Excuse me, what is the principle of healing after walnut cracks?

The walnut skin will rise when it absorbs water, and it will shrink when the water evaporates. The skin of the same walnut is thick in some places, thin in some places, and the density is not the same, and it is not uniform when it shrinks when it loses water, so that it will produce a certain stress in some parts of the walnut, and the force is large and small, and the bearing capacity of each walnut is also large and small. If the stress exceeds the bearing capacity, it will crack, and vice versa, so this is a matter related to the physical properties of walnut skin.

If the skin is uniform and the toughness of the skin is good, it is not easy to crack; The shrinkage is uniform and slow, and the stress is small, it is not easy to crack, and vice versa. The old iron skin is hard and brittle, and it is easy to crack, and the hemp walnut is relatively better, and the catalpa.

The skin is soft and does not crack easily.

The principle is that the cracks still exist, but they can't be seen by the human eye.

It can be restored on its own, if it is a walnut of the year, it is the easiest to repair, because the fruit of the tree just after the tree can produce a gelatinous substance that can make the cracked part heal! And after this healing, it is difficult to see the cracking, and it is almost perfectly repaired!

If it is not the walnut of the year, after the walnut is cracked, prepare a sealed bag, touch a layer of water inside the sealed bag, and then put the cracked walnut inside and seal it for three days, and wait to take it out to see that the traces of cracking are completely gone. Then dry in the shade for a week, and it will become a perfect walnut again.

Walnuts are fruits themselves, so they contain water, which is slowly lost over time. Moreover, the inside of the walnut is empty, and when the moisture is lost, the pressure inside is different from the outside, which will cause the walnut to crack.

The cracking of walnuts is nothing more than the following situations. The first is that the walnut accidentally falls to the ground and cracks, the second walnut is too dry to crack, the third walnut itself has hidden cracks, and the last walnut sprouts and opens. The main reasons for the different pressures are the temperature difference, the wind blowing, and the humidity!

Then the cracking that we just got is due to the lack of cleaning and protection!

After the nucleus cracks, some measures can be taken, such as strengthening ditching and drainage in cultivation management, paying attention to summer pruning, applying enough phosphorus fertilizer, and less nitrogen fertilizer.

There are many reasons for peach pit cracking, the main ones are:

1. Variety characteristics cause cracked walnuts Varieties with crispy flesh are more likely to split kernels than varieties with dense flesh; Partial round varieties are more prone to splitting than oblong varieties; Early and medium-ripening varieties are more prone to cracking than late-maturing varieties.

2. Environmental conditions cause cracking before and after the hard core period of peaches (that is, during the growth and development of peach pits), encountering too much rain, and it is easy to crack the pits; Soil water tables that are too high and poorly drained can also cause splitting.

3. Cultivation and management cause cracked kernels Partial application of nitrogen fertilizer, insufficient phosphorus fertilizer, resulting in the growth of peach trees, and do not pay attention to summer pruning, which is easy to cause cracking. The effect of the split core on the quality: After the peach is cracked, the appearance and flesh quality are generally not affected, but because the split core will cause a single weight to be slightly lighter, the peach pit will be separated when eating.

Smash it open and eat it. Otherwise, it's broken.

1. Exposure to the sun and high temperatures. If new walnuts and old walnuts are exposed to direct sunlight for a long time, they are very likely to crack.

Precautionary measures to minimize playing in the sun, especially new walnuts. When you're not playing, don't leave walnuts outdoors, on windowsills with sunlight, heating (in winter), balconies, etc.

2. New walnuts attract wind. The new walnuts have just peeled off the green skin, and before they are dry, they start to play with them when they are wet, and if they are outdoors, they encounter wind or indoor fans blowing the walnuts directly, and the walnuts will generally have the possibility of cracking. As a precaution, it is best not to rush to get started with the newly planted walnuts, and wait at least about a week for the walnuts to be dispersed and dry before getting started.

3. Do not dry in the shade after cleaning. New walnuts and old walnuts that I didn't get my hands on. If it needs to be cleaned, it must be dried in the shade for at least three days after cleaning, otherwise if the walnuts are not completely dried by the moisture inside and outside the walnuts, the walnuts will crack when the wind blows.

As a precaution, after washing, place it in an envelope (unsealed) in a drawer and wait for it to dry for at least a week.

4. Smash and squeeze. Sometimes walnuts fall to the ground unintentionally, and they happen to crack, walnuts are squeezed in the trouser pocket, and there are heavy objects on the walnuts when they are stored, which will cause walnuts to crack. Only by keeping it properly and playing with it carefully will you keep your beloved things from being damaged.

5.Over-ripening. There are some varieties of walnuts that have passed the picking season and have not been planted in time.

Let the walnuts continue to hang on the tree. When a walnut grows too ripe and too full, the tip of the walnut will naturally open its mouth. Such walnuts are easy to crack in the future during play.

6.Walnuts washed with acid bites are prone to cracking. Because the joints of walnuts become loose and not tight after being soaked in strong chemicals.

When playing, most walnuts will crack or the sound is wrong, walnuts after washing or acid biting, the cortex of walnuts will be damaged, and this damage is irreversible.

1. It is normal for walnut trees to crack and age.

2. Cracks caused by rot disease scars, pay attention to rot disease prevention and aware, copper hydroxide, peracetic acid, formarsine, etc.

3. In winter, frost damage is early, ripening or bark cracking, and whitening of lime can be effectively prevented by stone sulfur mixture slag.