Why can’t you plant grapes on the balcony? What are the taboos to pay attention to?
On the one hand, grapes cannot be grown on the balcony, because grapes are easy Recruit some insects and snakes; on the other hand, it is because the grapes themselves have high requirements for the growth environment, and the balcony cannot support the normal growth of the grapes whether it is light, soil, water, or weighing.
Introduction of grapes
Vitis vinifera is a woody vine of the genus Vitaceae, with cylindrical branchlets, longitudinally ribbed, glabrous or sparsely pubescent, oval leaves, dense or scattered panicles, basal part The branches are developed, the fruit is spherical or oval, the flowering period is April-May, and the fruiting period is August-September.Grape is one of the oldest fruit tree species in the world.The plant fossils of grape have been found in Tertiary strata, indicating that it has spread all over Europe, Asia and Greenland at that time.Grapes are native to western Asia and are cultivated all over the world.About 95% of the grapes around the world are concentrated in the northern hemisphere.
Can grapes be planted on the balcony?
1.Insect and snake
After planting vines at home, it will attract many insects and even snakes.This is indeed the case.Generally, after the vines bear fruit, various mosquitoes will run to the vines, and they will often be bitten under the vines.If snakes are attracted, it is very dangerous, so this should be the case.The main reasons why you can’t grow grapes at home.
2.Unsuitable environment
Temperature
The minimum temperature required for grape growth is about 12℃-15℃, and the minimum ground temperature is about 10℃-13℃.The optimum temperature for the flowering period is about 20℃, and the optimum temperature for the fruit expansion period is 20℃-30℃.If the temperature difference between day and night is large, the coloring and sugar content are better.After the grapes germinate in spring.If the temperature rises rapidly, it is easy to cause leggy branches, which are manifested as unfulfilled knots, and poor fertilization during the flowering period.
Moisture
Grapes have high water requirements.Strict control of soil moisture is a prerequisite for growing grapes well.Grapes need more water in the early growth period or vegetative growth period.In the late growth period or fruiting period, the roots are weak and require less water.It is necessary to avoid damage to the roots to avoid affecting the quality.Grapes avoid rain and dew.In rainy years, it is easy to cause insufficient sunshine and limited photosynthesis.Excessive absorption of water can easily lead to leggy branches and high humidity, which can easily cause various diseases, such as black pox and gray mold.Therefore, it is ideal to keep the branches at 40-70 cm in the flowering period as much as possible; the irrigation amount during the fruiting period in areas prone to fruit cracking should also be controlled.Water-deficient and drought-prone areas should be properly covered with straw to maintain soil moisture and control grass growth.
Light
Grapes must have a certain intensity of light during the normal growth period, but when the light is too strong, especially when the grapes enter the hard-core stage, sunburn is more likely to occur.When taking bagging or planting leaves, try to keep the leaves that can cover the grape fruit.When the sunshine is insufficient, it is easy to cause poor corolla shedding during the flowering period and low fertilization rate; poor flower bud differentiation during the flower bud differentiation period, and many parthenocarpy fruits; No fruit or single fruit; disease and poor quality at the expansion stage of the fruit; poor coloration at the mature stage, and the sugar content decreases.
Soil
Although grapes can be cultivated in various soils (after improvement), loam and fine sandy loam are the best, although the sandy soil has good air permeability.But the ability to retain fertilizer and water is poor.Loamy soil is between sandy soil and clay soil.Its ability to retain water and fertilizer is strong, and most of them are relatively fertile.When the grapes grow vigorously, it is easier to flower and parthenocarpy.When the high temperature and light conditions are good, the fruit is good and the yield is high.When the temperature is low and there is little sunshine, the results are not very good and the yield is low; usually pay attention to drainage, avoid exploration tillage, prune lightly in winter, and prune more in summer, and spray borax, potassium dihydrogen phosphate and superphosphate.Clay soil has poor air permeability, but it retains fertilizer and water well, and nutrient decomposition and absorption are slow.In the early stage, there are fewer leggy phenomena, flowing flowers and unisexual fruits, but it is easy to grow leggy in the later stage of development.Although the fruit ear is large, the sugar content and meat quality are often not good.It should be improved by applying more high-carbon organic matter or adding a small amount of sand.It is best to use an appropriate amount of lime to neutralize the acidic soil.
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