How to manage sugar tangerines after harvesting? These key points you need to master
Every year, as the end of the year approaches, it is time to harvest and market sugar tangerines. Now that the end of the year has passed, the sugar tangerines have already been harvested, and at this point post-harvest orchard management must begin, as it affects the yield of the coming year. So how should sugar tangerines be managed after harvesting? Let's take a look together.
1. Spraying pesticide to clean the orchard
Low-temperature environments are not conducive to the growth of pests and diseases. At this time, the pests and diseases have poor vitality and mostly gather together, making them convenient to control, and the effect is at its best. Before overwintering, there are many pests and diseases, and according to how these pests and diseases occur, effective pesticides should be selected for control. Overwintering pests and diseases have strong stress resistance, so pesticides with strong killing power, quick action and low toxicity should be used. According to the variety of sugar tangerine, tree age, climatic conditions and the occurrence of pests and diseases, select the appropriate pesticide, spray it in suitable weather, spray the branches and leaves evenly, and at the same time combine it with foliar fertilizer spraying to quickly maintain nutrients and restore tree vigor.
2. Shaping and pruning
After the first pesticide spraying, before spring budding, the plants should be pruned. During pruning, diseased and pest-infested branches and leaves as well as diseased fruits should be pruned off together. At the same time, the area around the orchard should be cleaned thoroughly. After sweeping the ground clean, take everything out of the orchard and burn it to eliminate the overwintering sites of pests and diseases and reduce sources of pests and diseases. After pruning, apply healing agent in time to seal the wounds and protect them from invasion by pathogens. Weeds and parasitic plants should be completely removed. Use large-branch pruning techniques to lower the height of the canopy, thin out overly dense or crossing large branches, and create a tree shape with good ventilation and light penetration and three-dimensional fruiting.
3. Topdressing
The winter fertilizer applied before and after fruit harvest is also called postpartum fertilizer. It can help the plants restore tree vigor as quickly as possible, has an excellent leaf-preserving effect, and can also extend leaf lifespan to avoid early defoliation, ensuring stable and high yields the following year. After fruit harvest, combine spraying pesticide to clean the orchard with spraying foliar fertilizer to supplement nutrients to the plants. This can improve the stress resistance of the plants and promote flower bud differentiation. Winter fertilizer is mainly organic fertilizer, paired with an appropriate amount of compound fertilizer and micronutrient fertilizer. It can raise ground temperature, help the root system overwinter smoothly, and at the same time help the accumulation of nutrients in the plants, which is beneficial to flower bud differentiation the following year. After fruit harvest, apply quick-acting water-soluble fertilizer as a drench, mainly water-soluble fertilizer rich in humic acid, amino acids and high potassium, and apply it as a drench 1-2 times before flowering.
The above is an introduction to the key points for managing sugar tangerines after harvesting. We hope it can help you. To learn more related knowledge, please follow us.