Peach tree cracking fruit pay attention to appropriate calcium fertilizer

1. The cracking fruit is a physiological disease, which usually occurs in the second expansion period of the fruit. At this time, the fruit enters a period of rapid expansion, and the expansion of the flesh is often faster than the growth of the fruit, causing the peel to crack. Especially in the case of heavy rain and heavy rain, the fruit trees absorb a lot of water, and the fruit expands rapidly, and the skin is swollen to form a cracked fruit. Therefore, the water management of peach trees must pay attention to not making the soil too dry. During the fruit expansion period, the soil moisture has been maintained and the fruit expansion has been carried out smoothly. In the case of prolonged drought, do not pour large water. After the rainstorm, it is necessary to drain the water in time, and plan to dry it to reduce the excessive supply of water.

2. The soft rot of the peach fruit along the abdominal suture is also a physiological disease. In terms of deficiency, it is mainly calcium deficiency. Peach trees are particularly sensitive to calcium. The lack of calcium not only causes softening and rot in the abdominal line, but also reduces the hardness of the whole peach, the taste is deteriorated, and the storage capacity is reduced. There are two ways to absorb calcium. One is root absorption and the other is leaf surface absorption. In recent years, many fruit farmers have used a large amount of unfertilized organic fertilizer, especially chicken manure. Organic fertilizer is not fermented. After being applied to the soil, a large amount of heat is generated during the fermentation process, and the tender roots are burned out, which greatly affects the absorption capacity of the roots, weakens the tree body, prematurely decays, and even dies, and also affects calcium. absorb. The effect of leaf calcium supplementation is generally less obvious. This is highly dependent on the type of calcium fertilizer used on the foliage because calcium is less mobile in the crop. It is recommended that foliar calcium should be selected from mannitol chelated calcium, royal jelly calcium or fruit and vegetable calcium. These calcium fertilizers can be transported up and down in the tree body, so that the calcium on the leaf surface can be transmitted to the fruit and the calcium is increased. The effect of using.

In addition, the cracking fruit also has a certain relationship with calcium deficiency. Increasing the calcium fertilizer can make the peel hard and increase the toughness, and also has a certain effect on preventing cracking.

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