What is the reason for the whitening of the particles of the clay?

You are talking about the relatively common phenomenon of "turning alkali" in our agricultural production. With the evaporation of water, a layer of alkaline substance will be brought up on the surface, which is not good for the growth of crops, and it is best to use siphon for watering in the future.

To put the pot in a small shallow pot filled with water, let the flowers absorb the water on their own. It won't be because of osmotic pressure.

The reason is that the alkaline substances in the soil are attached to the soil surface with the evaporation of water, and it should be noted that your flowers are not suitable for growing in alkaline soil. It should be combined with peat vermiculite.

and other organic substances are mixed. To prevent and control soil alkali, it is necessary to change the potted soil frequently to reduce the accumulation of alkaline substances. Wish.

The term "Pottery Nutrient Soil" is not, the seller told you, the particles you are talking about, is the ordinary barbecue soil particles, no nutrition, in horticulture, only the role of beautification and fixed plants, now there is white on it, because the particles are alkaline, and on the surface of the pot, with the evaporation of water, so it will form salt, waste of inorganic fertilizer "various metal ions".

The whitish discoloration on the particles of the clay-shaped nutrient soil may be due to the following reasons:

1.After the water in the nutrient soil evaporates, the alkaline substances (such as carbonates) on the surface precipitate and appear white.

2.The main function of ceramsite is to breathe and form a good aggregate structure, and it does not contain organic substances, so it cannot provide nutrients. Adding organic substances such as peat vermiculite to ceramsite can improve the fertility of the soil, but in some cases, the surface of the ceramsite may turn white due to the penetration of alkaline substances.

If you find that the particles of the clayed nutrient soil are whitish, you can try pouring some vinegar or acidic substances to improve the pH of the soil. In addition, regular replacement of potting soil can also reduce the accumulation of alkaline substances.

Hello dear, it is generally organic fertilizer.

Normally, the particles of nutrient soil or rare earth are very small and take a longer time to form a suspended state. After filtration and precipitation, it will be very clear.

There should be no white material in the peat, and if there is one, it should be used perlite. It is best to find a peat-soil manufacturer to consult the products that should not be used.

Hello friends: "Perlite" is a kind of floral substrate material that insulates and moisturizes and enhances breathability.

It is the manifestation of soil alkali resistance, and it is time to change the soil.

It could be fertilizer or foam.

I don't know, I haven't seen it

The small white stone is perlite, which was added to prevent soil compaction, and is an addition to the flower soil.

**Expanded perlite is a non-toxic, tasteless, non-flammable, non-corrosive, acid and alkali resistant, heat preservation, sound insulation, internal honeycomb structure product, is made of acid volcanic vitreous lava (perlite) by crushing, screening to a certain particle size, and then preheated, at a high temperature of more than 1400 times delay sintering and made of a white or light-colored high-quality thermal insulation material, can be prepared with different binders such as hydrophobic perlite insulation board, perlite sound-absorbing board, partition board, fireproof board, etc.

The product is mainly used for thermal insulation and thermal insulation of building roofs and walls; lightweight aggregates for building materials; various industrial equipment, pipeline insulation; The inner wall of various cryogenic and cold storage projects;

It is also an essential auxiliary material for soilless cultivation in agriculture and horticulture, soil improvement, water and fertilizer retention.