5 additives (fertilizers and deoxidizers), which I definitely add to the soil for digging
In the fall, I always dig a vegetable garden. After harvesting, I plant siderates in early September, which in October I plant in the soil along with fertilizers. What do I bring in for digging a site?
Superphosphate
In October, I buy double superphosphate (or simple). I bring in 150-200 grams per 1 sq. meter. It is not necessary to scatter it over the surface, but it is necessary to bury it in the soil to the depth of the root system of future crops.
Thus, the superphosphate granules must be sealed to a depth of 10-20 cm. This fertilizer decomposes for a long time, so it needs to be applied in the fall.
Ash
The next thing I bring in for digging is wood ash. It is a source of not only potassium, but also other nutrients, including phosphorus, magnesium, sulfur and calcium. You will need 1 liter of ash per 1 sq. meter.
I get ash in the fall by burning plant residues in the form of foliage, cut branches of trees, plant stems, tops. I distribute the entire burnt mass over the garden plot.
Manure
Rotten manure can be added from organic fertilizers (but fresh manure can be put in in the fall). This organic matter contains useful microflora that contributes to the formation of humus. Potassium and phosphorus are contained in an accessible form, and nitrogen remains in the soil for a long time.
The manure rate is 2-3 kg per 1 m2 for sandy soils. For clay - 6-8 kg per 1 m2.
Peat
Peat is a soil conditioner that makes the soil porous, loose and airy. It is good to apply it on heavy clay soils. In the fall, 4-5 kg of peat are applied per 1 m2.
Deoxidizers
Also, once every three years I add chalk, lime or dolomite flour to the site, because the earth oxidizes over time, especially with the introduction of nitrogen fertilizers.
Lime must be applied in the fall. And chalk and dolomite flour can be added in the spring.