Green manure
Returns legume biomass and captured nutrients to the production system.
Red Sunn Hemp
Crotalaria ochroleucaA compact tropical Crotalaria for green manure, soil cover and managed forage in warm production systems.
Technical variety profile
Current Tropical Seeds material describes 8–10 t/ha/year of forage dry matter and 150–200 kg/ha of biological nitrogen fixation under suitable conditions.
Height1.0–1.5 m
Nitrogen150–200 kg/haPublished range
Dry matter8–10 t/ha/year
Crude protein12–15%
Rainfall guide≈800 mm
Drought toleranceMedium
Best fit
Where Red Sunn Hemp belongs
Green manure and soil coverWarm, well-drained tropical systemsManaged forage with approved safety guidanceRotations needing a shorter plant stature
#nitrogen#soil-cover#forage#drought
Why it performs
Three reasons to shortlist it
Warm-season cover
Protects exposed soil and adds functional diversity.
Flexible use
Can support cover-crop and managed forage objectives.
Technical data
Comparable specifications
Height1.0–1.5 mTechnical reference
Nitrogen150–200 kg/haPublished range
Dry matter8–10 t/ha/yearTechnical reference
Crude protein12–15%Technical reference
Rainfall guide≈800 mmTechnical reference
Drought toleranceMediumTechnical reference
Growth habitShrub-like annualTechnical reference
Cold toleranceLowTechnical reference
Fertility needMedium–highTechnical reference
Primary usesGreen manure, cover, forageTechnical reference
Seeding rateConfirm current market guideTechnical reference
Planting depthConfirm current market guideTechnical reference
Primary product documents
Download the technical sheet
Choose the language for a concise guide to key benefits, establishment, management, specifications and limitations.
View guides and supporting researchEstablishment
Build the stand correctly
- 01Plant after frost risk in warm, well-drained soil.
- 02Use the locally approved inoculant and fertility program.
- 03Use the current market guide and seed-lot label for seeding rate and planting depth.
Management
Turn potential into performance
- Terminate before mature seed if used as a cover crop.
- For forage, confirm harvest stage and animal-use guidance.
- Track nitrogen release against the following crop’s demand.
Limitations & safety
Know where it does not fit
- Not suited to cold production windows.
- Seeding rate and depth vary with seed form, planting method and market guidance.
- Use product-specific animal-use and harvest-stage guidance before feeding.
Technical resourcesPeer-reviewed article · 2021 Peer-reviewed article · 2023 View the complete Research Library
Guides and supporting research
IAC 201CO: Crotalaria ochroleuca with high fresh-matter and seed production
Instituto Agronômico de Campinas · Crop Breeding and Applied Biotechnology
Open publicationBiomass, nutrient accumulation and weed suppression by cover-crop mixtures
Embrapa Rice & Beans
Open publicationField fit matters
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