What are the latest control measures for nectarine fruit cracking?

Nectarine fruit cracking can seriously affect the quality of nectarines and the economic interests of growers. For this situation of cracked fruit with an uneven surface, cracks, and affected fruit flavor, what exactly should be done? Last time, the editor introduced the causes of nectarine fruit cracking. Today, the editor will talk with everyone about how to prevent nectarine fruit cracking.

1. Choose varieties

There are many varieties of nectarines, such as Zhongyou No. 4, Shuangxihong, and others. When planting nectarines in different regions, the variety suitable for your region should be selected according to the environment and climatic conditions of the planting area. For example, if you are in North China, Northwest China, and other areas with relatively little rainfall, nectarine fruit cracking is relatively rare there, so varieties that mature at any time can be cultivated in that area. However, in southern regions with more rainy weather, it is best to avoid the rainy season in the south or choose early-maturing varieties with a lower fruit cracking rate, such as Shuangxihong, Zhongyou No. 14, and others.

2. Reasonable irrigation

⟦NL>Artificial irrigation in the orchard will appropriately increase the water content in nectarine flesh, so maintaining the water content required by nectarines every day can reduce or even avoid the fruit cracking rate of nectarines. It is best to use drip irrigation and irrigation methods for watering, because this can evenly supply water to the soil in the orchard and provide a stable water supply for nectarines. It is very beneficial to the flesh cells of nectarines and can reduce fruit cracking. If continuous rainy weather occurs, the water in the orchard should be drained in time to avoid excessive water affecting the tree roots.

3. Bagging management

Carry out bagging once when nectarines are fruiting or at the young fruit stage, but it should be noted that before bagging, an insecticide and fungicide should be sprayed once in the orchard. The purpose is to remove pathogens and sources of disease from the orchard and young fruit. Paper bags or plastic bags can be chosen for bagging, and they can also be made by yourself if there is time. After bagging, pay attention to the condition of the leaves and fruit, and deal with abnormalities in time. Remove the bags one week before preparing to harvest, but in order to prevent the nectarines from being burned after bag removal because they cannot withstand the stimulation of light, the bottom of the bag should be torn off to let the nectarines adapt slowly.

4. Thinning and pruning

Nectarine trees should not grow too tall. The trees should be controlled at a medium height, and some weak and poorly developed branches should be pruned off, because nectarines grown from such branches have a higher fruit cracking rate. The branches cannot ensure the nutrients needed for nectarine growth. These branches can be pruned off, which not only saves nutrients but also improves the ventilation in the orchard, making it more conducive to nectarine growth.

The above are the methods for preventing and controlling nectarine fruit cracking. Except for the first issue of variety, the other three can all be achieved through your own reasonable management. As long as the water and nutrients required by nectarines are maintained in daily care, as well as the ventilation between each tree in the orchard, the fruit cracking rate of nectarines can be reduced a lot.