How can apples color up quickly after the bags are removed?
Apples are a very common fruit in our daily lives, and they are grown on a very large area in our country. When growing apples, bagging is an indispensable task to ensure the quality and yield of the apples. And after bagging, you also need to pay attention to removing the bags in time, but many people find after removing the bags that the apples do not color very well. So how can apples color up quickly after the bags are removed? Let's take a look below!
1. Autumn pruning
After apples are bagged, under normal circumstances, the time for removing the bags is generally in autumn. Therefore, after removing the bags from the apples, we should pay attention to doing a good job of autumn pruning. Autumn pruning is mainly to improve the light penetration inside the apple tree canopy and increase light for the fruit, because light has a very large effect on fruit coloring. The main targets of autumn pruning are water sprouts, competing branches, and some long fruit-bearing branches under the canopy. Ensure that every branch, leaf, and fruit of the apple tree can receive light evenly, or you can also use the branch-tying method to open up gaps, which can likewise improve lighting.
2. Leaf removal
After removing the bags, we also need to remove leaves from the fruit trees, mainly to remove some leaves that block light from reaching the fruit. When the bags are first being removed, remove the rosette leaves next to the fruit, and then after the bag removal work is finished, remove the leaves within about 8 cm around the fruit. When removing leaves, pay attention to doing it at around nine in the morning. Do not do it at noon on a sunny day, to avoid sunburn. First remove the leaves close to the fruit, and about a week later, remove the light-blocking leaves around the fruit, as well as diseased, pest-damaged, and old yellow leaves. However, it is best to keep the functional leaves to avoid reducing the photosynthetic efficiency of the fruit tree due to excessive leaf removal.
3. Fruit turning
Turning the fruit after leaf removal is mainly to ensure that every fruit can receive light evenly. For the fruit, it is a key measure to ensure that the shaded side can also receive sufficient light and color well. About a week after bag removal, when the coloring rate of the sun-facing side of the fruit reaches about 70%, turn the fruit. When turning the fruit, rotate it 90 degrees or 180 degrees. Turn the shaded side to the sunny side to ensure the shaded side also receives sufficient light. When turning the fruit, pay attention to the force used; do not use too much force, to avoid the fruit dropping off because of it. It is best to turn the fruit twice. If it cannot be fixed in place after turning, then you can use transparent tape to fix it.
4. Water and fertilizer management
Before removing the bags from the apples, we should do a good job of watering. This is because after bag removal, watering is not allowed; if it is too dry, then only small drip irrigation can be used. In many cases, poor coloring after apple bag removal is caused by flood irrigation after bag removal, so everyone should pay much attention to this. Then there is the need to control the amount of fertilizer applied, especially the basic elements such as nitrogen, phosphorus, and potassium. If these three elements are excessive, they are all major causes of poor fruit coloring, so when fertilizing, we must strictly control the amount applied, especially potassium fertilizer. Do not apply potassium fertilizer without limit just because the orchard is severely deficient in potassium.
The above is a brief introduction to how apples can color up quickly after the bags are removed. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!