The Cultivation of Twelve-volume - A Little-known Aspect of Sunshine
The editor answers the introduction of knowledge about the cultivation of Twelve-volume for netizens, the cultivation of Twelve-volume - a little-known aspect of sunshine, let's take a look!
In the cultivation of Twelve-volume, the consensus about sunshine has basically been formed, that is: long-term scattered light! Among them, there is more shading in summer and less in spring and autumn, and even in some northern regions, even the Yulu, which does not like sunshine, can be exposed to the sun in autumn.
But among the replies and discussions of many posts talking about sunshine, there are always a few people grumbling: sunshine is still needed, and it grows better with sunshine. Moreover, these people are often masters who have raised many Twelve-volumes. This involves a question: is the sunshine after shading better, or scattered light better? Of course, the scattered light here specifically refers to the light reflected from nearby, which cannot be directly hit by the sun. For example, the open space on the north side, although there is no direct sunlight, the scattered light from everywhere can make the light intensity value reach more than 10000.
About this comparison, it seems that no post has given a clear analysis.
My view is that the scattered sunshine after shading is the best, (of course, for greenhouses, this scattered sunshine is evenly filtered, and we don't feel scattered when we look at it with the naked eye, only the intensity of the sun is a bit weaker).
There are several reasons for this. First, sunshine has the effect of promoting the growth of roots in Twelve-volume, and real sunshine is always better than reflected light from elsewhere, and the light is more comprehensive. The scattered sunshine spots on the leaves, some people say, won't the illuminated part get sunburned? In fact, the sun is constantly moving, the sunshine in the hollow part of the sunshade net is also constantly moving, and the sunshine hitting a certain part of the leaf is also constantly moving. Of course, if it is not possible to have long-term scattered sunshine, strong scattered light is also good. This point is easy to understand.
But direct sunshine also has another benefit that scattered light does not have, which may not have caught everyone's attention, that is, the effect on temperature difference. Placing a thermometer in the sun and placing it in a place where the sun cannot shine directly in the greenhouse is different. For example, the overall temperature in the greenhouse is 35 degrees, but sometimes the thermometer placed directly in the sun even exceeds 40 degrees. The direct sunshine hitting the leaves may bring a temperature higher than the surrounding environment. For example, in autumn, the overall temperature at noon is 25 degrees, but the moment the sun directly hits the leaves may bring a temperature of 30+ degrees, or even higher. The impact on the local environment and the pot wall is the same, which increases the temperature difference relative to nighttime. The effect of temperature difference on the growth of Twelve-volume in the process of cultivation does not need to be repeated by me, right?
A personal view, and any shortcomings can be laughed off.
The comprehensive method explanation of the cultivation of Twelve-volume - a little-known aspect of sunshine brought above, I hope it can play a role in solving your green plant problems.