Root trimming skills of succulent plants succulent plants should be watered

Today's topic is to watch light watering. See, light watering is a slang invented by myself. I used to think that watching only watering sounds as cool as Darwin's elders' natural selection and survival of the fittest, so I often show it out in front of novice buddies. Basically, few people ask me face-to-face what it means to watch light watering, so I have been using this slang for so many years but I am at peace with each other.

When I use the words "watch light watering" to answer meat friends' questions about watering, I often receive very straightforward feedback from meat friends: what do you mean watch light watering?

I thought about it myself. It is easy to understand the literal meaning of watering, that is, more watering when there is plenty of sunshine, and less watering if there is not enough sunshine. However, such an understanding does not seem to have any practical guiding significance. Well, let's talk in detail today to see what it means to be watered.

How did the water in the flowerpot not fall off? There are only three ways: first, soil evaporation caused by sunlight on the soil surface. Second, the transpiration of meat. Third, meat stores water or photosynthesis uses water.

Among them, the third way of water storage and photosynthesis (growth) of meat is what we think is the most meaningful way to use water, but this part accounts for the smallest proportion, generally less than 1%. If it is really watered to grow to the flesh, then she is not meat, but a vegetable.

First of all, let's talk about how sunlight affects the evaporation of soil water. Sunlight has a great effect on moisture in the soil. Sunlight on the soil surface can heat up the soil surface and promote the evaporation of water in the soil.

So is it true that the stronger the sun is, the faster the water in the soil evaporates? Not necessarily, it is directly related to the water retention of the soil.

What we usually call granular soil breathes through the gaps between particles and transmits water through the gaps within the particles and the contact points between the particles. When sunlight hits the soil surface, the soil surface heats up, providing the heat needed for water evaporation, and the water contained in the topsoil begins to evaporate. The water in the deep soil is raised upward by siphon and supplied to the soil surface. And then evaporated.

When the water in the topsoil evaporates, the voids in the topsoil will be filled with water vapor. Let's imagine the process of steaming steamed buns. The fire provides heat at the bottom, and the water vapor will rise, and then cross the steamed buns and steam them.

I wonder if you have ever thought that water vapor is actually heavier than air, why it keeps rising instead of falling? It is because there is constant water vapor coming out of the water, causing the pressure of the water vapor near the water surface to be very high, so it pushes the water vapor to move up to the lower pressure.