Sunn hemp is an annual cover crop that can increase organic matter, fix nitrogen, grows in low fertility sandy soils, and does not harbor nematodes. It has been used extensively as a soil improvement or green manure crop in the tropics because of its ability to produce large amounts of biomass in as little as 60 to 90 days. Because of this, it has the potential to build organic matter levels and sequester carbon in a short period of time.
Black Sunn Hemp
Fast Establishment
Short Growing Season
High in fibre content making it more difficult to manage as a green manure
Seeding rate @ 50kg/ha
Key features
Rapid growth and relatively short growing season requirement
It grows best on well-drained soils with a pH from 5 to 7.5
Used as a cover crop, sunn hemp can improve soil properties, reduce soil erosion, conserve soil water, and recycle nutrients
Suited to the warm summer rainfall areas (or irrigation)
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