What is the reason for the grapevines planted in the rural courtyard, the fruit is almost ripe and k

It is related to the grape variety, and some varieties are very prone to fruit splitting. The precipitation increases, the climate problems are the same, the fruit is quickly digested and absorbs water, the fruit grows rapidly, and the rate of exocarp growth and development cannot keep up with the rate of fruit development, and then the same red cracked fruit. ConclusionThe relative density is also related to the split fruit, and the conclusion that if the relative density is too large, the friction in the middle of the red grape fruit increases under the effect of wind speed, and the position of the rhizome will also lead to the red grape cracked fruit.

Cracked fruit is also closely related to whether there are no seeds, most of the cracked fruits appear in the fruit grains with only a single seed, if the single seed grows unevenly, it is biased on one side, and if it is damaged, it is also very easy to cause red grapes and cracked fruit.

Choose a better variety that is not easy to crack the fruit and start planting. Carry out manual control, and carry out vegetables and fruits on too dense grains to reduce friction. Spraying calcium fertilizer to improve the skin strength and wall thickness can reasonably reduce the cracking of red grapes.

In fact, red grape is not a water-loving crop, especially during the surging period, it must not be applied again, just maintain the leaves are not yellow, the soil layer is wet and cold, and the method of spraying can be used to reduce the amount of water, which can avoid the occurrence of fruit cracking due to the sharp increase in the water flow rate in the fruit.

Now it has come in three dog days, the temperature and high humidity are very easy to cause red grapes to crack due to the ambient temperature, and it is very easy to produce fruit sunburn disease, so to prevent the fruit cracking caused by high temperature and high humidity can be used to pull on the sunscreen countermeasures, which can reduce the exposure of the sun on the one hand, on the other hand, it can also avoid the peck of birds and reduce unnecessary countermeasures. Long-term drought is suddenly flooded: grapes are a very drought-tolerant climbing plant, the standard for moisture during the growth and development period is not very large, although the red grapes can withstand drought, but they are afraid of waterlogging, and the storage of water is very easy to cause strawberry fruit cracking, especially after a period of drought, rainfall, watering, too much water intake, will cause strawberry fruit cracking, more serious will continue to rot, drop fruit, for the production and sales of red grapes is quite harmful, in the red grape Peng period, It is necessary to do a good job in the smooth flow of drainage pipes to prevent the loss of red grapes due to waterlogging.

The exocarp fruit is out of sync: the absorption power of the causal flesh is significantly stronger than that of the exocarp, so once the moisture content is greatly transformed, it is very easy to cause the fruit to swell, break the exocarp, and cause the fruit to crack. Ectocarp fruit growth and development are not coordinated:

The use of naphthalene acetic acid in green plants has long been very extensive, but once it is widely used, it will inhibit the growth and development of the exocarp, and then cause the fruit to crack the exocarp. Caused by red grape deficiency: Red grape deficiency may also cause fruit cracking.

Low potassium red gravies, which will cause the exocarp to soften; The lack of calcium red grapes often leads to insufficient ductility of plant cells of red grapes, which are very fragile and prone to fruit cracking. Too many grapes produce too many fruits, resulting in a crushing situation: too many conclusions and the fruits are squeezed against each other, which can be too heavy and crack.

This can be due to malnutrition, or it can be due to good sunlight, or it can be caused by drought.

If the grapes are almost ripe and keep cracking, it may be caused by grape acid rot, or it may be caused by the environment.

Hello, generally fruit trees have fruit drops, that's normal.

The first fruit drop is caused by poor pollination and fertilization, and the second fruit drop is caused by insufficient nutrition (too many results are not necessarily all good things, Zheng hunger bears too many fruits, and too much nutrient consumption will cause the fruit to be small and the tree to decline too quickly). These are normal physiological phenomena that do not have to be solved by any means.

However, if the fruit is less and the fruit falls or a large number of fruit drops, there are generally the following phenomena called back to cause: the introduction of pests and diseases such as aphids, insects, etc. or downy mildew, powdery mildew, etc., pests can be sprayed with pesticides, the selection of pesticides is: emamectin salt insecticide, imidacloprid to kill aphid insects, Kelu prevention and control of downy mildew, Jiatuo prevention and treatment of powdery, black star and other diseases, the second is the introduction of insufficient fertilizer and water, water-soluble fertilizers can be applied, such as Haihewei water-soluble fertilizer, foliar spray sea meal fertile foliar fertilizer containing amino acids + boron fertilizer + powder potassium dihydrogen phosphate, to promote fruit trees to protect flowers and fruits.

Tree grape is a large tree fruit tree that grows all year round, and is named tree grape because its fruit resembles a grape. It is a newly discovered special species hidden in the primeval forest, which can bloom and bear fruit four times a year, and is a national key protected species.

The main trunk of the vine is cracked and can survive. The main trunk of the vine can be regrown after being cut off, but it is not essentially a rebirth of the previous plant, but a new side branch that grows at its roots, and usually the new branch will be thicker overall, and if properly maintained, it will be better than the old trunk.

Cause. 1. Soil factors.

There are many factors that affect the new trunk of the vine, one of which is the soil, which can only grow quickly in a suitable substrate under normal conditions, and the soil needs to have a loose and porous structure, good ventilation and drainage capacity and a certain basic fertility to ensure the smooth development of the vines.

2. Watering control.

When watering the vines, it is necessary to see the dry and wet, and the soil is not dry and watered, but when watering, it is necessary to ensure that the water is fully watered to maintain the slightly moist state of the soil, and when watering, it should be adjusted according to the actual situation of the soil, no matter under any circumstances, it is not possible to leave water in the soil.

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1. The cracking of the trunk of the infected grapevine may be due to the breeding of fungi and bacteria, and it should be sprayed with mancozeb agent in time after discovery, or the infected parts can be dug off with a knife, and then sprayed carbendazim disinfection solution on the grapevines. 2. Watering too little grapevines like to grow in a humid environment, if the plant does not absorb enough water during the growth process, it will lead to the cracking of the trunk, so when cultivating grapevines, it is best to water the soil once every 3-4 days, and there is no need to water in the rainy season. 3. Excessive fertilization of grape vines during the growth period of fertilizer demand is greater, but do not like thick fertilizer, if too much fertilization, the branches are prone to cracking, you can apply a lower concentration of liquid fertilizer to the vine every 1 month.

4. The sun shines on the vine is a plant that likes the sun, but it is not suitable for exposure to the scorching sun, if the plant grows in a strong light environment for a long time, the trunk will be dry and cracked, and when the grapevines are cultivated in summer, they should use a shade net to block part of the light to avoid dry and dehydrated branches.

What is it that a few vines are planted in the vegetable garden, and the fruit that bears fruit every year falls before it is ripe? I think this may be due to the fact that the vines are already flowering and bearing fruit before they are fully developed. Maybe you didn't take the time to thin the fruit in time and caused malnutrition on the vine in the first place.

As a result, the vines may only absorb enough nutrients during subsequent growth to be consumed at the time of flowering. When the grapes bear fruit, the nutrients cannot keep up, which will cause the grapes to soften and fruit drop to occur.

First of all, we should control the moisture content of the grapes during ripening and water them less or no at all. In front of my mother's house, there was a large vegetable garden. In addition to growing vegetables, peach trees, apricot trees, and two grapevines are planted around the area.

It was found that every year when the grapes were about to ripen, the grapes kept falling and were almost eaten before they could be eaten. When grapes are about to ripen, they are very sensitive to water needs. We have to control the water.

If there is less water, the fruit will not be full, but if there is more water, the fruit will crack and even rot. If it rains, you can water less or no at all. If the soil is dry, don't overwater it.

Second, if too much nitrogen fertilizer is used and calcium and magnesium are not supplemented enough in the early stage of grape planting, fruit drop will also occur, that is, sunburn fruit drop. During the period from hardcore to coloring, some grape seeds will turn black and dry due to direct light. This is because if too much nitrogen is applied in the early stage, the leaves of the grapes will grow too fat, tender and thick, and the ability to resist pests and diseases will be reduced, leading to the outbreak of various pests and diseases.

And the overgrowth of the leaves can also exacerbate the degree of sunburn. Therefore, it is necessary to carry out reasonable pruning in the summer. In addition to keeping the cool secondary shoots on the ears, properly cutting off some new shoots can reduce the severity of sunburn.

If there is a lack of magnesium and calcium in the grapes, it can lead to seed and fruit drop before harvest. Magnesium-deficient leaves will have yellow leaves and flowering leaves, less photosynthesis and insufficient nutrients, which will lead to fruit drop. Due to the control of nitrogen utilization, attention should be paid to calcium and magnesium supplementation, foliar spraying, underground drip irrigation and microsupplementation, calcium and phosphorus supplementation can promote the healthy growth of root system, and calcium and magnesium supplementation can improve fruit firmness and reduce fruit drop.

Thirdly, it is of the nature of pests and diseases. July and August are the season when the grapes are ripe. There's a lot of rain and humidity here, and a lot of hot weather.

At this time, grapes are prone to diseases, especially downy mildew, anthracnose, powdery mildew, black pox, etc., which will cause a large number of fruit to fall off. Therefore, grapes should be sprayed with Bordeaux liquid before and after germination, and neem can be sprayed with 70% Antaisheng during the fruit-setting period, which has a good control effect on the above diseases. Alternatively, when the grapes are bean-sized, you can wear a special fruit bag for the grapes, which can significantly reduce the phenomenon of rotting fruit.

When the grapes are about to ripen, the fruit has a large number of falling off the phenomenon of watering less, otherwise whether it is cultivated in the open field or in the protected land, if the management is not scientific enough, there will be a phenomenon of falling flowers and fruits, so it should be controlled in time to prevent falling flowers and fruits.

The main reason is that the root system is too humid, or it may be because of insufficient nutrients, so it is necessary to control water and fertilizer management, drain the root system of grapes in time, and fertilize the grapes in time.

It may be that the bottom of the vine is not particularly well breathable, and it may be that the fruit falls due to too much water when it bears fruit, or it may be too much water to cause the fruit to fall.

The main trunk of the vine is still alive when it is cracked, and when the main trunk is cracked, new branches grow back from the roots. Cracking of the vine trunk can be caused by pests and diseases, which require spraying with disinfectants**. Lack of water can also lead to cracking of the vine's trunk, which is protected by watering the soil.

Excessive light can also cause cracks in the trunk of the vine, so take shade when the light is too strong.

After the main trunk of the vine is cracked, new branches will grow again from the roots, and the new branches will be thicker than the old branches as a whole, and the growth of the new branches of the vine will be better than the old trunk with reasonable maintenance.

Cracking of the main trunk of the vine can be caused by a lack of water, and the vine is well suited to a humid environment, which can lead to cracking if the vine does not absorb enough water during the growth process. Therefore, in the process of cultivating vines, it is necessary to water the soil every 3 to 4 days, and in the rainy season there is no need for watering.

The cracking of the main trunk of the vine may also be caused by the growth of fungi and bacteria, and it is necessary to spray the diluted manganese zinc solution on the branches in time after discovery, or you can use a knife to dig out the infected parts and spray carbendazim solution on the vines**.

The vines are suitable for growing in a sunny environment, but they are not tolerant to strong sunlight, and if the vines are left in a strong light environment for a long time, the main trunk will crack. Therefore, when the sunlight is too strong in summer, it is necessary to use a shade net to block the strong light to avoid dehydration and cracking of the branches.

The vast majority of garden grapes don't bear any results, it's just *** bad. However, some courtyard grape buildings are too high, blocking the sun, and the lighting and ventilation are affected, and the grapes do not get enough sunlight to produce the necessary organic nutrients, resulting in the indifferentiation of the eyes and the results are not produced. One of the important functions of garden grapes is to beautify the environment and face the "shed" for summer shade, so most people do not prune it.

If you leave too many branches and the leaves are too dense, most of the leaves will not get enough sunlight to produce nutrients, and will also consume a lot of nutrients, making the branches fragile and not good at flower bud differentiation. Some people do not prune for many years, so that they grow, the branches are many, the nutrients are scattered, the long tune does not grow, and it cannot flower. In addition, there are too many fruits in one year, the branches are not mature, the flower buds are not differentiated, and the next year does not bear fruit, forming a large and small year.

Due to the lack of management, garden grapes are in a warm and humid place for a long time, which is easy to cause pests and diseases, and when pests and diseases occur, the leaves can not photosynthesize normally, causing malnutrition, causing serious flower and fruit drops and phenomena. Too strong or too weak a vine is not conducive to flowering and fruiting, and only a strong tree can stabilize the fruit. Because the vigorous growth of the tree when it is too strong will consume a lot of nutrients, reducing the quality of the winter seedlings under the tree.

Due to the needs of shaping, pruning and renewal, and shelf surface, many high-quality buds in the middle and upper parts of long branches cannot be left, so if the remaining result is that the quality of the seedlings' winter buds is relatively poor, the ability to bud and bloom in spring will be reduced. Some are varieties that cannot be pollinated by females, such as pistils and petals. Selective seedlings can be problematic, the varieties are not good, and it is difficult to get results.

Some vines do not bear fruit in 1 or 2 years, so it is important to pay attention to the number of years of fruiting when choosing seedlings. If the branches and leaves are not pruned in time during the growth period, there are many new shoots, and the dense branches and leaves will affect the growth of the inner layer of branches and buds, and the light will not be enough to collapse, and the bud maturity will be insufficient, and it will be difficult to form flower buds normally, and it will not bear fruit in the later stage. There are many rainy days, wet plants or long-term high temperature weather, and the leaves are prone to drought and lack of water, which affects the growth of flower spikes and leads to normal fruit in the later stage.

Insufficient fertilizers make it difficult to provide enough nutrients to sustain growth. The grapes grow vigorously in summer and autumn. Nutrients should be replenished.

Insufficient nutrients may not produce fruit. Apply the buds appropriately, when the tips of the bird are 15-30 cm, tie the vines in time, remove the curls, pluck the top, remove unnecessary appendages, and ignore the flower at any time. Firearms add quick-acting fertilizer within 10-15 days to remove weeds, firearms, berries and colorants are not suitable for watering, take the fruit to replenish water in time, according to the meteorological conditions can be watered.