Causes and preventive measures of easy decline and death of young fruit trees

In the process of fruit tree cultivation, the phenomenon of young fruit trees weakening and feeding often occurs, which endangers the normal growth of fruit trees and causes serious economic losses to fruit growers. So what causes young fruit trees to die easily? Let's get to know each other along with Xiaobian.

1. Strip drawing

Fruit tree shoot because of excessive watering in the growing season, excessive nitrogen application, will make young trees grow too prosperous, growth is not full, plus winter and early spring temperature is high, less rain and snow, branches of water and root supply imbalance, resulting in branches dry water.

Preventive measures: First, it is necessary to promote spring planting, autumn introduction after the first false planting, after planting fixed stem, each tree into a long plastic bag, not only to prevent shooting, but also to prevent pests, but also to promote germination and growth. Or after planting, use glycerin or animal oil to wipe up from the lower end of the seedlings to prevent water loss. If the shoots have occurred after planting, you can cut off the shoots at the lower germination site in early April, leaving the remaining 2-3 buds at the upper part, and wipe off all others.

2, fertilizer damage

There are two kinds of fertilizer damage: one is that the amount of chemical fertilizer applied is too large and too concentrated, which is easy to cause root burn, and the symptom is vertical drying of trunk or death of whole plant; the other is that a large amount of undecomposed organic fertilizer is applied to cause root burn, thus causing weakness and even death of aboveground.

preventive measures

For the slight root burning phenomenon caused by fertilization, the tree tray can be turned over first, the fertilizer and soil can be mixed, and the fertilizer concentration can be diluted by watering 1-2 times. For the trunk that is withered, the medicine or paint should be applied in time, and the plastic cloth should be wrapped to promote the healing tissue generation and prevent it from being transformed into dry rot or rot.

3. Root water loss

The seedlings which are not watered in time after planting or whose roots have lost water seriously before planting are easy to die after planting.

Preventive measures: For this situation can only be replaced seedlings re-planting, if the seedlings have mild water loss, you can now soak in water for 10-20 hours, then dip in rooting powder and then transplant. In addition, the seedlings should be dipped in mud, and then wrapped in plastic bags or wet bullocks, and then loaded for transportation to avoid water loss on the way.

4. Freezing injury

Some fruit trees have poor cold resistance and are easily subjected to freezing damage in winter, which causes the death of the cambium, causing the trunk to wither or even the whole plant to die, such as persimmon, fig, pomegranate and other fruit trees.

Preventive measures: For those fruit tree varieties prone to freezing injury, preventive measures should be taken before wintering. First, white coating can be used to smear the trunk with lime water to achieve better frost resistance; Second, bandaging can be used to wrap the trunk with newspaper and straw; Third, some animal fat or hydroxymethyl cellulose should be sprayed on the exposed trunk parts after bandaging to avoid water loss, and the parts of stress death can be cut off in time.

The above is an introduction to the reasons and preventive measures for the decline of young fruit trees. I hope it can help you. If you want to know more about related knowledge, please pay attention to us.