Planting techniques of grapefruit (Wendan) trees

Grapefruit tree, also known as "Wendan", belongs to the citrus plant of Rutaceae. Its fruit is fragrant, sour and sweet, has the effect of beauty and beauty, has rich nutritional value, and is loved by the middle-aged and elderly. So, what are the planting techniques for grapefruit trees? What are the precautions? Let's get to know it.

First, planting time

Pomelo trees can be planted in spring and autumn, and autumn is the best. Grapefruit planted in autumn can survive the winter smoothly. Autumn planting is best from mid-September to mid-October, while spring planting is generally after the Beginning of Spring.

II. Planting techniques

1. Colonization

① density: the root of pomelo tree is thick and vigorous. The average planting per mu is about 40 plants. The plant distance is 4x4 meters or 4x5 meters, if the plant is dwarfed, the density can be increased appropriately. In addition, the selected place for grapefruit tree planting requires a deep and fertile soil layer and rich water resources.

② method: dig a large pit of 1x1 meters when planting, apply sufficient phosphate fertilizer and head base fertilizer, fill the soil to 20 cm from the ground, put grapefruit seedlings into the pit, compact the soil at the rhizome by hand, and fill more soil into the pit. It should be noted that after planting, the nest plate needs to raise the ground about 20 cm, and then irrigate a sufficient amount of water.

2. Farming

① deep digging to improve soil

Turn deeply to improve the soil, mature the soil, and gradually expand. Digging circular ditches outside the seedlings, ploughing deeply in different years, and applying appropriate amount of fertilizer to replenish soil fertility.

Ploughing soil in ②

Ploughing more than 3 times a year, combined with weeding and fertilization. In places with a small slope, the soil is cultivated once every three years. In places with large slope and easy loss of soil fertility, the soil needs to be cultivated every other year to improve the fruit rate.

3. Fertilization

When grapefruit seedlings are first planted, they should be fertilized frequently, with less amount at one time, and 5-6 times a year. Grapefruit trees like nitrogen fertilizer, phosphorus and potassium fertilizer, can also be fertilized with human and animal feces, and add appropriate amount of urea.

4. Irrigation

Pomelo is an evergreen plant, because of its large leaves and fruit, it consumes a lot of water and requires high water content. A large amount of irrigation is needed to replenish water in the germination period, flowering stage and fruiting stage of pomelo. At the same time, the soil can not accumulate water, the drainage requirement is high, and the stagnant water needs to be discharged in time in the rainy season.

5. Pruning branches and leaves

According to the growth characteristics of grapefruit tree, the height of the trunk should be about half a meter, and the interval between the main branches is about 30 centimeters. A total of 5-6 main branches are cultivated. Trimming grapefruit trees should follow the principle of "top heavy, square light, periphery heavy, inner light". That is, in the place where the branches and leaves are dense around the crown, the pruning is sparse, the top branches are heavily pruned, and the inner branches are trimmed lightly, so that the internal light of the crown is good, and the fruit is many and the quality is good. Generally, the slender leafless branches on the 3-4-year-old side branches inside the crown are excellent fruiting mother branches and must be preserved.

Matters needing attention

When most of the buds are the size of match heads, the flowers are thinned, the spikes, tails and weak buds are removed when the buds are white, and only 4-5 strong buds are left in the middle. After the second physiological fruit drop, the abnormal fruit is removed, and the fruit of diseases and insect pests is retained according to the ratio of leaf to fruit at about 60-70:1.

The above is the grapefruit planting technology summarized by Tuliu.com for you. Do you understand?