NIAB is upping its interest in organics by publishing an even bigger Organic Vegetable Handbook this year.

The NIAB Organic Handbook 2007 is sponsored by the Horticultural Development Council (HDC), Elsoms Seeds and Bejo Zaden.

The 108-page publication is based on nearly 200 organic trials conducted by NIAB and the Henry Doubleday Research Association (HDRA) over 17 years. It contains information on 446 varieties currently available as organic or untreated seed, encompassing 21 organic vegetable crops.

The handbook covers detailed information on varieties of beetroot, broad beans, broccoli, Brussels sprout, cabbage, carrot, cauliflower, celery, celeriac, kale, leeks, lettuce, onion, parsnip, potato, radish, swede, sweet corn, turnips and winter squash