What is the effect of windy weather on pitaya?

Today, I will share with you the influence of windy weather on pitaya and suggestions on how to minimize wind damage.

Considering different cultivation methods and different wind resistance, today we mainly discuss frame cultivation (tripod plus wire rope mode, the other is column cultivation, single column form, cement column plus tires);

This is a broken branch collected from the ground after the typhoon lasted for 2 days;

Through on-the-spot investigation, it was observed that the broken branches concentrated on the following characteristics:

The triangular column has branches on the upward edge, and the fracture probability is the largest;

Is it enough to leave a few branches on the upward edge?

Of course not? But relatively speaking, the wind resistance will be much better;

Considering these two situations comprehensively, ...

And the impact of the wind disaster is not just the breaking of branches!

You may be confused when you see this. This one won't work, and neither will that one. Do you want to live? !

Don't worry, let's analyze the two situations comprehensively. Why does wind damage cause some branches to break, while others are relatively safe to hang on the trunk?

To sum up:

1. The xylem of branches is not tough enough, and the tolerance to mechanical stress is poor (this goes back to the problem of how to fertilize, so the fertilizer used for branches needs to be changed from high nitrogen fertilizer to balanced fertilizer or high phosphorus potassium fertilizer and supplemented with calcium nutrition at the growth and maturity stage);

2. The stress area of branches is large, that is, the branches are thick, the triangular columns are wide, and the trees are large and beautiful (almost caused by sufficient nitrogen fertilizer). Whether it is beneficial (full nutrition, large fruit and good quality) or harmful (overgrowth of nutrition, difficulty in flowering and fruit setting) to the later fruits is still inconclusive.

3. Branch length, mainly the lever principle. The longer the branch, the greater the force transmitted from the tip to the stem node under the same wind force (this is the reason why the branch with small end is rarely broken), but the longer the branch, the greater the support from branches such as bamboo poles, and the less the case of breaking in the field;

4. The large swing of branches is also the main reason. In general, the fruiting branch itself has a certain toughness, and a small swing can be unaffected; Controlling this point can have an immediate effect on preventing wind damage. )

After talking for a long time, where should the feedback on site management start?

The control of wind damage is more from the direction of shelves in the early stage of garden construction. If there are high mountains around, you can choose to erect the shelf obliquely in the direction of high mountains (try to reduce the swing amplitude of branches, the horizontal swing of parallel branches is serious, and the vertical whole row is the most stressed, which is easy to cause lodging). At the same time, it must be comprehensively solved by combining the following contents;

For the gardens that have been built, we should consider the following directions:

Fertilization habit

High nitrogen balance, phosphorus and potassium fertilizer, and appropriate calcium fertilizer;

Branch pruning

Trim the fruit branches with upward edges.

(Suggestion: In fact, the direction of the edge is relative, and the bud point of the mother plant is limited, so the fruiting branches that can stay should be chosen as far as possible, even if they cannot be used as fruiting branches, it is also a good choice for seedlings. )

Of course, the most important thing is:

Results the tip of the branch was fixed and the swing amplitude of the branch was controlled.

There are still some problems about tip fixation, mainly the toughness of branches. Don't break branches, not because of the wind, but because of people. That would be uneconomical.

On the one hand, the top fixing can adjust the stress of stem nodes, on the other hand, it can also adjust the trend of fruiting branches, further reducing the friction between branches caused by wind damage.

About medication and foliar nutrition after wind and rain;

After the strong wind, the branches swung greatly, and even if they were not broken, there was already a wound at the stem node. If accompanied by rainfall, it is very easy to cause bacterial infection, which may not show up for a while (see mango angular leaf spot). When it reaches a certain growth period (for example, when the plant resistance decreases during flowering and fruit bearing, it is easy to get sick, which has a serious impact on fruit quality);

In addition, friends who understand the absorption mechanism of foliar fertilizer may see the positive side (foliar fertilizer is mainly absorbed by crops through leaf stomata and some gaps), and the roots will also be affected by climate, so it takes a long time to absorb and transport, so when should we not supplement foliar fertilizer at this time? !

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The statement is for reference only, and the actual operation must be based on the local climate and soil, consulting local experienced agricultural experts! This article comes from the internet and is not responsible for its authenticity. If there is any infringement, please contact to delete (zzny 12580).