How to Restore Acidified Soil Fertility in Black Earth Region: Science-based Approach and Savings up to 30%

Intensive farming and heavy use of mineral fertilizers in the Central Chernozem Region (CCR) are gradually acidifying its black earth soils. Elevated soil acidity can cost farms a significant share of their harvest, even as they increase applications of expensive nitrogen and phosphorus complexes.

Chemical soil amelioration offers a way out. Grade C dolomite flour produced by NLMK does more than neutralise acidity — it works as a complete plant nutrition tool and a long-term investment in soil quality.

🔥 Special offer for new customers: 30% off Grade C dolomite flour

Agricultural enterprises planning to lime their fields this season can take advantage of a special offer:

• Discount: 30% on your first order of Grade C dolomite flour.
• Valid until: 30 September 2026 inclusive.
• Condition: minimum single order volume — from 300 tonnes.
• Who is eligible: new customers with no shipments of Grade C dolomite flour over the past 12 months.
• Offer limit: the total discounted volume is capped at 5,000 tonnes.

To place an order or request details, call our central sales line: +7 (800) 511 30 39 or visit NLMK.SHOP.

Why acidic soil “locks up” your fertilizers

The main problem with high acidity is that it undermines the mineral fertilizers you have already applied:

• Phosphorus uptake is blocked as it converts into forms plants cannot access.
• Nitrogen nutrition becomes less effective.
• Aluminium and manganese turn toxic to roots and suppress their development.
• Plants cannot build a full root system or draw on the soil’s resources.

An agronomic fact: liming does not replace fertilizers. It increases the return on every kilogram of NPK you apply.

Dolomite flour versus limestone flour: what is the difference?

Unlike conventional limestone flour, dolomite flour solves two key problems at once: it reduces acidity and replenishes a magnesium deficit.

Criterion	Dolomite flour	Limestone flour
Acidity neutralisation	✔	✔
Source of calcium (Ca)	✔	✔
Source of magnesium (Mg)	✔	✖
Improved photosynthesis	✔	Partially
Higher NPK efficiency	✔	✔
Improved product quality	✔	Limited
Duration of effect	Longer	Shorter

Proven by research: how dolomite flour works

1. Magnesium — an irreplaceable driver of productivity

While calcium normalises pH, magnesium directly shapes the coming harvest:

• It is the central atom in the chlorophyll molecule.
• It participates in ATP synthesis and activates over 300 plant enzymes.
• It accelerates carbohydrate transport and protein accumulation.

2. Gradual, gentle action

The mineralogical structure of dolomite releases calcium and magnesium gradually. The pH stabilises smoothly, without sharp swings, keeping the soil saturated with bases over the long term and reducing the risk of re-acidification.

3. An effect that lasts 10 years

Long-term studies show that a single application of dolomite flour delivers a yield gain for at least 10 years. Field trials recorded the following yield increases:

• Peas: up to +158%;
• Mustard: up to +51%;
• Beans: +14–48%;
• Barley: +29–39%.

The practical payoff for agribusiness — lower spending on mineral fertilizers

1. The pH stabilises and heavy metals become less mobile in the soil.
2. Mineral fertilizers are absorbed in full, cutting your procurement costs.
3. Yields rise, along with the quality of marketable grain, sugar beet, and sunflower.

Take advantage of this offer before the end of summer and lay the groundwork for healthy soil across your fields for years to come.

Scientific sources

1. Lukin S.V. “Monitoring of the agroecological condition of arable soils in the Central Chernozem Region of Russia”, Agrokhimiya, 2023.
2. Lukin S.V. “Dynamics of the agroecological condition of soils in the Belgorod Region”, Pochvovedenie (Eurasian Soil Science), 2023.
3. Vitkovskaya S.E. “The effect of the long-term residual action of liming sod-podzolic soil with dolomite flour…”, Agrokhimiya, 2022.
4. Vitkovskaya S.E., Litvinovich A.V., 2020–2024 (RCSI Journals Platform).

📄 Official offer disclaimer

Please note: the offer is limited. The 30% discount is available only to new customers with no shipments of Grade C dolomite flour during the 12 (twelve) calendar months preceding the order date. The discount applies solely to a new customer’s first order, with a single purchase volume from 300 (three hundred) tonnes. Repeat and subsequent shipments are charged at the standard price list rate without the discount. The total volume of product sold at a discount under this offer is 5,000 (five thousand) tonnes. The offer runs from 1 to 30 September 2026 inclusive (or until the 5,000-tonne limit is exhausted, whichever occurs first).

Legal notice

This advertising message is provided for information purposes only and does not constitute a public offer (Article 437 of the Civil Code of the Russian Federation). Product quantities under this offer are limited. For detailed terms, the current status of the volume limit, and exact delivery costs, please contact our sales managers.