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Yield Guide · Small Square Bales · All Crop Types

How Many Small Square Bales Per Acre?

Bale count per acre is not fixed — it depends on crop yield, bale weight setting and the density level you dial in on the plunger. This guide gives realistic estimates for alfalfa, grass hay, wheat straw and corn stover, explains how the baler density setting changes the count, and walks through a revenue-per-acre calculation you can apply to local hay prices.

The Yield Formula: How Crop Tonnage Converts to Bale Count

The Basic Calculation

Bale count per acre follows a straightforward formula: total crop yield in kilograms per acre, divided by average bale weight in kilograms, equals the number of bales per acre. Every variable in that formula is a range rather than a fixed number — crop yield varies with field, weather and cutting stage; bale weight varies with crop moisture, species and the density setting on the plunger. The ranges combine to produce the wide bale-count estimates you see from experienced producers (“anywhere from 100 to 250 bales per acre depending on the field”) — and those ranges are accurate because the variables genuinely span that width.

The Formula

(Yield per acre in kg) ÷ (Bale weight in kg) = Bales per acre

例： Alfalfa field at 2.2 tons per acre (2,000kg/acre) at first cut, bale weight 25kg at standard density: 2,000 ÷ 25 = 80 bales. At the same yield and a higher density setting producing 32kg bales: 2,000 ÷ 32 = 62.5 bales. Same field, same crop — but 18 fewer bales per acre at higher density. The revenue impact depends on whether you are paid per bale or per tonne.

Dry Weight vs Field Weight

Crop yield estimates from extension publications are usually given in dry-matter tons per acre. Bale weight is measured in field-fresh weight at baling moisture. To convert: a crop with 1.5 dry-matter tons per acre at 15% baling moisture has a field weight of approximately 1.5 ÷ 0.85 = 1.76 field-weight tons (1,600kg per acre). This is the figure to use in the bale-count formula — not the dry-matter yield. The difference is modest at 14–18% moisture but becomes significant if you are baling at 20% moisture, where field weight is 1.5 ÷ 0.80 = 1.875 tons — 12% more per acre in weight but going into bales that will lose that moisture over time in storage.

Small Square Bale Weight Reference by Crop Type

作物 梱包時の水分量 Low Density Standard Density High Density
アルファルファ干し草 14–17% 16–22kg 22–30kg 28–38kg
Grass hay (mixed) 14–18% 14–18kg 18–26kg 24–32kg
麦わら 10–16% 10–16kg 14–20kg 18–24kg
大麦の茎 10–16% 10–15kg 13–18kg 16–22kg
トウモロコシの茎 14–22% 18–24kg 24–34kg 32–42kg

Alfalfa Hay: Bales Per Acre by Cutting Stage

First and Second Cut — Highest Yield Cuttings

First-cut alfalfa typically produces the highest dry-matter yield of the season — commonly 1.5–2.5 tons per acre in established stands in productive regions, with exceptional stands in irrigated Western production reaching 3–4 tons per acre at first cut. In 460×360mm small square bales at standard density (22–28kg per bale), first-cut alfalfa at 2 tons per acre (1,814kg at baling moisture) produces approximately 65–82 bales per acre.

Second cut is typically lower yield than first cut (1.2–1.8 tons per acre in most regions) but often produces the highest-quality alfalfa of the year in terms of leaf-to-stem ratio and digestibility. At 1.5 tons per acre and 24kg average bale weight, second cut produces approximately 62–70 bales per acre.

Third and Fourth Cut — Lower Yield, Dense Stems

Later cuts (third through fifth in irrigated production) typically yield 0.8–1.3 tons per acre per cutting with stems that are thicker and more mature. In standard compression chamber square balers (9YF-1700/1900/2200), thick-stemmed late-season alfalfa compresses with some void zones between intact stems, which means bale density is slightly lower than first or second cut alfalfa at the same plunger setting. The single-stage shredder on the 9YF-2200S breaks stems before compression, producing higher and more uniform bale density from late-season alfalfa. At 1 ton per acre and 20kg bale weight (reflecting slightly lower compression efficiency), a third-cut field produces approximately 50–55 bales per acre.

Grass and Mixed Hay: Bales Per Acre for Common Species

small square baler operating in a grass hay field showing the baling process for estimating bales per acre from grass hay production — the bale count depends on field yield per acre bale weight setting and the specific grass species being baled at the correct moisture level

Timothy · 1.5–2.5 T/ac

Well-established timothy stands in northern production regions yield 1.5–2.5 tons per acre for the full season (two to three cuts). At 20kg average bale weight: 75–125 bales per acre per season. Timothy bales are lightweight for their size — the stem structure leaves some void zones even at maximum plunger density, which is why bale weight per unit length is lower than alfalfa from the same machine setting.

Orchardgrass · 2–3.5 T/ac

Orchardgrass is a high-yield species across two to four cuts per season in suitable climates. At 2.5 tons per acre total and 22kg average bale weight: 113 bales per acre per season. Individual cut yields of 0.8–1.2 tons give per-cut bale counts of approximately 36–54 bales per acre per cut.

Bermudagrass · 3–6 T/ac

Bermudagrass in the Southern states at full production yields 3–6 tons per acre across five to seven cuts per season under irrigation. At 4 tons per acre and 22kg bale weight: 181 bales per acre per season — one of the highest bale-count species in the small square format.

Native Prairie · 0.5–1.5 T/ac

Native grass prairie hay in the Great Plains typically yields 0.5–1.5 tons per acre in a single cut per season. At 1 ton per acre and 18kg bale weight: 55 bales per acre. Native hay bales are lightweight but command specialty market premiums from horse buyers who value the species diversity.

Wheat and Barley Straw: Bales Per Acre After Combine Harvest

Straw Yield and Recovery Rate

Wheat straw yield in the field after combine harvest depends on the grain-to-straw ratio of the variety grown (typically 1:1 to 1:1.5) and the combine straw management settings (chopped and spread vs standing windrow). For baling, the relevant figure is the harvestable straw remaining in the field after the combine pass. Average harvestable wheat straw yield for baling is 0.8–1.5 tons per acre depending on variety, weather and how much the combine spreads versus windrows the material.

At 1.0 ton per acre harvestable straw at 13% moisture and 16kg average bale weight (straw is low-density material): approximately 62–68 bales per acre. At 1.5 tons per acre and the same bale weight: approximately 94 bales per acre. Straw bale count per acre is sensitive to the combine straw spreading settings — a field where the combine has fully spread and chopped all straw produces zero harvestable straw regardless of the original yield.

Corn Stover: Bales Per Acre and Why Density Settings Matter More

Stover Yield and Recovery Challenges

Corn stover (stalks, leaves, husks and cobs remaining after grain harvest) yields 1.5–3.0 tons per acre of dry matter in standard U.S. corn production, with the harvestable fraction for baling typically representing 50–70% of total stover mass depending on how much is incorporated by the combine and how well the windrow is formed for the baler pickup.

Corn stover compresses differently from hay — whole stalks have hollow internodes that resist uniform compression and leave void channels in the bale cross-section. At standard compression settings on a non-shredder baler, corn stover bales are typically lighter per unit length than hay bales from the same density setting — approximately 18–28kg per bale. With the single shredder on the 9YF-2200S, shredded stover compresses more uniformly and reaches 24–38kg per bale at the same plunger setting. This difference in bale weight changes the bale count per acre significantly.

At 2.0 tons per acre harvestable stover (1,814kg) and 24kg average bale weight (standard compression): approximately 75 bales per acre. With the shredder at 32kg average bale weight: approximately 57 bales per acre. Fewer bales per acre from the shredder model, but each bale weighs more — total tonnage recovered is the same; the revenue difference comes from whether the market pays by count or by weight.

How Baler Density Setting Shifts Bale Count and Revenue Per Acre

The Density-Count Trade-Off

The plunger density setting on a square baler controls how much compression force the plunger applies before the bale reaches the trigger length and the knotters fire. Higher density = more compression per bale cycle = heavier bales = fewer bales per acre from the same crop yield. Lower density = lighter bales = more bales per acre from the same crop yield. The total weight of hay harvested per acre does not change — it is the number of containers (bales) that changes.

When Higher Density Earns More

When you sell hay by weight per bale or by the tonne: fewer, heavier bales at the same per-kg price returns the same revenue per acre. Higher-density bales also stack more efficiently in barn storage (more kg per cubic metre) and are preferred by retail buyers who expect a firm, heavy bale as a quality signal. For transport efficiency, heavier bales mean fewer bales per truckload to move the same tonnage.

When Lower Density Earns More

When you sell hay by the bale at a fixed per-bale price regardless of weight: more, lighter bales return more total revenue per acre. A field that produces 80 bales at high density vs 105 bales at low density earns 31% more revenue per acre at a fixed per-bale price — even though the hay tonnage is identical. For retail markets that charge per bale, this is a meaningful economic incentive to run lighter density settings.

Handling Weight and Market Expectations

The equine and retail hay market has practical weight preferences. A bale under 18kg is sometimes perceived as light or poor quality. A bale above 35kg is difficult to handle for many customers. The 20–28kg range satisfies most retail and equine buyers regardless of whether you price per bale or per weight. Set your density to reach this range rather than optimizing purely for bale count.

small square bales stacked after baling showing the per-acre output that forms the basis for revenue calculations — the total number of bales per acre depends on field yield per acre average bale weight and the plunger density setting used during baling

Revenue Per Acre: A Calculation Guide at Local Hay Prices

9YF-2200 small square baler in a field producing bales — calculating revenue per acre from small square bale production requires knowing the bale count per acre the price per bale in the local market and the cost of the baling operation including tractor fuel and machine depreciation

Example Revenue Calculations

Using local market prices from 2025–2026 for illustrative purposes — verify current rates in your area before production planning:

シナリオ Yield/Acre Bales/Acre Price/Bale Gross/Acre
Premium alfalfa, horse market 2 T/ac 80 $14 $1,120
Orchardgrass, retail hay market 2.5 T/ac 113 $9 $1,017
Wheat straw, bedding and retail 1.2 T/ac 75 $7 $525
Corn stover, cattle feed 1.8 T/ac 75 $5 $375

These are gross revenue estimates only. Production costs (mowing, raking, baling fuel and machine depreciation, twine, handling labour) typically run $60–120 per acre depending on equipment and labour costs in your area. Net margin is gross revenue minus total production costs.

square baler operating in a stover field showing the field conditions that affect bale count per acre including windrow density crop moisture field variability and pickup recovery rate — all these variables combine to shift actual bale count from the estimated average for any given field and season

Variables That Shift Your Real-World Count Away from Averages

The Six Factors That Change Bale Count in Practice

  • Field variability:A 40-acre field will have sections of higher and lower yield. Average estimates mask the range — a 2 T/ac average might include sections at 1 T/ac and 3 T/ac in the same field. Count field sections separately when planning bale storage capacity.
  • Weather before baling:Rain events during curing cause leaf shatter loss in legumes and physical loss of fine material from the windrow. A 2-inch rain on a curing alfalfa windrow can reduce recoverable yield by 15–25% through leaf loss alone.
  • Bale length consistency:The star wheel trip mechanism has some variation cycle-to-cycle. In practice, bales from a well-maintained baler vary by 5–8% in length, meaning bale weight also varies by 5–8% around the average setting. The average is the planning number; individual bales will be lighter or heavier.
  • Pickup recovery rate:No pickup system recovers 100% of the windrow material. Spring-tooth systems typically recover 90–95% of elevated windrow material; hammer-claw systems recover 92–98% including some flattened material. The unrecovered fraction is left in the field as surface residue.
  • Moisture at baling:The same crop baled at 20% moisture produces bales that weigh 6% more per unit length than the same crop baled at 15% moisture (0.80 vs 0.85 dry-matter fraction). Fewer bales per acre at higher moisture — because each bale weighs more — but those bales carry more water weight that is lost in storage.
  • Headland and obstacle loss:Baling around trees, waterways and field obstacles creates short windrow sections that the baler cannot process efficiently. On a small field with many obstacles, 5–10% of the windrow material may be left at headlands or turn areas that are too short for a full bale.

PTO Driveline Resources for Square Baler Operation


agricultural gearbox and PTO shaft components for connecting a small square baler across the 40 to 140 horsepower range of the 9YF series models

Gearbox torque ratings, shaft standards and coupling specifications: 農業用ギアボックスおよびPTOシャフトの仕様

PTO driveshaft length calculations and CV joint angle specifications for baler-tractor connection across the full acreage and power range covered in this guide: PTOドライブシャフトとCVジョイントのサイズガイド.

Frequently Asked Questions — Small Square Bales Per Acre

How many small square bales per acre of alfalfa at first cut?+
First-cut alfalfa yield varies from approximately 1.5 tons per acre in dryland production in average years to 3–4 tons per acre in irrigated Western stands at peak production. In a mid-range scenario of 2 tons per acre at 15% baling moisture, the field-weight yield is approximately 1,882kg per acre. At a standard density producing 25kg bales, that yields approximately 75 bales per acre. At a higher density setting producing 32kg bales, the same field yields approximately 59 bales per acre. Run 10 test bales at the start of each cutting and weigh them to establish your specific per-bale weight before estimating the full field count. First-cut alfalfa is typically the easiest to achieve high density from because the stems are relatively young and flexible.
How many wheat straw bales per acre can I expect after the combine?+
Harvestable wheat straw yield for baling after combine harvest is typically 0.8–1.5 tons per acre, depending on wheat variety, season, combine straw management settings and whether any straw was lost during harvest. At 1 ton per acre at 13% moisture and 16kg average bale weight (straw is light-density material), expect approximately 62–70 bales per acre. At 1.5 tons per acre and the same bale weight, approximately 94 bales per acre. These estimates assume the combine produced a raked windrow rather than spreading and chopping — fully spread straw that must be raked before baling often suffers 10–20% yield loss from incomplete windrow formation in the raking pass. Adjust downward if your combine spreads straw rather than windrowing.
Is it better to get more bales per acre at lower density or fewer heavier bales?+
The answer depends entirely on how your hay is priced and where it goes. If you sell by the bale at a fixed per-bale price: more bales per acre at lower density earns more gross revenue per acre from the same crop tonnage. If you sell by weight (per tonne or per kg): the number of bales does not affect revenue — it only affects how many individual containers you have to handle. If you sell into markets where bale weight signals quality (most retail horse hay and some livestock markets): heavier, firmer bales at higher density are preferred even if they reduce bale count, because buyers associate a dense, heavy bale with high-quality hay. The practical recommendation: set density to produce bales in the 20–28kg range for most retail and equine markets — this range satisfies quality expectations while avoiding the handling difficulty of very heavy bales above 35kg.
How do I calculate whether buying a square baler is worth it for my acreage?+
The ownership break-even calculation compares annual ownership cost against the alternative of custom baling or purchasing hay. Annual ownership cost includes: machine purchase price divided by expected service life (typically 15–25 years for a well-maintained square baler), plus maintenance and parts (estimate 2–4% of purchase price per year), plus twine cost (approximately $2–4 per acre of hay, depending on bale count and twine cost), plus tractor fuel. Compare this total annual cost against custom baling rates in your area (typically $25–60 per acre for small square baling, or $0.40–0.80 per bale) multiplied by your annual acreage. If your acreage is sufficient that ownership cost per acre is below custom rate per acre, ownership is justified on economics alone — before considering availability, scheduling flexibility and the value of producing on your own timeline.
How many small square bales fit in a standard barn or storage building?+
Small square bales in the 460×360mm cross-section format stack at approximately 0.16–0.20 cubic metres per bale including standard stacking gaps. A 40×60 foot barn (2,400 sq ft) with a usable storage height of 12 feet (3.6m) has approximately 8,640 cubic feet (245 cubic metres) of storage volume. At 0.17 cubic metres per bale with typical stacking efficiency, this storage holds approximately 1,440 bales. In practice, standard rectangular barns used for small square hay storage hold 600–1,200 bales per 1,000 square feet of floor area at 10–12 foot stacking height. This is 4–6 times more bales per unit floor area than round bale storage in the same barn, which is one of the key economic arguments for the small square format in operations with existing barn infrastructure.
What is the highest number of small square bales I can realistically get from one acre?+
In exceptional conditions — high-yielding irrigated alfalfa or bermudagrass at peak season, light density setting on the baler producing 16–18kg bales, and full windrow recovery — it is possible to approach 250–300 bales per acre per cutting from a single high-yield cut. More typical high-end yields in 460×360mm small square format are 140–200 bales per acre per cut in first-cut alfalfa at 3+ tons per acre yield with a 15kg light-density setting. These upper estimates are from premium irrigated production in favorable years and represent outliers rather than planning baselines. For realistic planning purposes, use the mid-range estimates by crop type in this guide and adjust upward or downward based on your field history.
How does pickup width affect bale count per acre?+
Pickup width does not change bale count per acre — it changes how many passes per acre the machine needs to cover the field and therefore the time per acre. The 9YF-1700 at 1,700mm pickup and the 9YF-2200 at 2,200mm pickup produce the same number of bales from the same field at the same density setting, because both machines compress the same total crop weight into the same bale dimensions. What differs is efficiency: the 9YF-2200 requires 23% fewer passes per acre than the 9YF-1700 at the same forward speed, reducing fuel consumption and tractor hours per acre. The practical implication: on a 150-acre hay operation, the 9YF-2200 saves approximately 30–40 baling hours per season compared to the 9YF-1700 at the same speed — a meaningful time saving that may justify the larger machine even if bale count per acre is identical.
Does the shredder model produce the same number of bales per acre as the standard model?+
In hard-stalk crops (corn stover, sorghum, cotton), the shredder models (9YF-2200S and 9YFS-2.2) produce fewer bales per acre than the standard 9YF-2200 from the same crop yield, because shredded material compresses more efficiently — producing heavier bales per unit bale length. In a corn stover field where the 9YF-2200 produces 75 bales at 24kg average, the 9YF-2200S with shredder might produce 60 bales at 30kg average from the same field — the total weight harvested is the same (both recover approximately 1.8 tons per acre), but distributed into fewer, heavier bales. In standard hay crops (grass and alfalfa), where material is already flexible and compresses well without shredding, the shredder models produce approximately the same bale count as the standard model from the same crop, because the shredder adds minimal additional compression efficiency to already-uniform materials.

Plan Your Square Baling Operation

From the compact 9YF-1700 for small hobby operations to the fan-equipped 9YFS-2.2 for premium market production — tell us your acreage, crop type and tractor HP to get a model recommendation and pricing.

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Editor:Cxm

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