What s the deal with Fuji apple heart disease?

Apple heart disease, also known as apple honey fruit disease, apple water heart disease, etc., is a physiological diseaseIt occurs in all growing regions. The disease often leads to a decline in apple quality and yield, which seriously affects the efficiency of farmers.

Apple heart disease, also known as apple honey fruit disease, apple water heart disease, etc., is a physiological disease, which occurs in various planting and production areas. The disease often leads to a decline in apple quality and yield, which seriously affects the efficiency of farmers.

Apples have water heart disease, large fruits and small fruits are more diseased. Fruits with partial nitrogen fertilizer, young trees, high leaf-to-fruit ratio, and calcium malnutrition are prone to disease. The harvest is late and the tree is weak, and the fruit on the south or west side of the upper canopy is prone to disease. Calcium fertilizer spraying and soil compound fertilizer are mild.

Nitrogen fertilizer was not applied to apple trees, and compound fertilizer and phosphorus fertilizer (kg plant) were added. Pay attention to drainage and irrigation in apple orchards to keep soil moisture appropriate. Calcium nitrate was sprayed once 3 weeks and 5 weeks after the apple flowering and 10 weeks and 8 weeks before fruit picking, and 500 1000 times was sprayed once after 3 weeks after the full flowering period or 8 weeks before fruit picking.

Spray 1 000 mg kg or soluble calcium salt on the fruit surface 8 weeks before harvest. Soak in 4% 6% calcium chloride aqueous solution for 5 minutes before storage, and then store after drying.

Change the traditional ground clearing management, carry out grass mulching cultivation, and do not apply herbicides on the orchard floor. Grass growing between the rows of fruit trees and mulching the tree disc can improve the soil, increase the content of soil organic matter, fertilize the soil, improve the activity and vitality of soil enzymes, improve the soil microbial community and soil physical and chemical properties, enhance the aeration of the soil, and improve the waterlogging resistance of fruit trees. Improve the ability of soil fertilizer and water retention, and enhance the drought resistance of fruit trees.

Enhance soil buffering capacity, conserve water sources, and reduce the loss of water, soil and calcium nutrients. Increase orchard humidity, regulate soil temperature, and improve orchard microclimate. It can significantly improve the unhealthy state of soil such as soil barrenness, salinization and acidification, which is conducive to the healthy cultivation of apples and prevents calcium deficiency in fruit trees from causing heart disease.

Fuji apple heart disease is a relatively rare physiological disease in apples, which can cause a decrease in apple yield.

The occurrence of this disease is due to improper cultivation management, so it is said that there is such a disease.

Apple water heart disease is also known as glycation disease and honey fruit disease. The marshal line and Qinguan apples in the fruit areas of the Northwest Loess Plateau and the Qinling Plateau were seriously damaged, and the fruit quality deteriorated and was not resistant to storage, which was a physiological disease of apples.

Heart disease is a physiological disorder of apples, which is prominently manifested as water-soaked transparent tissue around the core line.

Apple heart disease should be caused by sugar accumulation.

This may be because they use too many pesticides, so this phenomenon will occur.

This is a common disease of apples, and it should be that pesticides are not used well to cause this disease.

It is a common disease of plants, which will affect the yield of apples, and it should be prevented.

It is possible that the environment in which apples are grown is not very good, so this is the case.

This is mainly due to the fact that all the sugar reaches the center of the apple and is caused by uneven photosynthesis.