How to plant to improve the sweetness of Sanhong pomelo?

1. Establishment of pomelo orchard.

Choose to build a garden in a sandy loam land belt that is sheltered from the wind and sun, rich in water, deep soil layer, and has a contour terrace with a plant row spacing of 3 meters and 3 meters, and the planting method is better than a triangle. As long as the new shoots are old and mature, pomelo can be planted all year round.

2. Select strong seedlings.

The grafted seedlings with developed root system, robust growth and annual growth are selected for planting, and the seedlings can quickly recover their growth and the canopy formation is also faster under better management conditions.

3. Expand the hole and change the soil to improve fertility.

Important measures to improve site conditions are the basis for early fruiting, high quality and high yield. Hole expansion and soil improvement generally start in the second year after planting, and the best effect is completed in the third year. The specific method is to excavate a ditch 60 70 cm deep and 40 50 cm wide on both sides according to symmetry under the crown drip line, fill in a load of green manure and fire soil, a kilogram of calcium, magnesium and phosphorus fertilizer, an appropriate amount of lime and topsoil, apply it in layers, and compact it to improve the soil.

4. Reasonable pruning and correct ring stripping (cutting).

Pruning principle: use thinning branches, less pruning of the outer branches of the canopy, and more pruning of the inner branches.

Pruning time: Young pomelo trees are generally pruned in 2 times, namely summer pruning and winter pruning; The fruiting pomelo tree is generally pruned in 3 times, namely spring pruning, summer pruning and winter pruning, spring pruning in February and March, summer pruning in May and July, and winter pruning in half a month after fruit picking, that is, 10 November. Trimming Method:

Instead of using a "one-size-fits-all" approach, focus on thinning the peripheral branches, and use the "open skylight" pruning method for dense canopies. This method can effectively control the canopy, promote the germination of inner branches, and avoid the loss of yield due to heavy pruning. The inner branches should be cut off from redundant branches, dead branches, diseased branches and weak branches.

For pomelo trees that do not bloom or have little flowering, the method of ring peeling and circumferential cutting is adopted in late September. Ring stripping (cutting) is a method of ring stripping (peeling 1 cm wide) or circumferential cutting on the main trunk or main branches with a diameter of more than 6 cm, down to the xylem.

After treatment, the wound was treated with 20ppm of 2,4-d 800 times methyl tobuzin, which would not have an adverse effect on tree potential and yield. The use of ring stripping (cutting) method can inhibit vegetative growth, promote flower bud differentiation, increase flower quantity, and ensure yield.

5. Scientific fertilization to improve quality.

Fertilization method: the use of annular furrow application, the number of fertilization in accordance with the requirements of "basal fertilizer autumn application, germination fertilizer cautious application, fruit preservation, fruit fertilizer combination" requirements for fertilization 3 4 times a year. Organic fertilizer is the main fertilizer, supplemented by inorganic fertilizer, and P and K fertilizer are applied more.

Germination fertilizer plant pig manure 20 30 kg, applied at the end of February to early March, fruit fertilizer to root top dressing, spray urea potassium dihydrogen phosphate, strong fruit fertilizer plant pig manure 20 40 kg, at the end of June to early July application, fruit fertilizer plant manure 40 60 kg urea 200 grams of phosphate fertilizer, before and after fruit picking, generally in December.

6. Reasonable fruit thinning, bagging First of all, the stunted deformed fruits, small fruits and diseased insect fruits are thinned, and the amount of hanging fruit is generally based on the leaf-fruit ratio (160 200): 1 is better. After thinning the fruit and setting the fruit, bag it when the young fruit grows to a single fruit weight of 100 150 grams and the fruit diameter is about 5 cm.

If you have any questions, you can ask me, it's good to use organic fertilizer.

Fujian Pinghe Sanhong pomelo is produced from the bud transformation of Guanxi red-fleshed pomelo. In addition to having the characteristics of red flesh pomelo.

In addition, the outer skin of the fruit is pale pink under the corresponding leafshade and the sponge layer under the peel is pink, the flesh is rose-red, and the nutritional elements are higher than that of the red-fleshed pomelo. It is early maturing, high yield and excellent quality.

Its main disadvantages are as follows:

Peel color change requires the use of a three-layer blackout bag.

The fruit time is short, and the red pigment is easy to settle when it is fresh.

If left for a long time, the skin will be dark red.

"Sanhong Honey Pomelo" is a very ideal high-quality fruit for nutrition and health care. She inherited her parents' "Guanxi pomelo."

Nutritional and health benefits Grapefruit juice contains appropriate levels of whole sugars and titratable acids, is rich in a variety of microbiotics, and contains magnesium.

Calcium and copper are better than other fruits with more than 10 kinds of mineral nutrients that are beneficial to the human body. It has the ability to regulate the human body.

Metabolism, lowering blood pressure and comforting, expectorant and moisturizing the lungs, eliminating food and sobering up alcohol, diuretic and laxative, lowering blood lipids, blood sugar and fire.

Anti-inflammatory and other nutritional health functions. Moreover, the health nutrition is unique, rich in high antioxidant power can promote and protect the front.

Lycopene, rich in antioxidants, promotes and protects microvascular circulation, maintains** and mucosal health.

Kang and other functions of carotene.

Three red pomelo 5 years fruit. However, there is a growth agent, so it is much faster but the taste is not very good, now 5 years of special three red pomelo (red in red pomelo (red skin red flesh pomelo)), red in red pomelo (red skin red flesh pomelo) in addition to the characteristics of red flesh pomelo, the outer skin of the fruit is pale pink under the corresponding leaf shade and the sponge layer under the peel is pink, the flesh is rose red, the nutritional elements are higher than the red flesh pomelo, the latest variety of Guanxi red skin red flesh pomelo has high stability, the fruit is large and thin, the flesh is seedless, the color is bright, the juice is soft, Sweet and slightly sour. It is early ripening, high yield, excellent quality three red pomelo "pomelo fruit inverted oval, like coconut fruit, a single fruit weight between 750 1500 grams, no fruit.

Seeds, the flesh is tender and crisp purple red, the juice cells are juicy and slag, the taste is refreshing and sweet, the skin is thin and smooth, and the endothelial layer (sponge.

layer) pink, the fruit is specially bagged and the peel is red and dazzling when the fruit is ripe, which can be described as a handsome and beautiful girl in the pomelo, so it gives the reputation of "three red pomelo".