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Cultivation methods and precautions of guava

Saul Goodman
2020-06-30 16:20:30
Temperature: guava is not resistant to freezing, so the plant can grow normally only when the maintenance temperature is controlled above 15 ℃; watering: if the annual rainfall is more than 1000mm, there is no need to water; if the soil has been in a dry state, it needs to be watered once a week; fertilization: in addition to the base fertilizer mixed in the soil, it needs to be fertilized once a month; lighting: it prefers Sunshine, can receive all day sunshine.

I. maintenance method

1. Temperature: if the temperature is below zero, the plant will freeze to death. Therefore, the maintenance temperature should be a little higher, the lowest maintenance temperature is 15 degrees, the temperature will grow when it reaches 15 degrees, the best maintenance temperature is between 20 degrees and 28 degrees, and the plant growth state at this temperature is the best.

2. Watering: if it is not the dry season, no watering is needed. If the continuous drought lasts for more than two months, it needs to be supplemented manually. Otherwise, the output will be affected. When watering, observe the state of the soil first. Only when the soil is completely dry, watering is needed. Generally, watering once a week is needed.

3. Fertilization: the way of applying fertilizer to it should be based on thin fertilizer and multi application. It is not suitable for applying concentrated fertilizer, which is easy to burn roots. Fertilization can use compound fertilizer, can also use human excrement and urine, fertilization frequency can be maintained once a month.

4. Light: it can't grow without light. Sufficient light is good for its growth. It can promote its growth and increase its output. If it can't do the whole day's sunshine, the daily light should be at least five hours.

2. Cultivation techniques

1. Propagation: it can be propagated by grafting. The breeding time is in winter and spring. When the seedlings grow to 0.7cm in diameter, they can be grafted. In the first half month of scion collection, the leaves are picked, and when the buds are about to sprout, the effect is the best. The rootstock is stronger, indicating that the accumulated nutrients are more, which is conducive to success. It is usually untied one month after budding, and then the rootstock will be cut off after the buds are more active, and can be transplanted and planted one year later.

2. Pruning: after the fruit is harvested, pruning should be carried out. First, prune the branches that are too prosperous. Second, prune the branches that are more than two centimeters long. Finally, cut the general branches a little shorter.

3. Problem diagnosis

1. Insect damage: aphid is its number one natural enemy. If it is found, it needs to be treated with chlorpyrine.

2. Disease: the plant is easy to be infected with canker and bacterial wilt. If found, it can be treated with Bordeaux spray.

4. Other issues

1. Edible: it is edible.

2. Other values: besides eating, it can also be used as medicine and has the function of hemostasis.

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