Every term Ukrainian farmers need to know — defined.

A pesticide targeting plant mites (spider, gall, rust). Critical for orchards, grapes, soy, and greenhouses. About 3–5% of Ukraine's crop-protection market. Leading products: Envidor (Bayer), Vertimec (Syngenta), Ortus (Arysta).

The chemical compound in a pesticide that directly kills pests, weeds, or disease pathogens. The other components are fillers, stabilizers, and surfactants.

A 32.5% urea solution in demineralized water per ISO 22241, injected into the exhaust of SCR-equipped tractors to convert NOx into N₂ and water. Consumption is 3–7% of diesel use. Ukraine April 2026 price: UAH 28–55/L depending on packaging.

A helper agent added to tank mixes to improve crop-protection product efficacy — better wetting, penetration, leaf adhesion, or water pH adjustment. In Ukraine it demonstrably adds 15–35% to herbicide efficacy when chosen correctly.

Parts from independent manufacturers compatible with original equipment. 3 quality tiers: OES (factory suppliers under their own brand), reputable independents (Donaldson, Baldwin, Bosch, NSK), and no-name brands (service-life risk >70% shorter).

A form of acquiring agri-machinery via long-term leasing (3–7 years) instead of outright purchase-credit. State-owned Ukragroleasing: 9–11% p.a.; private: 12–17%. Regulated by Law 1201-IX «On Financial Leasing».

Ammonium nitrate (NH₄NO₃) is a nitrogen fertilizer with 34.4% N in two forms: 50% nitrate (fast-acting) + 50% ammonium (slow-release). The standard topdressing fertilizer for winter cereals in spring. April 2026 price: around UAH 18 500/t [VERIFY].

Ammonium sulfate ((NH₄)₂SO₄) is a nitrogen-sulfur fertilizer: 21% N as ammonium + 24% S as sulfate. Optimal for high-S-demand crops: rapeseed (up to 80 kg S/ha), sunflower, brassicas, legumes.

ATS is a liquid sulfur-nitrogen fertilizer with 12% N + 26% S. Density 1.32 kg/L. The most concentrated source of liquid sulfur. Full compatibility with UAN-32 in tank mixes enables simultaneous N + S application through a single system.

An allowlist of plant protection products, fertilizers, and soil improvers permitted in organic production under Regulation (EU) 2018/848 Annex II. Distinct from the marketing label «organic-approved» — Annex II is a binding legal list.

A device that automatically switches loads between the main supply (grid) and backup (generator, solar, battery) when voltage is lost. Per DSTU IEC 60947-6-1, a mechanical interlock preventing parallel feed is mandatory.

Autosteer is a system that automatically drives a tractor (combine, self-propelled sprayer) along preset parallel lines based on a GPS signal. The operator handles turns and monitors the implement. Main vendors: John Deere StarFire + AutoTrac, Trimble EZ-Steer, Topcon X-series, Claas CEMIS, FJDynamics.

Days between two consecutive calvings. Optimal for dairy cows: 380–400 days (gestation 280 + dry period 60 + service period 40). Ukraine's actual average is 430–450 days — costing UAH 500–900/cow/year in missed lactation cycles.

CAN is a nitrogen fertilizer with 27% N enriched with calcium and magnesium via dolomite or limestone (up to 6% CaO + 4% MgO). Physiologically neutral — doesn't acidify soil, unlike ammonium nitrate. Suited to acid soils of Polissia and Carpathian zones.

An EU mechanism under Regulation (EU) 2023/956 amended by 2025/2083 that taxes imports of carbon-intensive goods (including nitrogen fertilizers, ammonia, steel). Transition phase 2023–2025 = reporting only; payment starts 2026 at net €1.8/t NH₃-equivalent → €40/t by 2030 → €80/t by 2034.

CE marking certifies a product's compliance with EU requirements under Regulation 2019/1020 (market surveillance) and sectoral directives. From 20.01.2027 the new Machinery Regulation 2023/1230 will replace Machinery Directive 2006/42/EC. Mandatory for EU exports.

A measure of diesel fuel ignitability: the higher, the shorter the lag between injection and self-ignition in the cylinder. DSTU 7688 requires CN ≥51 for all grades. Adulterated fuel (cut with kerosene or used oil) often has CN 42–48 → poor cold start, knock under part load, +3–6% fuel consumption.

CFPP (Cold Filter Plugging Point) — the temperature at which diesel paraffins plug the filter. Per DSTU 7688:2015, winter diesel has CFPP of −20°C. Biocide additives (Grotamar 71/82) prevent microbial growth in tanks during long storage.

A chelate is a complex of a micronutrient (Fe, Zn, Cu, Mn, Mg, Ca, B) with an organic ligand (EDTA, DTPA, EDDHA, HEDTA) protecting the ion from soil precipitation. Delivers 5–10× higher plant uptake efficiency than sulfate forms.

The world's most fertile soil type, formed under steppe vegetation on carbonate parent material. Ukraine's chernozems cover ~27 million hectares (54% of territory) with 3.5–6.5% humus content — the foundation of Ukrainian agriculture.

A BASF technology combining sunflower hybrids with genetic tolerance to the imazamox herbicide (Pulsar/Euro-Lightning, HRAC 2) with the herbicide itself. Covers about 55% of Ukrainian sunflower area.

The Convention on the Contract for the International Carriage of Goods by Road (Geneva 1956). Establishes unified documentation (CMR waybill) and carrier liability up to 8.33 SDR/kg. Key for Ukrainian road exports to the EU.

A cow's first milk after calving (0–24 h) with high immunoglobulin content (IgG 50–150 g/L). The calf's only source of passive immunity, which it does not receive in utero. The 5-Q rule — ≥50 g IgG/L, Brix ≥22%, dose ≥4 L within 2 h.

Combine class is the grading of grain combines by throughput, determined mainly by threshing drum width, engine power, and separation area. European classification: class 5–6 (entry, 200–270 HP), 7–8 (mid, 280–400 HP), 9–10 (premium, 400–600+ HP).

A strategy to lock future grain prices via futures contracts on MATIF (Paris) or CBOT (Chicago) for protection against price drops. In Ukraine, accessible via IBKR, ADMIS, StoneX. Used by 20–30% of 500k+ ha agri-holdings.

An electronically controlled diesel fuel system with 1,600–2,500 bar working pressure, where a shared rail feeds all injectors independently of stroke. Standard on Stage V / Tier 4 Final tractors; demands high-quality fuel and β4 ≥200 filters.

A companion crop is a plant grown together with the main crop on the same field for ecological or agronomic benefits: attracting pollinators, suppressing weeds, fixing nitrogen, creating microclimate. Forms: strip, row, fully mixed cultivation.

Concave clearance is the gap between the threshing drum (rotor) and the concave of a combine. Adjustable at front and rear separately. Typical values: wheat 10–14 mm (front) / 2–5 mm (rear); corn 20–35 mm / 10–15 mm; sunflower 30–40 mm / 15–25 mm; rapeseed 8–12 mm / 1–3 mm.

Two main modes of crop-protection action: contact (product acts only where it lands on the leaf surface) and systemic (absorbed into the plant and translocated via xylem/phloem to all tissues). The choice affects dose, PHI, and rainfastness.

Full per-hectare production cost for one season — the sum of seed, fertilizer, crop protection, fuel, land rent, labour, machinery depreciation, insurance, and overheads. For Ukrainian winter wheat 2025/26: UAH 29,000–34,000/ha (average).

Cover crops are plants sown in the inter-crop period (between two cash crops) to protect soil from erosion, accumulate nutrients, suppress weeds, and support biodiversity. Typical Ukrainian species: white mustard, oil radish, phacelia, vetch, field pea, forage rye.

The atmospheric relative humidity threshold above which a fertilizer begins absorbing moisture and caking. Urea CRH ≈ 72%, ammonium nitrate ≈ 58%, DAP ≈ 77%, KCl ≈ 85%. Drives storage protocol and seasonal procurement windows.

Insurance against yield-loss risks (hail, rain, drought, frost, multi-peril) under Ukraine's Law 4391-VI. The 2026 state budget allocates UAH 60M for 50% premium subsidies. Rates: 2–8% of insured amount depending on crop and region.

Crop rotation is the planned sequence of crops on a field over time for: maintaining soil fertility, breaking pest and disease cycles, weed control, and optimizing water and nutrient balance. Mandatory under DSTU 6066:2008 and NAAS recommendations.

A stepless hydrostatic-mechanical transmission that smoothly regulates speed from zero to maximum without gear shifts. Reduces fuel consumption by 8–12% versus PowerShift.

A standardized cow productivity metric that normalizes milk to reference 3.5% fat and 3.2% protein. Used to compare breeds, herds, and seasons. ICAR formula: ECM = 0.327 × M + 12.95 × F + 7.2 × P.

Ukraine's Unified State Register of Enterprises and Organisations — an 8-digit identification code for legal entities, set by Law 755-IV. Mandatory for all B2B transactions in Ukraine; publicly verifiable via usr.minjust.gov.ua.

A negotiable instrument under Ukraine's Law 2654-IV certifying grain storage in a licensed elevator and conferring the right to its retrieval. Roughly 180 certified elevators operate in Ukraine (April 2026). Electronic eWarehouse via Diia is in development.

Two key combine counters: engine hours (total engine run-time) and separator hours (actual threshing-separation time). Their ratio (sep/eng) is a key condition indicator for used combine purchases. Ideal ratio 0.7–0.85.

The EU Common Agricultural Policy — the main European farmer-subsidy system. 2023–2027 budget: EUR 387 billion. Ukraine as a candidate received a dedicated chapter (Chapter 11) progress update in 2025, opening a path to partial CAP access by 2027–2030.

Duty-free access for Ukrainian agri-exports to the EU under the upgraded Association Agreement (DCFTA) in force from 29.10.2025 per EU-Ukraine Association Council Decision 3/2025, after the Autonomous Trade Measures (ATM Reg 2024/1392) expired on 5 June 2025.

EU Regulation on organic production and labelling of organic products, in force from 01.01.2022 (consolidated 25.03.2025). Mandatory for all organic exporters to the EU from 01.01.2025 after the third-country transition period ended.

Corteva's sunflower production technology (formerly DuPont) with tolerance to the herbicide Express 50 SG (tribenuron-methyl, ALS inhibitor HRAC 2). Roughly 15–18% of Ukraine's sunflower area is planted to Express Sun, versus ~20–25% Clearfield (2025).

An Incoterms 2020 delivery term where the seller makes goods available ready-to-collect at their own premises. The buyer takes on all transport costs and risks from the point of shipment.

Germination rate is the percentage of seed producing normal seedlings under standardized conditions (DSTU 4138-2002, ISTA International Rules for Seed Testing). Lab germination (LG) reaches 95–98% in quality seed; field germination (FG) is 10–30% lower in real conditions.

A non-selective systemic herbicide, the most widely used in the world. It inhibits the EPSPS enzyme in plants, killing both annual and perennial weeds. Used for pre-emergent treatment.

A cross-reference of Soviet GOST bearing numbers (GOST 520, GOST 8338, GOST 7524) to international ISO/DIN. Critical for MTZ, KhTZ tractor and «Nyva», «Don» combine repair. Key corrected mapping: GOST 7524 = ISO 32224 (was incorrectly listed as 30313 in Batch 1 crossref).

Grain fill is the stage during which formed grains accumulate starch, protein, and lipids. BBCH 71 (watery ripeness) → 75 (milk) → 83 (waxy) → 89 (full ripeness). Duration 25–45 days, critical for TSW and grain quality formation.

A polyethylene tube 2.7–3 m in diameter and 60 m long for temporary in-field grain storage under CO₂ atmosphere. Holds 200–250 t of wheat; 6–9 month storage life. Saves UAH 180–350/t versus elevator storage.

Three solar operating modes: Grid-tied (on-grid, no battery — sells surplus, cheaper), Off-grid (autonomous with battery, no grid — more expensive), Hybrid (grid + battery, most versatile — 95% of new Ukrainian installations in 2026).

IF (Improved Flexion) and VF (Very Improved Flexion) are ETRTO standards for modern radial agricultural tires, carrying the same load at pressures 20% (IF) or 40% (VF) lower than standard tires. Brands: Michelin AxioBib/RoadBib, Trelleborg TM800/TM1000, Mitas HC2000, Continental SVT.

Standardized international trade terms from the International Chamber of Commerce (Incoterms 2020, ICC Pub 723). For Ukrainian grain exports, the most common are FOB Odesa/Chornomorsk/Pivdenniy (risk passes from vessel to buyer), CIF (seller covers insurance+freight), plus CPT and DAP for road transport.

A pesticide targeting insect pests of crops. Per IRAC classification (irac-online.org), 34 numbered mode-of-action groups exist. Insecticides make up roughly 15–20% of Ukraine's crop-protection market by volume.

Transport in standard 20/40-foot containers across truck-rail-sea-river without repacking (only the container moves). Regulated by Ukraine's Law 1887-IX/2021. Used for organic goods, non-GMO soy, and sunflower oil in flexitank.

A classification system for insecticides by mode of action, maintained by the Insecticide Resistance Action Committee. As of Edition 11.5 (irac-online.org), 34 numbered groups exist — rotating between them across the season is the foundation of resistance management.

ISO 8528 classifies diesel generators by operating regime: ESP (emergency standby, 25 h/yr, 5% overload), PRP (prime, 500 h/yr, 10%), LTP (limited-time, 500 h/yr without overload), COP (continuous, 8760 h/yr without overload). After October 2024 Ukrainian blackouts, PRP is the recommended class for farms.

ISO 9001:2015 is the international quality management system standard, implemented in Ukraine as DSTU ISO 9001:2015. ISO 17025:2017 governs testing-laboratory accreditation. Accreditation is granted by Ukraine's National Accreditation Agency (NAAU, naau.org.ua) under framework Law 2406-III.

ISOBUS (ISO 11783) is the international digital communication standard between tractors and mounted/trailed implements of different brands. Implements Universal/Virtual Terminal (UT/VT), Task Controller (TC), Auxiliary Control (AUX-N). Lets you run a John Deere drill from a Fendt terminal and vice versa.

A graph of daily milk yield across lactation: peak at 40–80 DIM (25–35 kg/day in Holstein), then gradual decline to dry-off. The 1:200 rule — peak daily yield × 200 ≈ annual production. Persistence >85% indicates a healthy cow.

A lithium-ion battery with lithium iron phosphate (LiFePO4) cathode — the safest and most durable for stationary energy storage. Cycle life ≥6,000; immune from thermal runaway. Standards: IEC 62619, UN 38.3.

Liquid ballast means filling tractor tires with a special liquid (traditionally CaCl₂ solution, modern use — glycol/propylene glycol + anti-corrosion additives) to increase wheel mass and improve traction. Usually filled to 75% of tire volume. One rear 18.4R38 tire with ballast adds +400–600 kg.

Liquid NPK are solutions or suspensions of NPK in liquid form. Compositions vary: 10-34-0, 11-37-0, 8-24-0 (phosphorus-focused); 6-20-20, 4-14-4 (balanced). Main advantage — application precision and compatibility with crop-protection products and micronutrients in tank mixes.

Lab test of mineral nitrogen (NH₄⁺ + NO₃⁻) content in the 0–90 cm soil profile before spring topdressing. Enables precise N fertilizer rate calculation and saves UAH 300–700/ha versus blanket application. Done February–March.

NBPT is a urease inhibitor molecule that blocks the enzyme catalyzing urea hydrolysis to ammonium in soil. Delays hydrolysis 7–14 days, cutting N losses via NH₃ volatilization from 15–40% down to <5%. Application rate: 1 L NBPT concentrate per 1 t of urea.

A dairy-cattle feed energy metric accounting for digestion, heat, and metabolic losses. Target TMR density: 6.8–7.1 MJ NEL/kg DM. Producing 1 kg of milk requires ≈3.1 MJ NEL.

A nematicide is a chemical or biological agent that controls parasitic nematodes (Globodera, Meloidogyne, Ditylenchus) in soil and roots. Per Ukraine's State Register (mepr.gov.ua) ~8–12 active ingredients are registered — fluopyram, abamectin, and oxamyl being the most common.

A nitrification inhibitor is a substance that slows oxidation of soil ammonium to nitrate by Nitrosomonas and Nitrobacter bacteria. Holds N in stable ammonium form, reducing leaching and gaseous denitrification losses.

NPK is a compound mineral fertilizer containing three primary macronutrients: nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O). The label shows percent content of each, e.g. NPK 16:16:16 means 16% of each macronutrient per tonne of product.

Pelleted seed is seed coated with inert material (clay, chalk, cellulose) to standardize size and weight. Enables precise singulation by pneumatic planters. Standard for sugar beet, carrot, lettuce, onion.

The minimum number of days between the last pesticide application and harvest, set by Ukraine's State Register of Pesticides. Violating PHI causes MRL exceedances and blocks exports — critical under the upgraded DCFTA in force since 29 Oct 2025.

An official document from Ukraine's State Food Safety Service (dpss.gov.ua) certifying that a consignment is free of regulated pests and diseases on export. Mandatory for all Ukrainian grain, oilseed, fruit-and-vegetable, and seed exports to the EU via TRACES-NT.

A Pl1–Pl8+ gene series in sunflower determining hybrid resistance to races of Orobanche cumana (sunflower broomrape). Pl6 suffices for races A–D, Pl7+ for race E, Pl8+ is mandatory for races F+G (Steppe, Crimea, Kherson since the 2010s).

The number of plants or seeds per unit of area. Measured in millions of seeds/ha for cereals and in thousands of plants/ha for row crops (maize, sunflower). It determines yield potential.

Total bacteria count per 1 mL of raw milk, determined by agar plating. An indicator of milking and storage hygiene. Per DSTU 3662:2018: Extra ≤100k CFU/mL, Superior ≤300k, First ≤500k, Second ≤3M.

The acid forest soil of Polissia and the Precarpathian region (pH 4.0–5.5), formed under coniferous-mixed forests. Covers ~10M ha in Ukraine (17% of territory). Requires liming at 4–8 t/ha CaCO₃ for effective agriculture.

Polyhalite is a natural mineral from UK deposits (ICL — trade name Polysulphate) containing four macronutrients in a single granule: 14% K₂O + 6% MgO + 19.2% S + 12% CaO. Unique profile: sulfate-S + calcium in a slow-release, chloride-free form.

Herbicide application on the emerged crop, with weeds already visible. The primary weed-control method on winter cereals in Ukraine (at tillering stage) and on IR sunflower (Clearfield, Express Sun) — covering ~70% of the herbicide market.

The state of Ukrainian irrigated agriculture after the Kakhovka Dam destruction on 6 June 2023. Direct losses of 584k ha (confirmed), up to 1.5M ha including the North Crimean and Main Kakhovka canals. Restoration is estimated at 3–7 years.

Potassium chloride (KCl) is the primary potassium fertilizer at 60% K₂O. Known as MOP (Muriate of Potash) — it accounts for over 95% of global potassium use. Applied on all field crops except chlorine-sensitive ones (tobacco, potato, table-grape vineyards).

Two main modern farm-tractor transmission types from 150 HP: (1) Powershift / PowerQuad / AutoQuad — discrete gears that shift under load via hydraulic clutches, typically 16×16 or 24×24; (2) Vario / CVT / AutoPowr / S-Matic — continuously variable speed control.

Herbicide application before the crop emerges or before mass weed germination. Pre-emergence products make up ~30% of Ukraine's herbicide market — they are the backbone of weed control in soy, sunflower, maize, rapeseed, and sugar beet.

Primed seed is seed that has been partially germinated and re-dried. Metabolic processes are activated but stopped before visible sprouting. After sowing, emergence is 1–3 days faster with more uniform establishment. Technology common on vegetables, sugar beet, sunflower.

The percentage of protein in raw milk — the second key price parameter alongside fat. Ukraine's base rate is 3.0%, with each +0.1% adding UAH 0.30–0.60/kg. For cheesemaking (mozzarella, hard cheese), protein is critical.

Two key diesel-generator ratings per ISO 8528-1:2018 — PRP (Prime Power, unlimited runtime under 70% average load) and ESP (Emergency Standby Power, max 200 h/year at 70% peak load). Choice depends on duty profile.

PTO is a shaft on the rear (sometimes front) of a tractor that transfers torque from the engine to mounted or trailed implements (mowers, sprayers, spreaders, balers). Standard speeds: 540 rpm, 1,000 rpm; on large tractors — 540E / 1000E (economy modes).

A flag on goods originating from the Russian Federation, Belarus, or Iran — banned from import into Ukraine by NSDC / CMU decisions 2022–2025. On ADAM it's stored as `is_sanctioned_origin` column (migration 040): hidden by default in the search sidebar, with ⚠️ badge on opt-in visibility (PR #55). Covers MTZ Belarus, Rostselmash, Belshina, Lukoil etc.

Selective Catalytic Reduction — a technology reducing NOx emissions by 90–95% through AdBlue (urea solution) injection into hot exhaust, where ammonia reacts with NOx over a vanadium or zeolite catalyst. Standard on Stage IV/V tractors.

Section Control automatically shuts off sprayer/drill/spreader sections when entering an already-covered area or the field boundary, based on GPS coordinates. Cuts dose overlap on wedges and headlands, saving 4–8% of plant-protection products, seed, or fertilizer. Requires ISOBUS TC-SC + compatible implement controller.

Seed treatment is the application of fungicide, insecticide, and micronutrients to seed before sowing to protect against seed-borne infections (smut, Fusarium, Septoria) and early pests (wireworm, wheat thrips, frit fly). Standard technology for winter cereals, corn, sunflower, rapeseed, soybean.

Seeding rate is the mass or number of seeds per hectare to reach target plant density. Calculated from 1000-seed weight, field germination, and target final density. For winter wheat typically 180–250 kg/ha (4.5–5.5 million viable seeds/ha).

Integer representation of the median granule diameter of a fertilizer: SGN = diameter (mm) × 100. Example: SGN 270 = 2.7 mm. A key parameter for spreader calibration (centrifugal and pneumatic) — broadcast uniformity across 24–36 m swath.

A slip controller is an automated system on modern tractors that measures drive-wheel slip (by comparing wheel speed and real GPS ground speed) and regulates implement depth, draft, or diff lock to keep slip in the optimum 8–15% band.

SCU (sulfur-coated urea) is urea covered with a sulfur layer; PCU (polymer-coated urea) uses a polymer shell. Both technologies slow N release over 8–16 weeks, enabling a single-pass application of the full rate without splitting.

The soil's capacity to hold positively charged ions (K⁺, Ca²⁺, Mg²⁺, NH₄⁺, H⁺, Al³⁺) on clay particle and organic matter surfaces. Units: cmol(+)/kg. Chernozems 35–50, sod-podzolic 5–15. Determines K and Ca fertilization efficiency.

A compacted soil layer at 20–35 cm depth formed by repeated ploughing to the same depth with heavy machinery. Bulk density >1.4 g/cm³ cuts yield by 10–25% by blocking roots and water. A leading cause of chernozem degradation in Ukraine.

All organic material in the soil — living organisms, plant residues at various decomposition stages, and stable humus. Optimal chernozem content is 4.5–6.5% in the top 0–30 cm; each additional 1% SOM holds +150–200 m³ water/ha.

A measure of soil acidity or alkalinity from 0 (maximum acidity) to 14 (maximum alkalinity). The optimal pH for most cereals is 6.0–7.0, and for sunflower and maize 6.0–7.5.

The number of somatic cells (mostly leukocytes) per 1 mL of raw milk — a key indicator of udder health and subclinical mastitis. DSTU 3662:2018: Extra ≤400k, Superior ≤500k, First ≤600k/mL. Exceedances trigger processor penalties.

Sowing date is the optimal time window for sowing, when conditions favor germination, early development, and reaching the relevant phenological stage before critical periods (winter — for winter crops, summer droughts — for spring crops). A yield-critical factor alongside variety and nutrition.

Spring N top-dressing is the critical N application window for winter crops (wheat, barley, rapeseed) at resumption of growth (BBCH 20–25). Optimal timing: on frozen-thawed soil, air temperature +3 to +7°C, before active growth begins. In Ukraine — late February to mid-March.

A starter fertilizer is a mineral fertilizer banded next to the seed at planting. Main goal: secure phosphorus access in early growth when the root system is under-developed. Typical starters: DAP, MAP, NPK 10-26-26, liquid 10-34-0.

Ukraine's central executive authority for food, feed, veterinary, plant quarantine, and consumer-rights oversight. Established under Cabinet of Ministers Resolutions 442/2014 and 667/2015. Online: dpss.gov.ua.

The official register of the Ministry of Environmental Protection of Ukraine (mepr.gov.ua) listing all pesticides and agrochemicals permitted for use in Ukraine. Using unregistered products is prohibited by law.

The official register by Ukraine's State Service on Plant Variety Expertise (sops.gov.ua), containing >13,000 varieties and hybrids approved for commercial cultivation. Registration under Law 3116-XII; varieties cannot be sold without it.

Stem elongation is the cereal growth stage when the first node reaches 2–5 cm above the soil (BBCH 30), followed by rapid stem growth. Critical window for N topdressing and T1 fungicide sprays (against Septoria).

Grain storage costs — elevator fees or own-capacity amortization, drying energy, ventilation, insurance, and natural losses. In Ukraine UAH 40–120/t/month at a certified elevator; UAH 30–80/t/month in silobags.

Sulfur in mineral fertilizers comes in two forms: sulfate (SO₄²⁻, immediately plant-available) and elemental (S⁰, requires oxidation by soil Thiobacillus to sulfate over 2–8 weeks). Rapeseed, sunflower, and brassicas need 40–80 kg S/ha — a mandatory nutrient for these crops.

A class of adjuvants that reduces droplet surface tension and boosts leaf contact. Divided into non-ionic (safest — Trend 90, Tween 20, SilWet), cationic, anionic, and amphoteric. Critical for crop-protection products on plants with waxy epidermis.

A swath (or windrow) is a strip of cut crop (grass or grain from the head) formed as a row on the field for subsequent tedding, drying, and pickup (by baler or combine). Swath width depends on header/mower width, crop, and purpose.

UAN is the abbreviation for 'urea-ammonium nitrate', the general name for a family of liquid nitrogen fertilizers (UAN-28, UAN-30, UAN-32). In Ukrainian farm practice, 'UAN' without a number usually means UAN-32 — the most common grade.

UAN is a liquid nitrogen fertilizer — a solution of urea and ammonium nitrate in water. Graded by N content: UAN-28, UAN-30, UAN-32. Contains three N forms: amide (50%), ammonium (25%), nitrate (25%), giving staged plant availability.

Ukraine's state preferential-lending programme for business (including agri) at 5%, 7% or 9% p.a. instead of market rates of 20–30%. Investment ceiling raised to UAH 250 million (January 2026); extended to spring 2027 under CMU Resolution 28/2020.

Ukraine's two leading dairy breeds: Ukrainian Black-and-White (UBWD, 70–80% of the dairy herd, yield 5,500–8,500 kg/lactation) and Ukrainian Red (higher protein and fat). Ternopil pedigree herds 2025: 11,099–13,583 kg/lactation.

ULV (ultra-low volume) spraying applies concentrated product without water dilution at 0.5–5 L/ha (vs 100–300 L/ha in conventional spraying). Typical droplets measure 50–100 µm (Volume Median Diameter). Used on drones and aircraft.

Urea (CO(NH₂)₂) is the nitrogen fertilizer with the highest N content among solid forms: 46% nitrogen in amide form. Typical application rates for main crops: 150–250 kg/ha physical weight or 69–115 kg active N/ha.

A urease inhibitor is a substance that temporarily blocks soil urease enzyme, slowing hydrolysis of urea amide-N to ammonium. Purpose: buy time until rainfall or soil incorporation to minimize N loss via ammonia volatilization.

A standardized tank-loading sequence: Water conditioners → Adjuvants → Liquids (SC/SL) → Emulsifiables (EC) → Solids (WG/WP) — with agitation between each step. Breaking the order causes precipitation, phytotoxicity, and loss of the tank load (UAH 50 000+ per fill).

An adjuvant that lowers working-solution pH to 5.5–6.5 and chelates Ca²⁺, Mg²⁺, Fe³⁺ ions in hard water. Critical for glyphosate, 2,4-D, sulfonylureas: at water pH >7.5, efficacy drops 30–50% through hydrolysis. Examples: Proquest, X-Change, LI-700.

A wet clutch is a clutch running in an oil bath composed of multiple metal-ceramic friction discs. Used in Powershift and CVT transmissions of modern tractors. Service life — 8,000–15,000 engine hours (3–5× longer than a dry-disc MTZ clutch).

Soil moisture at which a plant loses turgor and cannot recover even overnight — water is held by the soil at potential <−1500 kPa. Chernozems 10–14% by volume; sandy soils 3–5%. A key input to AquaCrop and CROPWAT models.

Ukraine has been a WTO member since 16 May 2008. Key agri commitments: Aggregate Measurement of Support (AMS) — USD 3.04 billion/year domestic support ceiling. A Polish grain dispute is ongoing over EU imports in 2024–2025.