(19)

(11)

EP 0 696 162 A1

(12)

(43) Date of publication: 14.02.1996 Bulletin 1996/07 (21) Application number: 95909876.0 (22) Date of filing: 28.02.1995

(51) International Patent Classification (IPC):  A01D 34/ 66( . ) (86) International application number: PCT/GB1995/000430 (87) International publication number: WO 1995/023498 (08.09.1995 Gazette 1995/38)

(84) Designated Contracting States: AT BE CH DE ES FR GB GR IE IT LI LU PT (30) Priority: 01.03.1994 GB 19940003917 (71) Applicant: PORT AGRIC LIMITED Crowborough, East Sussex TN6 3PD (GB)	(72) Inventor: PORT, Colin Crowborough, East Sussex TN6 3PD (GB) (74) Representative: Findlay, Alice Rosemary, et al  Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)