Cover Crop
Click on the cultivar name below for product characteristics COMPARISON CHART
Image Cultivar Type Production period Morphological description Crop strengths Feeding value Production potential Crop uses Soil requirement Establishment
Fumigreen Mediterranean, Herb Annual, Winter & summer

Grows up to 1 – 2 m tall with bright yellow flowers

Leaf blade deeply lobbed; variable, glabrous, rather thin basal leaves; 30 – 60 mm x 2 – 3.5 mm

Seeds brown, yellow; 300 000 – 400 000 seeds/kg

High biomass production

Excellent disease, weed and nematode suppression

Ideal for organic crop rotations and conventional systems

Unknown

Dry matter production: 6 - 10 t/ha/annum Green manure, Biofumigation & condiment made from mustard seeds

Widely adapted to most soil types

Soil pH > 5.5 – 6.5

Plant during August – November and February – May

Seeding rate of 3 – 5 kg/ha


Nemat Mediterranean, Herb Annual, Winter & summer

Grows upright to 0.5 – 0.8 m tall

Leaf blade deeply lobbed; variable, 7.6 – 18 cm long

Seeds 500 000 – 600 000 seeds/kg

Excellent disease, weed and nematode suppression

Improves soil fertility and structure

Plant roots contain highest levels of glucosinolates

 

Unknown

Dry matter production: 6 - 10 t/ha/annum Green manure, biofumigation, used in salads and cooked cuisine

Widely adapted to most well-drained soil types

pH range of 5.5 - 7.5

Plant during September – October and March – May

Seeding rate of 3 – 5 kg/ha


Sunn hemp Subtropical Legume Annual, Summer

Herbaceous, shrubby, branched, erect form, 1 – 4 m tall

Strong taproot; vigorous lateral roots

Leaf blades elliptic to oblong; short-stemmed, 4 – 13 cm x 5 – 30mm; upper surface pubescent

Heart-shaped seed; greyish olive, dark grey, dark brown to black; 4 – 6 mm; 17 000 – 35 000 seeds/kg

• Poor host to nematodes , ideal cover crop
• Very effective nitrogen fixation

Crude protein: 12.5 – 15 % in green material

Digestibility: 65 - 75 %

Dry matter production: 12.5 - 14 t/ha/annum Green manure, cover crop, processed hay & fibre

Prefers well-drained sandy loam to clay soils and tolerates poor sandy soils

pH range of 5 – 8.5

Plant during October – January

Seeding rate of 15 kg/ha dryland, 25 kg/ha irrigated