The cause and Prevention of the latest Apple Water crack

Apple is familiar to everyone, and many friends may be fed up with it, but there is no denying the economic and nutritional value of Apple itself. Apple has a long history of planting in China, and there is a set of very mature planting technology. But there will inevitably be problems in the planting process, in which the water crack is one. There will be waterlogged cracks on the apple surface, which will not affect the taste, but will affect its appearance and reduce the commodity value, so what is the cause? Let's have a look!

1. Gene

Reason: when selecting varieties improperly, many varieties contain the character of water crack in their genes, and the varieties with water crack character are selected when selecting seeds.

Prevention and treatment: when selecting seeds, we should avoid varieties with water crack diseases, such as Fuji and Guoguang, etc., and disinfect the seeds after seed selection before sowing.

2. Weather

Reason: sudden changes in the weather do great harm to fruit trees, such as continuous high temperature in the case of soil irrigation, so that fruit trees can not adapt in time, resulting in water cracks.

Prevention and control: take all measures to deal with sudden weather, pay attention to weather changes in time, and be prepared before the weather changes, such as cooling and windbreak facilities.

3. Soil

Reason: soil moisture changes too much, improper management, such as general weather reasons, continuous lack of water, sudden rainstorm or artificial irrigation does not control the amount, apples can not adapt, or the soil water retention is not strong, so that a large amount of water loss, but also very prone to waterlogging damage to the growth of fruit trees, resulting in water cracks.

Prevention and control: keep the soil dry and humidity, not suddenly wet and dry, drought timely watering, rainstorm timely drainage, actively deal with all sudden changes. The soil with weak water retention should find ways to enhance, promote soil moisture and reduce the incidence of water cracks.

4. Fertilization

Reason: wrong fertilization method, or wrong fertilizer, long-term application of a single fertilizer or excessive application, so that the absorption of nutrients in fruit trees is blocked and unbalanced. And it will reduce the resistance of fruit trees, especially the undermature farm manure, which will cause great harm to the growth of fruit.

Prevention and control: fertilizer nutrients need to be uniform, not a single application of a certain kind of fertilizer, especially nitrogen fertilizer, single application of nitrogen fertilizer, resulting in excessive growth of branches, insufficient nutrition of fruits, resulting in water cracks. The amount of fertilization should not be too much, it is suitable for development.

5. Fruit bag

Reason: bagging work will be carried out when young fruits appear, and some growers use very poor quality fruit bags in order to save money, so that the fruit can not be hydrophobic in time, or the rain can not be effectively waterproof, and the fruit soaking for a long time leads to water cracks.

Prevention and treatment: do not use inferior fruit bags to save a few yuan, you should choose hydrophobic and waterproof fruit bags for bagging.

6. Lighting

The reason: the fruit trees are not pruned in time or the pruning work is unreasonable, so that the orchard grows in shade and no light for a long time, the permeability is very poor, and the pericarp of the fruit is underdeveloped. Or after picking the bag, the fruit receives uneven light, resulting in water cracks.

Prevention and treatment: it is best to prune the orchard, master the correct pruning method, strengthen the ventilation and light transmittance in the orchard, and need reasonable close planting before planting. Let the fruit receive light evenly after picking the bag.

The above is a brief introduction to why there are water cracks in apples and their prevention and control methods, and it is also necessary to pay attention to keeping the fruit out of contact with water after picking the bag. It may also be due to the fact that fruit trees are too old and their fruiting ability is weakened. All in all, most of the reasons are caused by management, so we must strengthen the management of orchards in order to effectively reduce the incidence of water cracks.