Practical methods for fast coloring of apples after bag removal
Apple is a very common fruit in our daily life, and it is 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 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 bag removal is generally in autumn. Therefore, after removing the bags from the apples, we should pay attention to doing a good job of autumn pruning. The main purpose in autumn is to improve the ventilation and light penetration inside the apple tree canopy and increase light exposure for the fruit, because light has a very large influence on fruit coloring. The main targets of autumn pruning are water sprouts, competing branches, and some long fruiting 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 light exposure.
2. Leaf removal
After bag removal, we also need to remove leaves from the fruit trees, mainly to remove some leaves that block the fruit from receiving light. When the bags are first being put on, remove the rosette leaves close 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, note that it should be done at around nine in the morning. Do not do it at noon on a sunny day, to avoid sunburn. After first removing the leaves clinging to the fruit, 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 a decline in the tree's photosynthetic efficiency caused by removing too many leaves.
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 its 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%, carry out fruit turning. 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; it must not be too rough, to avoid the fruit falling off because of it. It is best to turn the fruit twice. If it cannot be fixed after turning, then transparent tape can be used to fix it.
4. Water and fertilizer management
Before removing the bags from the apples, we should do a good job of watering. Because after bag removal, watering is not allowed; if it is too dry, then only small amounts of 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 close attention. 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 main causes of poor fruit coloring, so when fertilizing, we must strictly control the amount applied, especially potassium fertilizer. Do not apply potassium fertilizer without restriction just because the orchard is severely deficient in potassium.
The above is a brief introduction to how to make apples color quickly after bag removal. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!