The key points of winter science management technology in citrus gardens must be known!

Early application of base fertilizer

It is beneficial to improve the quality of flower buds, increase the nutrition of tree body, and improve the ability of anti-freezing. It is mainly based on organic fertilizer, combined with special fertilizer for fruit trees, and is applied by annular groove or groove method.

Winter pruning

Most of the orchards are planted in 2*1.5 rows, and the pruning is mainly based on small fiber repair. Therefore, there are many branches, many parasitic branches, large orchard density, and the canopy is sealed, which is not conducive to ventilation and light and stereoscopic results. For the permanent tree saw, in addition to the multi-main branch, retreat the weak branch group, properly open the skylight, and implement heavy retraction or thinning on the elimination tree. The results of the Xiaonian tree are short-cut, reducing the amount of flowers, improving the quality of flowers, and balancing the years. Lightly cut or not cut the big year tree, and see the flower trimming in the coming year.

Winter garden

It can eliminate wintering pests and diseases and reduce the number of insects in the second year. It is mainly to cut off the dead branches of the pests and diseases, scrape the old trunks of the trunks, pick up the branches and leaves in the garden, remove the weeds in the garden, and spray 45% crystal sulphur mixture 400. -500 times, the orchard is more harmful to the orchard with oil oil emulsion 100 times + dying 800 times, even spray 2-3 times, while the ground lime, 50-70kg per 667 square meters, can be disinfected, sterilized, Reduce soil acidity and improve fruit quality.

Cold and frost resistant

Freezing damage has a great influence on the citrus tree and the yield in the coming year. It can be prevented by dressing the trunk, covering the canopy, or whitening the trunk. The whitening agent can prevent freezing and prevent pests and diseases. The formula is: quicklime 1.5kg, stone sulfur Mix 0.3kg, salt 0.2kg, animal oil a little, clean water 5kg, do not go down after coating, and do not bind into a group is appropriate.