Good soil for seedlings

It came to sowing my experimental tomatoes. The idea is described here

The seeds hatched successfully, 100%. What I soaked in, read here

I planted it in good soil. Isn't it too bold a statement: good? I'll tell you what meaning I mean by this word. Below I wrote how I chose.

Good soil, in my opinion

• In which seeds germinate and grow successfully
• Which does not sag 2 times at the first watering and does not compact to disgrace
• Without insects flying out and crawling out on seedlings at its tender age
• Without putrefactive microflora and other byak

Beware of dirt in supermarkets. I didn't run up, but people had such passions...

My seeds still like everything, they are already sprouting. The picture for January 7 is this:

The first shoots appeared on January 6, not all the tomatoes have emerged yet.

Purchase logic :)

The logic turned on when reading the cherished words on the door of a well-known garden store: 20% discount :) In fact, of course, this is not the main factor.

I bought soil "For seedlings", this is important. It has significantly less nitrogen in comparison to other names such as "For tomatoes". Nitrogen and phosphorus are antagonists; phosphorus is needed for rooting.

The substrate is not my favorite. But it was tested on a reputable site. The result is good for everyone. I bought a bag. With him and the beginning of the season.

I will not write the manufacturer, so as not to be considered an advertisement, but in the comments write your favorite types of purchased soil. And who makes his own substrate - it will be pleasant to read.

There were many inclusions of undecomposed organic matter in the soil. This is usually considered a disadvantage, the substrate is sorted out or sieved. I left all this stuff for the multiplication of bacteria. Nothing wrong.

How I prepared the soil mixture

I prepared the soil mixture very simply, I added a handful of Diatomite to 2 liters of purchased substrate. And that's all.

I decided that Diatomite is better than vermiculite and agroperlite. Because it's porous. At the same time, it is a source of silicon available to plants. I have already added it to the tomatoes, it worked out fine, now I added it earlier and more.

For seedlings at this stage, almost nothing is needed, it will germinate in vermiculite on seed reserves. Then I will choose more carefully what to add to the purchased substrate.

How is your relationship with the soil going?

I would be grateful for your subscription and communication :)