Lucerne
(Pre Inoculated)
Nitrogen Fixer
Thrive for 3-4 Years
Inoculated with a culture of live Rhizobia Meliloti bacteria
Characteristics
- Lucerne is a high protein with high digestibility legume which is usually grown for cutting
- Lucerne’s high protein makes it extremely useful as a complementary forage to grass and maize
- It has a deep tap root system and is able to withstand severe drought
- It is a productive plant with high nutritional value
- Lucerne can be grown successfully on a wide range of fertile free-draining sites and soil types
- Lucerne will not thrive in waterlogged soils, so the general advice is to avoid heavier land and cold wet soils
- To minimise the threat of pests and diseases, a period of five years should be allowed in the rotation between Lucerne crops
- Lucerne is a legume that leaves significant residual Nitrogen for following crops
- Lucerne forage increases animal fibre intake
- Don’t over graze in the winter or drive on the crop in wet conditions to avoid damage to the crown
- Will remain productive and thrive for 3 – 4 years
Sowing and Establishment
Lucerne should be sown when soils are warm into a fine and firm seedbed to a depth of 0.5-1cm. Spring sowing (from late April) tends to be more common with Lucerne as this ensures strong plants going into the first winter. Lucerne can be sown successfully up to the middle of August.
Cutting, Grazing & Feeding
Ensiling best practice to bale or clamp
- Aim for a target dry matter of 30-40% for clamp silage and 50% for bales
- Chop to 3-4cm and roll well in the clamp
- For bales, wilt to 40-60% dry matter and ensure at least four layers of plastic to minimise the risk of stems piercing the wrap
- Always use an additive as Lucerne is low in sugars and difficult to ferment, Lallemand
Crop Management
Key points in Lucerne persistency:
- Allow plants to flower once a year; this ensures storage of nutrients in the tap root to improve Winter hardiness and boost Spring growth
- Cut when 10% of flowers are showing (early bud stage)
- Aim for an optimum cutting height of 7cm to promote regrowth
Variety Choice
Our UK selected varieties are Flemish dormant types with medium thick stems. Good early Spring growth and a very vigorous growth in Summer and Autumn. The dormancy rate is 4-5. As well as high resistance ratings for stem nematode and Verticillium wilt. UK proven varieties available: Ezzelina, Artemis and New RGT Etincelle.
Annual P and K requirements for 3-cut system (kg/ha)
Some of the P and K can be supplied in manures / slurry. Eg 40 m3/ha dairy cow slurry may supply up to 48kg/ha P and 140 kg/ha K.
Each type of grass has different growth and quality characteristics. When reseeding it is important to select the most appropriate grasses and clovers.