Key points of fruit and flower management in mango orchard

(1) the use of plant growth regulators:

Plant growth regulators must be used in accordance with the prescribed concentration, method and time of use, and plant growth regulators registered and produced without state approval should not be used.

As a plant growth regulator for controlling shoots and promoting flowers, the recommended concentration is ethephon 200mg / L and 300mg / L. 15% paclobutrazol per square meter canopy soil application 6 8 grams, foliar spraying 800 million 1000 mg / L.

As a plant growth regulator for flower and fruit protection, the recommended concentration is gibberellin 50 mg / L and naphthylacetic acid 40 mg / L.

Neutral detergent and surfactant should be added to improve the efficacy of foliar spraying of plant growth regulators.

The use of plant growth regulators should be stopped one month before harvest.

(2) pruning and thinning flowers and fruits:

For trees with a flowering rate of more than 80% of the final shoots, 70% of the terminal shoot-bearing inflorescences were retained, the rest of the inflorescences were removed from the base, and the lateral flower branches of the base 1, 3, 1, and 2 were cut off from the larger inflorescences.

From the flowering stage to the fruit development stage, cut off the flower branches that do not hang fruit and the branches and leaves that hinder the fruit growth, and cut off the spring and summer shoots extracted in the young fruit stage.

Within 15-30 days after flowering, 2-4 fruits were retained in each inflorescence, the deformed fruit, disease and insect fruit and over-dense fruit were removed, and the number of empty bags after bagging was reduced.