Who can talk about how to fertilize potted pomegranate trees?

Some management experiences of potted pomegranate:

1. Fertilizer and water management.

Fertilize potted pomegranate after germination, and generally apply diluted organic fertilizer solution. Apply .2% urea solution once every 1 days and twice in May and June. In the later stage of fruit growth, .3% potassium dihydrogen phosphate solution was applied twice in addition to organic fertilizer. Attention should be paid to the weather during the growth period. When the temperature is high and the weather is sunny, water the basin soil in time after it is dry. Care should be taken not to pour water on the flowers during flowering period, so as not to affect the fruit setting. In addition, measures should be taken to avoid rain during flowering period in rainy days.

2. Annular peeling at flowering stage.

Generally, annular peeling is carried out in early May, which can temporarily block the downward transportation of photosynthetic organic nutrients and improve the fruit setting rate.

3. Artificial pollination.

Pollen from the same flower of pomegranate generally does not bear fruit after pollination to the pistil of the same flower. Pollen from different flowers and different plants has a higher fruit-setting rate, and the fruit-setting rate of pollination among varieties is higher. Artificial pollination at flowering stage can improve fruit setting rate. The simple method is to use a brush to stick the pollen that is not spread soon after flowering on the brush tip to artificially pollinate the tubular flowers of other different potted flowers just after opening.

If there are many potted pomegranates and the flowers are large, you can pick the bell-shaped flowers that are in bud, take out the anthers, and dry them in the shade at about 22℃. After the anthers produce pollen, separate the pollen from the pollen sac with a feather, and store the pollen in the refrigerator after being dried in the shade in the dark and dry conditions. When pollinating, put the pollen in a small bottle, dip it with the tip of a hair pen and then tap it on the stigma of the newly blooming tubular flower.

4. Spray hormones at flowering stage.

spraying 4×1-5-5×1-5 gibberellin or 2×1-5-4×1-5 naphthalene acetic acid solution at flowering stage can also improve the fruit setting rate.

5, thinning flowers and fruits.

Pomegranate has a large amount of flowers, which can bloom for a long time from May. Pomegranate bell-shaped flowers can't bear fruit, only a part of tubular flowers can bear fruit, and bell-shaped flowers account for a large proportion. Therefore, some bell-shaped flowers are reserved before flowering except for ornamental needs, and the rest bell-shaped flowers can be thinned in bud stage in order to save nutrients (some can be used to take anthers and dry pollen). The tubular flowers of pomegranate generally bloom in three stages: early, middle and late.

early flowers should be kept to grow into big fruits after fruit setting. If the fruit setting rate of early flowers is low, they should be kept without thinning. Late flowers generally have small fruits and poor quality. If the fruit setting rate of early and middle flowers is low and there are few fruits, some fruits with high quality can be properly kept and the rest can be thinned.

6, pruning.

The mixed buds of pomegranate are planted at the top or near the top of strong short branches, and these branches should be kept during dormancy pruning, and they should not be chopped or thinned. When pruning long branches, they can keep 2-3 buds at the base, and the fruiting mother branches can grow when the conditions are good after germination.

Pruning in the growth period mainly adopts measures such as thinning out over dense branches and slender branches after flowering, and coring long branches, which is beneficial to the formation of flower buds and the improvement of fruit setting rate.