How to manage apples after bagging? These key points you need to master
Apple is a fruit that many people very much like to eat. It is rich in nutritional value, has relatively large market demand, and its market price is also relatively high. Therefore, the apple planting area is now growing larger and larger, and when growing apples, bagging work is very important. So how should we manage apples after bagging? Below, the editor brings you the key management points after bagging apples. Let's take a look together!
1. Reasonable watering
During the period from after bagging apples to before removing the bags, we should do a good job of watering. Reasonable watering during this period can not only promote fruit enlargement, but also avoid an increase in temperature inside the bags, which could cause sunburn on the apples after the bags are removed. Moreover, reasonable watering is also helpful for regulating the climate in the orchard, increasing the temperature difference between day and night, increasing night dew, and promoting apple fruit coloration. We should water appropriately about 3 days before removing the bags, and at other times mainly according to the soil drought conditions and specific conditions such as the weather. Do not water too much; keeping the soil moisture content at about 60% is sufficient.
2. Timely bag removal
After bagging apples, we should remove the bags at the appropriate time according to the development of the apple fruit. Generally, bag removal is carried out one month before fruit harvest, usually in September-October. When removing the bags, pay attention to the weather. It is best not to do it on sunny days, to avoid the fruit being unable to adapt in time after bag removal, which could cause fruit sunscald and seriously affect fruit quality. If bag removal must be done on a sunny day, then it should be done in the morning to ensure that the fruit surface temperature is close to the orchard temperature, but note that it should not be done in the early morning or evening.
3. Leaf removal and fruit turning
After bag removal, we should do a good job of leaf removal and fruit turning according to the fruit's coloration. Apple fruit coloration mainly depends on direct light, and insufficient direct light will have a great impact on coloration. Therefore, after bag removal, we should promptly remove the leaves that affect fruit coloration. Then turn the fruit toward the sunny side to provide sufficient direct light for fruit coloration and improve fruit quality. When turning the fruit, pay close attention to avoid fruit drop. The amount of leaf removal should be controlled at about 12%, and must not exceed 18% at most. Likewise, leaf removal should not be carried out under strong sun on sunny days, to avoid sunscald.
4. Spraying foliar fertilizer
After bagging apples, because the temperature inside the bags is relatively high, the metabolism of elements such as calcium is relatively fast. However, calcium has relatively weak transport capacity in the tree body, so compared with fruit trees that are not bagged, calcium deficiency is more likely to occur. Therefore, after bagging, we should do a good job of spraying foliar fertilizer; otherwise, apple trees are very prone to bitter pit caused by calcium deficiency. Moreover, after bag removal, the fruit's demand for calcium will further increase, so after bag removal, foliar fertilizer should also be sprayed about 3 times. For foliar fertilizer, amino acid calcium fertilizer can be chosen, and potassium can also be appropriately supplemented to promote fruit coloration.
The above is a brief introduction to the key management points after bagging apples. The management work after bagging apples is very important, affecting the fruit set rate and fruit quality, so everyone must pay close attention. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!