Customer Feedback
Grapes（Saitama）
Why did you introduce Nano Bubble?
・Vines have unusual habits, and if the roots are not healthy, the tree will suck nutrients from the leaves and fruits, causing the leaves to wither or wilt.
・It is very important that the roots of the grapes are alive, By adding oxygen to the roots with nanobubble water, we thought that the leaves would be alive when the roots were healthy.
In what environment is it grown?
My father was doing hydroponics in an agricultural greenhouse, and I was growing grapes in a corner of the greenhouse. After the Great East Japan Earthquake, my father retired from hydroponics and I took over the farming and decided to specialize in growing grapes in the entire greenhouse.
Normally, open-field cultivation is susceptible to rain and climate, and the crop varies from year to year.
However, with greenhouse cultivation, I can control my irrigation without being influenced by the climate.
Therefore, I thought it would be easy to compare and verify the results of irrigating with and without nanobubble water.
The medium is a quarantine medium, with compost added initially and annually.
For calcium, he gets oyster shells from a nearby oyster restaurant and adds them.
The irrigation method is to wrap a drip irrigation hose around the tree trunk about 45 cm from the trunk and pump up water with the hose to irrigate.
Nanobubble water is also used for pest control as dilution water, which is done five times a year (spring: from dormancy to bud, before flowering, after fruiting, and after harvest).
How was the effect of Nano Bubble?
Since 2018, I have been observing the difference in growth with and without nanobubbles from the stage of young trees.
In the second year, the trees with nanobubbles had thicker and more vigorous stems.
Clearly, I realized that the trees that used nanobubble water had larger leaves and grew faster. Trees using tap water had slightly smaller leaves.
As of 2022 (the fourth year), those with nanobubbles will grow about one year faster, to put it mildly.
Yield of Nanobubble area was about 1.5 times higher: 33 bunches/tree compared to 17 bunches/tree without Nanobubble.
How was the effect of Nano Bubble?
In 2023 (5th year), the nanobubbles are growing more branches. As for the branch growth, it is difficult to say it is a result because it may be artificially stopped in relation to the surrounding trees, but if the nutrients reach the tips of the branches, they are left. As a rule of thumb, we try to leave 4 bunches per square meter in the end.
As of June 2023, the difference in the number of bunches is 80 bunches in the nanobubble area and 70 bunches in the tap water area.
Frankly speaking, my impression is that nanobubble water is suitable for growing young trees. On the other hand, it is difficult to see changes in trees that have matured to some extent.
If grapes are given too much nutrition, their growth will be unbalanced, and they will fly away.
Therefore, fertilizer and water are strictly required to produce fruit.
The grapes are harvested around August after a harsh environment is created. At that time, the final yield is known.
