Publication Date

1995

Publisher

Department of Agriculture, Western Australia

City

Perth

Abstract

Grain legumes

- Chickpea

- Field pea

- Lentil

- Faba beans

Canola essentials:

Site selection -Paddock selection is critical for a successful canola crop. Avoid paddocks with waterlogging, wind erosion and broadleaf weeds - particularly wild radish, turnip, mustard and doublegees.

Soil type - Canela grows well on most soil types, however it prefers well drained gravel soils, red loams, sandy _loams and deeper duplex soils. Soil pH levels (in CaCl2) of 4.5 to 8.0 are suitable. Soil test paddock for pH, phosphorus, and potassium levels.

Rotation - Grow canola after manipulated pasture, lupins or other grain legumes to maximise returns. First time growers are recommended to grow canola in crop stubble to reduce risk from weeds and insects. Never grow canola in the same paddock with less than four years between canola crops.

Seeding depth - Sow 2 to 3 cm deep into moisture. If forced to sow canola late, sow at 1 to 2 cm for rapid emergence. Be wary of varying soil types within paddocks. Seeding equipment may sink further in sandy soils.

Seeding rate - Seed at a rate of 4 to 6 kg/ha depending on situation. Lower the seeding rate to 3 to 4 kg/ha for zero till seeders and hybrid seed (eg. Hyola 42). Optimum plant population is 50 to 80 plants per square metre by field inspection 1. If below 20 plants seek advice and consider re-seeding.

Seeding technique - Prepare paddock so that soil has a reasonable tilth and a firm level seedbed. A small seeds box on a combine is excellent for sowing canola. On sandy soils use a light roller to maximise seed to soil contact. On soils that are subject to wind erosion, direct drilling with increased seeding rates is best '.Zero till seeders give excellent establishment where a press wheel is used.

Time of sowing - Time of sowing should be as early as the season and good weed control allows with current recommended varieties. Weeds have a greater capacity to reduce yields than sowing time in canola, 2 weeks weed control can make all the difference. Early sowing should be balanced against weed control

Weed control - Control capeweed in the year before cropping canola and during autumn prior to seeding, since capeweed will attract vegetable weevil, a serious insect pest during early developmental stages of a canola crop.

It is essential that knockdown weed control is first class. Use appropriate grass control measures to maximise canola's break crop properties.

Post emergent grass control is not a problem, as a wide range of grass selectives can be used in canola. Implement these control measures before the.field inspection 2.

Refer to the farmnote on Weed control in canola for further information

Number of Pages

13

Keywords

Grain; legume; Field pea; Chickpea; Lentil; Faba beans; Canola; Weeds; Weed control; Lupinus Luteus (Yellow lupin); Autumn (Western Australia)

Disciplines

Agribusiness | Agricultural Economics | Agricultural Science | Agronomy and Crop Sciences | Environmental Indicators and Impact Assessment | Environmental Monitoring | Natural Resources Management and Policy | Plant Biology | Plant Breeding and Genetics | Weed Science

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