Nitrogen-lime, granulated

N — 27%, CaO — 4%, MgO — 2%

Highly effective granular nitrogen fertilizer for cereal, fodder, oilseed, fruit and vegetable crops, sugar beet

Suitable for all soil types and positively affects their fertility

Regulates vegetative mass growth, increases crop yields

It is a blend of ammonium nitrate and ground limestone, non-hygroscopic, does not cake and is safe for storage

Has good blending properties for fertilizer mixtures due to high granule strength and coarse granule composition

Nitrogen-lime fertilizer (NH4NO3 CaCO3 MgCO3) — a promising nitrogen fertilizer, physiologically neutral, representing a mixture (blend) of ammonium nitrate and ground limestone or dolomite. Contains 27% nitrogen, 4% calcium, and 2% magnesium. Depending on its composition, the fertilizer is called: lime-ammonium nitrate or ammonium nitrate with dolomite. Granulated fertilizer (granules 1-5 mm), suitable for mixing with phosphorus and potassium fertilizers.

Compared to ammonium nitrate, it has better physicochemical properties, is less hygroscopic, less prone to caking, and can be stored in stacks.

Nitrogen-lime fertilizer can be used on all soil types and for all agricultural crops as a main, pre-sowing fertilizer, and for topdressing. The fertilizer contains calcium and magnesium carbonates. Its application is especially effective on acidic and saline soils, light-grained soils, and magnesium-deficient soils.

Physicochemical properties

TU 2189-064-05761643-2003

Parameter Value

Mass fraction of total nitrogen, %: 27

Mass fraction of nitrogen in nitrate form, %: not more than 14

Mass fraction of calcium oxide, %: not less than 4

Mass fraction of magnesium oxide, %: not more than 2

Mass fraction of water, %: not more than 1.5

Granulometric composition. Mass fraction of granules by size:

less than 1 mm, % not more than 3

from 2 to 5 mm, %, not less than 92

more than 6 mm, %, not less than —

Static strength of granules, MPa (kgf/cm2), not less than 3

Flowability, % 100

Classified as flammable substances, explosion-proof.

Supplied in packaged form (bags, BIG-BAG) and unpacked (bulk). Stored in dry, closed warehouses.

Transportation is allowed by all means of transport except air, in accordance with the rules for transporting goods applicable to the given mode of transport.

The stabilized form of ammonium nitrate has significant importance in terms of safety and noticeably simplifies the purchase of this fertilizer.

Application

The fertilizer creates optimal conditions for nitrogen nutrition of plants, and the presence of calcium and magnesium carbonates makes calcium nitrate especially effective for use on acidic soils.

The main method of application is surface application, either incorporated into the soil or left on the surface. For vegetable crops, it is applied broadcast or in bands, as well as at sowing/planting in small doses (7-15 kg N/ha) in rows or holes.

For winter cereals, the main nitrogen fertilizer is applied shortly before sowing. Most of the nitrogen fertilizer is applied as topdressing. Recommended topdressing rates are 10-30 kg N/ha for the first application and 15-40 kg N/ha for the second. Application timing is strictly determined by plant growth stages. Application rates for silage crops vary from 40 to 90 kg N/ha and depend on the application of organic fertilizers. To increase protein content in sunflower, topdressing at 30 kg N/ha during the period of intensive growth is recommended.

According to data from the Stavropol Research Institute of Agriculture (2005-2007), average yield increases from applying lime-ammonium nitrate are as follows: for winter wheat on typical chernozem — 3.4-7.1 centners per hectare, on chestnut soil — 4.0-6.1 centners per hectare; for spring barley — 2.5-3.7 centners per hectare and 6.2-7.3 respectively; for silage corn — 28-63 centners per hectare; for sunflower — 0.8-1.3 centners per hectare. Topdressing of winter wheat with lime-ammonium nitrate increased the raw gluten content in grain by 2.5% compared to regular nitrate. It also resulted in higher gluten quality compared to other nitrogen fertilizers. Application of lime-ammonium nitrate under corn on high phosphorus background (P60) increases crop response to applied fertilizers more than fourfold.