spring and autumn. Autumn is usually the main practice because autumn cultivation is faster and has a higher survival rate. The height of the seedlings is kept at about 120 cm, the roots are intact, and the watering is done after planting, and then the mulch is covered.

4.Water and fertilizer management is applied to the base fertilizer around September every year, mainly farmhouse fertilizer, and about 130 kg of urea and an appropriate amount of compound fertilizer should be applied to the hole before the papaya tree sprouts. Pay attention to the proper spraying of foliar fertilizer.

Remember to apply nitrogen fertilizer after harvesting. In terms of watering, the flower buds should be watered once in large water, and after entering the fruit expansion period and the new shoot growth period, they should also be properly watered, and they should be watered enough to release frozen water to promote the overwintering of papaya trees. Drain water in time when there is too much water.

5.Pruning points: The shaping method of papaya trees is mainly based on the natural round head type, with a fixed stem of about 75 cm, and about 3 new shoots are reserved for the main branch, and the growth direction of the main branch cannot be the same. The distance between each main branch is kept at about 15 cm.

Then do a good job of summer pruning, summer pruning is mainly to wipe buds, pull branches and top, improve the permeability of the canopy, and promote the growth of summer shoots. Winter pruning is also carried out, which is mainly to expand the canopy. The main branch reserved for the first year is shortened, and about 35 cm is retained.

Young trees should not be re-pruned, mainly to remove branches that are too dense and too long, cross and overlap.

The cultivation of this papaya tree, in fact, it has strict environmental requirements, and relatively speaking, the north is not suitable for planting papaya trees at all, which belongs to the south, because its temperature must be about 15 degrees.

Seedlings should be sown first, and then choose a suitable soil for planting, the nutrient content of the soil should be relatively high, and pesticides and fertilization should be sprayed in time, and in the process can also be a good understanding of how to grow papaya.

First of all, it is necessary to find good quality papaya seeds for planting, and then strictly control the temperature and humidity of the papaya growth space, timely watering, timely fertilization, and also to prevent pests and diseases, and also to remove some branches and leaves that have been affected by pests and diseases.

First of all, the papaya is planted in the moist and fertile land, and then the land is watered every day and must be watered thoroughly, that is, fertilizer should be applied every two days, so that the papaya can grow healthier and stronger, and the growth of the papaya should be observed at any time.

To choose the right variety for planting, we must choose the right soil for planting, prepare enough base fertilizer in advance, raise seedlings, plant, we must pay attention to watering, pay attention to fertilization, ensure enough nutrients, pay attention to the prevention and control of insect pests, and pay attention to temperature.

The land should be fertile, the sun should be sufficient, the land can be turned over before planting, and the papaya seeds can be soaked in water for about five hours before being sprinkled into the field.

Choose very fertile soil, but also pay attention to the time period of planting, but also pay attention to the temperature and climate of the planting, and pay attention to the method of management.

Physical characteristics like high temperature and humid tropical climate, not cold-tolerant, frost that is withered, because the root system is shallow, avoid strong winds, avoid stagnant water. The geothermal requirements are not strict, hills and mountains can be cultivated, and the adaptability to the soil is strong, but it is better to grow in loose and fertile sandy loam or loam.

1. Soil: Xuan papaya has strong adaptability and low requirements for soil, and can grow in general soil. However, loose, fertile, well-drained weakly acidic to neutral loam soils are best for planting.

2. Fertilization: Wild papaya is used as basal fertilizer with organic fertilizer such as soil and manure in the early stage, and foliar fertilizer such as boron fertilizer and foliar fertilizer is applied in the later stage of flowering.

3. Watering: Wild papaya needs a lot of water during the growth process, and timely watering can accelerate the growth of wild papaya and reduce the number of watering.

4. Temperature: Wild papaya is not cold-tolerant and is easily frozen. It is suitable for living in high temperature environments, and the optimal temperature range is 22-25.

Fifth, the only way to prevent and control pests and diseases:

Wild marigold is very resistant and generally does not appear as long as it is fertilized correctly and pruned on time. Common diseases include leaf blight, dry rot, etc. Leaf blight, ** blight, branch bend, etc.

Dry rot can be sprayed with 1:2:200 Bordeaux liquid; Skin blight:

Scrape off the diseased area and smoke it with sulfur to cure pests and diseases or apply it with a stone sulfur mixture. Insecticides such as dimethoate can be used to control pests such as longhorn beetles, aphids, etc., and traps can also be used to control pests.

Papaya tree. It is a very useful plant, but it needs special cultivation and maintenance to grow healthy and lush. Below I will go into detail about the planting and maintenance methods of papaya trees.

First, the planting method.

1.Site selection: Papaya trees prefer a warm, moist, and well-ventilated environment, so they choose a place facing the sun, far from the river, and high terrain for planting.

2.Soil: Papaya trees need fertile, well-drained soil, which can be filled with the right amount of organic fertilizer.

3.Seeds: Seeds can be removed from ripe papaya fruits and soaked in warm water until germination occurs.

4.Transplanting: Transplant the sprouted papaya seedlings into the prepared soil, taking care not to over-compact the soil so that the roots of the tree can grow smoothly.

Second, the maintenance method.

1.Irrigation: Papaya trees need enough water to grow healthy, especially during the dry season.

2.Fertilization: Papaya trees need sufficient nutrients to grow healthily, and an appropriate amount of organic fertilizer or compound fertilizer can be applied under the papaya tree.

3.Pruning: Papaya trees need to be pruned regularly to keep the tree shape and canopy neat. Pruning can be chosen in the fall, keeping 3-4 trunks and a moderate amount of shoots per year.

4.Pest control: Papaya trees are susceptible to some insect pests, such as aphids, whiteflies, etc., and can choose to use ecological pesticides for control.

5.Prevention and control of disease and land rolling: Papaya trees will also be affected by some diseases, such as anthracnose, root rot, etc., and can choose to use pesticides for prevention and control.

In short, the planting and maintenance of papaya trees need to pay attention to many factors, and only by comprehensively considering and carefully implementing various measures can we ensure the healthy growth and high yield of papaya trees.

Papaya planting technology and cultivation management are as follows:

1. Planting density: papaya can be planted in spring or autumn, and can be dried at 70 80cm on the ground after planting. It is suitable for dense planting, the row spacing of plants in mountainous and hilly thin land is generally 2 3 meters, the row spacing of alpine plants with good fertilizer and water is 3 4 meters, and the row spacing of plants is 5 5 meters when it is sold between grain and vegetables.

2. Water and fertilizer treatment: a small amount of basal fertilizer is applied in autumn in papaya orchards, and the amount of basal fertilizer applied in the field accounts for about 70% of the total amount of fertilizer applied throughout the year. Top dressing should be based on the development consequences of papaya trees and continue during the maximum fertilizer effective period.

Pre-flowering, post-flowering, and fruit expansion fertilizers should be applied to trees in full fruiting stage in real time, and the amount of fertilizer applied to young trees should be reduced.

3. Flower grandchildren talk about fruit management: from the first year to the second year of papaya, the flowers will be picked at any time. In the spring of the third year, strengthen the management, chase the pre-flowering fertilizer, fruit expansion fertilizer, and autumn fertilizer. The self-pollination and fruit setting rate are high, and the fruit setting rate is easy to be released, and the fruit setting rate can be improved by bees or artificial pollination during the flowering period.

Papaya pest control is as follows:

1) Disease: The plant is prone to disease in the young leaf stage, the important one is leaf blight, and the young leaves show polygonal freckles after the disease. The young leaves are scattered soon after contracting the disease.

Prevention and control methods: 1:1 before or early onset of disease

1500 Bordeaux liquid spraying control.

2) Insect pests: Insect pests occur frequently in the flowering and fruiting stages. Important beneficial insects are aphids.

Spray with 1:1:500 dimethoate emulsion; Heartworms, longhorn beetles, sprayed with pesticides such as rotenol.

At the same time, it is necessary to strengthen diligent introspection and immediately accept prevention and control methods once invented. There are wood-boring insects as a pest, if the invention of the tree body, the tree has wood-boring insects, you can spray them with tea dry water, or use a thin steel wire to hook out the borers.

Seed harvesting: August to September, when the exocarp is greenish-yellow, it can be harvested. Cut open the fresh fruits harvested, take out the seeds to cool and dry, and select the seeds with full grains; It can also be done in November after the peel is dried, the fruit is peeled, the seeds are removed, and the seeds are retained.

Seedling: Papaya seedlings are mainly sown and reproduced, and various methods such as stripping, cuttings and grafting can also be used. Before sowing seedlings, soak them in an appropriate concentration of soda solution for 6-8 hours, scoop up and drain them after soaking, mix with sand, and sow them in the seedbed together according to the row spacing of 20 cm.

After the seedlings emerge, the soil should be cultivated and moisturized. When 2-3 leaves are grown, reduce watering to promote deep rooting and prevent overgrowth. Thin fertilizer can be applied at the 4-leaf stage, and seedlings can be refined at the 5-leaf stage.

The standard of strong seedlings is: short and strong, with complete leaves, thick green, and no diseases and pests. At the seedling stage, we should pull weeds, loosen the soil, apply fertilizer and water in time.

In the spring of the second year, the bed is left or planted in the field. Sowing can be done in February and November every year in Longnan area. Spring sowing:

2 sown in April, planted in 4 May, seedling period 50 70 days; Winter sowing: sowing from mid-October to early December, seedling period 120-130 days. In winter sowing, attention should be paid to the use of cold protection and warmth measures.

Afforestation: After 2-3 years of seedling cultivation, the seedlings will be planted in the nursery when the seedling height is above lm. There are two main planting methods: autumn planting and spring planting.

The climate in Longnan is warm, and it can be planted in spring or autumn. Spring planting is carried out before the seedlings germinate. The planting density of seedlings is generally 3 meters to 4 meters in mountainous areas and 4 meters to 5 meters in Sichuan dam land.

Pest control: There are more than 10 kinds of papaya diseases that have been reported, among which the damage is more serious, such as ring pattern disease, anthracnose, gray mold, rust, leaf blight, dry rot, brown spot and so on.

Papaya tree: Papaya tree, also known as pear, dragon tree, etc., is divided into many varieties such as wrinkled papaya, Xuan papaya, etc., but it is completely different from the papaya, please do not confuse, it belongs to deciduous trees. It can be planted as a green seedling, and the whole plant is used as medicine, and the economic value is very high. The whole plant is medicinalized, and the papaya tree is also a commonly used tree in landscaping.

It is commonly cultivated in the eastern, central and southern parts of China. Mainly distributed in Jiangsu, Henan, Shandong, Anhui, Zhejiang, Hebei, Jiangxi and other places. Very nutritious.

The whole papaya tree can be used as medicine, and it is also a commonly used ornamental tree species in landscaping, and the production areas are Shandong, Anhui, Jiangsu, Zhejiang, and Henan. The flowering period is April, and the fruiting period is from September to October.

Classification of varieties of papaya trees:

Crumpled papaya. Hairy papaya.

Glossy papaya Tibetan papaya.