Sorghum (Grain)
Sorghum bicolor
A warm-season annual cereal grain valued for its exceptional drought tolerance and heat resistance. Sorghum requires approximately 70% of the water needed by corn, making it an excellent diversification option in drier years or on fields with limited irrigation. Suited to Zones 5–10 with at least 90 frost-free days, it adapts to a wide range of soil types from light loams to heavy clays.
Crop Snowflake Score
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Overview
Grain sorghum is planted in late spring once soil temperatures consistently exceed 60°F. Most commercial plantings use 30-inch row spacing at 4–8 seeds per foot. The crop matures in 90–120 days depending on hybrid selection. Early-maturing hybrids (90–100 days) extend sorghum's range into cooler growing regions. Nutrient uptake is similar to corn at comparable yields. Sorghum's fibrous root system improves soil structure, and it can serve as a rotation crop to break disease cycles in corn-soybean systems. Bird pressure near harvest is a common challenge; bird-resistant (tannin) hybrids are available but may receive price discounts at the elevator.
Growing Season
- Plant
- mid May – mid June
- Harvest
- late September – late October
- Frost-free days
- 90+
- GDD (base 50°F)
- 2,200 – 2,800
Yield
- Typical yield
- 65 bushels/acre
- Productive lifespan
- 1 years
- Years to full prod.
- 1
- Labor
- 8 hrs/acre
Market Fit
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Climate Fit
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Soil Compatibility
Soil Texture
Drainage
Infrastructure Fit
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Equipment Requirements
planting
Field-scale tractor sized to pull a 6-12 row planter and tillage tools. Cost amortized across all row-crop operations on the farm.
Standard 6-12 row corn planter with sorghum plates or singulating meters. Most operations plant sorghum on the same 30-inch rows as corn.
For narrow-row (7.5-15 inch) sorghum where canopy closure is prioritized. Yield benefits are modest and equipment is often shared with wheat operations.
irrigation
Per-quarter-section. Irrigation is uncommon in much of the sorghum belt but used in High Plains production for high-yield management. Optional outside irrigated districts.
spraying
For pre-emergence herbicide and in-season foliar insecticide applications, particularly sugarcane aphid management.
Required if applying fungicide or insecticide after canopy closure on tall hybrids. Most growers contract aerial application instead.
cultivation
Pre-plant tillage and seedbed preparation; no-till operations may not need this. Cost shared across row crops.
harvesting
Standard row-crop combine with a 6-12 row grain header or draper. Shared with corn, wheat, and soybean harvest.
Honeydew from sugarcane aphid causes severe gum-up of combines. Pre-harvest cleaning and aftermarket honeydew shields or wipers are widely used in heavy-aphid years.
post_harvest
Bin set sized to harvest volume. Grain dryer (continuous-flow or batch) required if harvesting at 18-20% moisture. Cost shared with corn storage.
Finance Fit
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Economics Breakdown
| Avg Price/Unit | $8/$/cwt |
| Gross Revenue/Acre | $480 |
| Annual Operating Cost | —/acre |
| Establishment Cost | —/acre |
| Total Input Cost | —/acre |
| Net Return/Acre | -$50 |
| Revenue/Labor Hour | — |
| Crop Insurance | Not available |
Source: USDA NASS Agricultural Prices 03/2026 (Feb 2025 US sorghum grain price received $7.99/cwt); Texas A&M AgriLife 2025 Sorghum Budgets for cost structure (2025)
Risk Fit
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Known Risks
disease
Colletotrichum sublineolum causes leaf, stalk, and grain anthracnose. Most damaging when warm, wet weather coincides with head emergence; can reduce yields 30-50% in susceptible hybrids in conducive years.
Sugarcane aphid (Melanaphis sacchari) feeding and honeydew secretion lead to sooty mold and predispose plants to secondary stalk and head molds. Direct feeding alone can cause >50% yield loss in unmanaged fields.
Fusarium spp. infect lower stalk internodes during late grain fill, especially under post-flowering drought stress. Leads to lodging at or near maturity and significant harvest losses.
Sporisorium reilianum (head smut) replaces grain with masses of black spores; Claviceps africana (ergot) infects flowering heads producing alkaloid-laden honeydew and sclerotia that contaminate grain and limit food/feed use.
pest
Melanaphis sacchari is the dominant insect pest of US sorghum since 2013. Sticky honeydew fouls harvesting equipment in addition to feeding damage; populations can double every 2-3 days under warm conditions.
Stenodiplosis sorghicola larvae feed inside developing florets, preventing grain set. Can cause >50% yield loss when populations are high during a prolonged flowering window.
Helicoverpa zea and Spodoptera frugiperda larvae feed on developing grain in heads, with whorl feeding on younger plants. Most damaging when populations migrate from adjacent corn or pastures.
weather
Sorghum is drought-tolerant relative to corn but yields are highly sensitive to moisture stress during the two weeks preceding and following flowering. Severe stress at flowering can cut yields 50-80%.
Wet weather after physiological maturity can lead to grain sprouting in the head, mold development, and loss of test weight. Late-maturing fields are more exposed because harvest timing pushes into wetter fall conditions.
market
US grain sorghum has historically been heavily dependent on Chinese export demand (60%+ of US exports in peak years). Trade-policy and currency shifts produce significant price volatility year-to-year.
Nutritional Yield
Nutrition data pending.
Research agents will profile Sorghum (Grain) against USDA FoodData Central on the next maintenance pass. Per-acre nutritional yield will appear here once the per-100g panel is recorded.
Ecosystem Services
Water regulation
- Drought-tolerant feed grain alternativehigh
Sorghum uses less water per unit grain than corn and continues to fix carbon under moisture stress that would halt corn photosynthesis. Provides a productive feed grain option in moisture-limited environments without supplemental irrigation.
Quantified:25 percent water savings vs. corn (typical)Applies when: dryland production in semi-arid zonesEvidence: Peer-reviewed·Confidence: high
Climate adaptation
- Heat- and drought-resilient crop optionhigh
C4 photosynthetic pathway, deep root system, and tolerance to high temperatures and limited rainfall make sorghum a strong candidate for climate-change resilience in shifting precipitation regions. Frequently identified as a transition crop for warming corn-belt fringes.
Applies when: regions experiencing more frequent summer heat and drought stressEvidence: Peer-reviewed·Confidence: high
Soil health
- Conservation tillage compatibilitymoderate
Sorghum residue is high in C:N ratio (60-80:1), slow to decompose, and contributes durable surface cover. Strongly suited to no-till and strip-till systems that build soil carbon and reduce erosion.
Quantified:60 C:N ratio of residueApplies when: no-till or strip-till management retainedEvidence: Extension guidance·Confidence: high
Erosion control
- Persistent ground cover residuemoderate
Erect stalks and broad leaf canopy provide both standing residue and high surface coverage that reduces wind and water erosion through winter and into the following season.
Applies when: residue retained on surface after harvestEvidence: Extension guidance·Confidence: high
Pollinator support
- Limited pollinator valuenegligible
Grain sorghum is wind-pollinated; flowers offer minimal nectar resource. Plantings do not function as significant pollinator habitat compared with flowering crops, but field margins planted to forbs can recover this service.
Applies when: in-field flowering only; excludes forb-rich marginsEvidence: Industry consensus·Confidence: high
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Data Sources
Every data point on this page is traceable to its source. Below you'll find the complete provenance trail — which sources were used, when data was last verified, and a full change history.
Primary sources: USDA PLANTS (SOBI2), Kansas State C687 Grain Sorghum Production Handbook, Purdue Sorghum bicolor profile, NC State Extension
Economics data year: 2025 · Region: lake_erie View economics source →
43 tracked changes across 8 data categories