Causes of Fruit Cracking in Gonggan Mandarin and Its Prevention and Control Methods

Gonggan mandarin seedlings, also known as Emperor Mandarin, are a fruit that people relatively favor in daily life, and they are planted in many regions of our country. However, during the cultivation of Gonggan mandarin, fruit cracking occurs, seriously affecting the yield and quality of Gonggan mandarin and reducing returns. So what causes fruit cracking in Gonggan mandarin? How should it be prevented and controlled? Let's take a look at the detailed introduction.

I. Causes of fruit cracking

Fruit cracking in Gonggan mandarin is generally mainly related to moisture. During the growth of Gonggan mandarin, if moisture is insufficient, it will lead to fewer fruits and trigger fruit drop, while if moisture suddenly increases, fruit cracking is very likely to occur. Fruit cracking in Gonggan mandarin generally occurs from the fruit expansion stage to the color turning stage, and fruit cracking occurs when a long drought is followed by rain. In addition, fruit cracking in Gonggan mandarin is also somewhat related to calcium deficiency. When the plant lacks calcium, calcium deficiency in the peel will reduce its toughness. When the flesh absorbs water and expands, the peel growth cannot keep up with the flesh growth, and the flesh will directly burst it open.

II. Prevention and control methods

1. Increase the application of organic fertilizer

During the autumn shoot stage, increase the application of organic fertilizer, combined with quick-acting compound fertilizer, and apply it according to the balanced formula fertilization method, which is beneficial for coordinating the supply of nutrients such as organic fertilizer and inorganic fertilizer, promoting balanced growth of the flesh and peel, making the peel cell density high, enhancing toughness, and reducing fruit cracking.

2. Foliar fertilizer spraying

During the fruit expansion stage, timely spray foliar fertilizers such as calcium and magnesium, which can effectively supplement the calcium, magnesium and other trace elements lacking in the plant. When carrying out foliar fertilizer spraying, pay attention to the concentration.

3. Do a good job in water management

In summer, when temperatures are high and there is much rain, promptly drain the waterlogged areas in the orchard to prevent drought, so as to avoid water accumulation in the orchard causing soil oxygen content to drop and causing suffocation and root rot, leading to weakened tree vigor and yellowing of the plant. In autumn, when the climate is dry, water appropriately to keep the soil moist, but also avoid a long drought followed by sudden rain, which causes the flesh to absorb a large amount of water and result in fruit cracking.

The above is an introduction to the causes of fruit cracking in Gonggan mandarin and its prevention and control methods. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.