Soursop is not only a delicious fruit but also rich in nutrients, which has the effect of supporting the treatment of a number of diseases. The selling price of the fruit ranges from 25,000 – 30,000 VND/kg, in addition, when dried or made tea, the price is multiplied by 10 times. With high economic value, soursop is really attractive to growers. In this post, we will share Soursop cultivation technique simple, bountiful harvest. We invite you to follow.
Growing conditions of soursop
Soursop, also known as soursop, na gai, na Siam. The growing conditions for this cultivar are as follows:
Temperature: from 25 to 32 degrees Celsius. Can’t stand cold weather. However, na gai grows well when there is a lot of rain and high humidity.
Light: As a light-loving plant, plants that receive a lot of sunlight will give high yields, good resistance to pests and diseases.
Soil: Adaptable to many different types of soil but has poor tolerance to waterlogging. The pH is from 4.5 to 6.5. Rootstock grafted seedlings can be planted and grown in flooded, alum and saline places.
Technique of planting soursop
Choose varieties of soursop
Breeding work in our country has not been widely developed. Therefore, to start growing soursop, people can choose seeds from the mother tree with the following characteristics: giving many fruits, beautiful shape, regular fruit, high percentage of rice, fragrant segments. Then choose an old fruit to get seeds for seed germination.
In addition to seeding, people can also buy grafted plants or plant branches. However, it is necessary to choose good plants, no pests and diseases, and the leaves are not crushed.
If the soil is salty, the water is often high and waterlogged, the rootstock of the bowl should be grafted. Thus, the plant will adapt well to alkaline, drought, and waterlogged soils. At the same time, this method also helps the tree to grow well, give more fruit, and take longer to collect fruit.
Soursop planting season
People in the West can grow soursop all year round, but should plant it at the beginning of the rainy season from April to May to save water for irrigation in the early stages.
Planting density of soursop
Depending on the specificity and area of the garden, people can grow soursop crops intercropped or specialized.
Intercropping: can be planted on both sides of the ditch where there is a lot of light and depending on the main tree in the garden.
Specialized cultivation: planting in rows or planting in the style of crocodile fangs: 3m x 3m. Average from 750 to 1,000 trees/ha.
Prepare the soil to plant soursop
Soursop can be adapted to many different types of soil such as alkaline soil, alluvial riverside, alluvial soil, but people need to pay attention to the pH from 4.5 to 6.5.
The planting hole needs to be loosened, forming a mound of 40-60cm wide and 25-30cm high.
Prepare the soil 5-7 days in advance to have time to dry and kill pests. At the same time, apply lime powder and fertilize with 2 – 3 kg manure + 200g phosphate fertilizer per hole to improve and add nutrients to the soil.
How to grow soursop
Put the potted rootstock in the lake, then bury the soil around it, then make sure it’s soaked with water.
For nursery plants with pots, gently remove the pot, place in the center of the base, fill the surrounding soil to form a 10cm high mound. Each year, tissue accretion will be carried out according to the radius of the foliage.
Taking care of the soursop tree
Use: 10 – 15 kg of rotting manure + 0.5 kg of fused phosphate + 0.5 kg of powdered lime to fertilize each planting hole.
People can use synthetic fertilizer NPK 10 – 10 – 10 or NPK 16 – 16 – 8 + 10kg per year of rotting manure to fertilize plants for 3 years. In the following years, each year, add 0.3kg of NPK synthetic fertilizer. Fertilizing the 9th year stops at that level, does not increase anymore.
When fertilizing, farmers divide it into 2-3 times: After harvesting (at the end of the rainy season) and when the tree is growing fruit (at the beginning and at the end of the rainy season). In addition, at the beginning of the rainy season, people add 1kg of fused phosphate fertilizer to each tree. At the end of the rainy season, apply 0.2kg of potassium/plant.
Although custard apple lives at high temperatures, it has good drought tolerance, but in order to produce a lot of fruit, it needs to be watered with enough water. If planted at the beginning of the rainy season, people do not need to water too much. In the dry season, water once a day when the tree has not yet produced fruit.
Note that when the tree is carrying young fruit, it needs to be watered enough, if there is a lack of water, the tree will lose leaves and fruit, small fruit. Time of fruiting, if in the dry season, water 2-3 times/week.
If growing soursop root grafted bowl, people can use water at a salinity of less than 11‰ to irrigate the plants. In general, this is a fairly easy fruit tree.
Preventing harmful diseases
This disease is caused by fungi and nematodes. Diseased trees will quickly weaken, yellow leaves, drop leaves, trees will die gradually. The roots are necrotic. This disease attacks from the roots to the base causing the tree to die from the inside out. With trees that have died or fallen fruit due to disease, people should dig anise and bury them.
Anthracnose is caused by the fungus Colletotrichum gloeosporioides. Infected plants will have soft rot on the branches, which will spread to the fruit. This disease is especially contagious during the rainy season.
To prevent diseases, people need to prune trees to create airiness for good photosynthesis. Dead trees and fallen fruit should be destroyed to avoid spreading. Can be buried or burned.
Aphids, mealybugs, leaf borers
In addition, there are some types of planthoppers, aphids, and other pests that suck sap from the fruit, affecting yield and creating opportunities for pathogens to develop.
If the correct planting and care techniques are applied, the time from pollination to fruit collection will take about 3-4 months.
Cut off the top stem, harvest gently to avoid crushing the fruit.
Properly implementing the above techniques of growing soursop, farmers will have an orchard with outstanding yield, large and uniform fruit for high economic efficiency. Wish you success with the model of growing soursop trees that khomay3a.com provides.