Production
Oilseed rape (Brassica napus L. or Brassica napus subsp. napus, an autonym for rapeseed, or Brassica napus Oil Rape Group) is a yellow-flowered annual plant in the Brassicaceae family, formerly known as Crucifers. It is widely cultivated for the production of edible oil and agrofuel. Along with sunflower andolive, it is one of the three main sources of edible vegetable oil in Europe.
In Canada, spring rapeseed, whose erucic acid content was lowered by genetic selection, was renamed canola. Since then, European varieties have also had their erucic acid content reduced, so rapeseed and canola are almost identical.
Etymology : rapeseed comes from the Dutch koolzaad (literally " cabbage seed").()
Using oilseed rape as a companion plant
- Sowing companion plants with oilseed rape
- Better tolerance of insects
- Betternitrogen efficiency
- Preserved yield
| Interventions |
Stage/period |
Advice
|
| Choice of plot |
|
Best suited to clay soils
|
| Soil preparation |
|
Re-pressed seedbed, maintain freshness
|
| Sowing |
From 5 August if necessary, aiming for 4 leaves at the end of September |
With legumes, e.g. : field beans 15 p/m², lentils 30 p/m², fenugreek 30 p/m², etc...
|
| Fertilisation |
Before sowing and in spring |
30 units of nitrogen in shallow clay-limestone at sowing, X-30 dose in spring
|
| Weed control |
e Pre-emergence or early post-emergence |
Possible with many herbicides, at moderate doses. Clopyralid in spring if companion plant not destroyed.
|
| Diseases |
Flowering |
Ditto, except where there is high nitrogen pressure in the system.
|
| Harvest |
Mid July |
|
Economic aspects of the crop
Rapeseed alone
Soit une marge brute 648 €/ha (excluding premium)[1]
| Charges opérationnelles en €/ha
|
Produit
|
| Semences : |
47€
|
| Fertilisation : |
230€
|
| Herbicides : |
126€
|
| Fongicides : |
38€
|
| Insecticides : |
12€
|
| Divers : |
15€
|
|
| Rendement : |
31 q/ha
|
| Prix de vente : |
360 €/t
|
|
| Total : 468€
|
Total : 1116 €
|
Rapeseed combined
Soit une marge brute 648 €/ha (excluding premium)[2]
| Charges opérationnelles en €/ha
|
Produit
|
| Semences : |
82€
|
| Fertilisation : |
205€
|
| Herbicides : |
126€
|
| Fongicides : |
38€
|
| Insecticides : |
2€
|
| Divers : |
15€
|
|
| Rendement : |
31 q/ha
|
| Prix de vente : |
360 €/t
|
|
| Total : 468€
|
Total : 1116 €
|
Appendices
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