Misunderstanding Of Seedling Cultivation

By Author: doris zhang
Total Articles: 76
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Planting too deep in the process of planting, some people fear that the tree will be blown down by the wind or shaken artificially, so they plant the saplings too deep, which will cause the saplings not to germinate or even die. The author has encountered such examples in his work. Some of the same kind of seedling trays planted together have sprouted, but some have not seen the dynamics for a long time. After that, the non germinated seedlings were dug out from the cultivation hole to find the reason, and no questions such as pedantry in the root were found. When planting from the beginning, the seedlings sprouted after a while. The seedlings are planted too deep and the ground temperature is low, so the seedlings are not easy to germinate and new roots are not easy to develop. Through practice, the author believes that the bare root saplings can be 3 cm to 5 cm higher than the original soil mark of the saplings, and the saplings with soil ball should be flush with the upper epidermis of the soil ball or slightly higher than the unearthed ball by about 2 cm. In order to reduce the ...
... settlement after watering and prevent the seedlings from sinking too much after planting, the planting soil shall be backfilled in layers, and the foot structure shall be used for each layer.

Watering too much water is very important for saplings. Without water, saplings cannot survive, but large water will also cause saplings to die. In our work, we often find that many trees are not killed by drought, but by waterlogging. Because some people love trees, they think that the seedling root system is damaged, the water absorption capacity is poor, and the tree body must be short of water, so they water the tree every three days or two. The effect was counterproductive, and the saplings were waterlogged to death. The roots of newly planted seedlings are damaged, and the water absorption capacity is poor. It is right to pour more water, but it is necessary to have a degree, so that the roots can not always soak in the mud. Due to excessive watering, the oxygen content in the soil will be reduced, and the respiration of the root system will be affected. In addition, the reproduction of anaerobic bacteria will lead to the circuitous root. The correct method is to pour enough water through the head water immediately after planting, two water after a week, and three water after 10 days. After that, you can water according to the local climate and soil moisture, and adhere to 80% of the soil moisture.

It is very correct and necessary to apply some fertilizer when planting seedlings with excessive fertilizer. However, in our work, the seedlings are often "burned" due to excessive fertilizer, which requires us to properly apply fertilizer to the seedlings. After years of practice, the author believes that livestock manure (pure fertilizer) can be applied by 10kg to 15kg per cubic meter of soil, and rotten leaf fertilizer can be applied by 20kg per cubic meter of soil. It should be noted that the fertilizer must be fully mixed with the planting soil. It is not allowed to directly apply the fertilizer to the bottom of the hole, and then plant seedlings on the fertilizer. The fertilizer used must be thoroughly decomposed and fermented. The fertilizer without decomposition and fermentation cannot be directly used to prevent the heat released in the fermentation process from burning the root system.

Improper pruning saplings are generally pruned if there is no special need during planting, especially deciduous saplings. In work, two situations often occur. One is that because the saplings have a good shape, some people are afraid that pruning the branches will affect the appreciation effect, so they don't prune the saplings, which leads to large evaporation of the tree body, the injured root hydroponic system can't supply the water to the plant, and then the saplings die. The author believes that the newly planted seedlings should be trimmed according to the situation, even those with large standardized soil balls. When pruning, short cutting and sparse cutting can be connected according to the situation of the seedlings, and some branches can be retained to the greatest extent under the condition of ensuring survival; Second, when pruning, the pruning is often not in place. For example, when thinning the saplings, they are not clean and neat, and the branches are not cut off at the same root, leaving "piles" and "pegs". This is not only not beautiful, but also not conducive to wound healing. It will also endanger the saplings due to the pedantry of dead piles in the future. The proverb "it is better to let the tree get hurt than to let the tree carry a gun" spread by some old garden workers is about this situation. The so-called "carrying a gun" means that the "pile" and "pin" are left when the saplings are thinned. Therefore, when pruning the newly planted saplings, they must be clean and cut off.