11.   And Anson worries that the chicken dung he used in the past to replace chemical fertilizer might now carry remnants of feed made from gene-spliced corn.

12.   At his Highgrove estate in Gloucestershire, they grow their vegetables without the use of chemical fertilizers, pesticides or gene splicing.

13.   Chemical fertilizers must be added for those strawberries to grow, and there is nothing to keep the nitrates from leaching into the water table.

14.   Chemical fertilizers are marked with N-P-K numbers, the letters being the chemical symbols for those elements.

15.   Even chemical fertilizer, which does work, presents its own environmental problems by providing too much fertilizer to green things.

16.   He was a vegetarian for nine years but decided that chemical fertilizers and crop sprays were as damaging as the antiobotics in meat.

17.   He then got rich smuggling chemical fertilizer abroad.

18.   He stopped using chemical fertilizer about two years ago, and starting using manure, fish entrails and other natural materials to treat his fields.

19.   Hirshfield said stronger state laws were forcing farmers to adopt various solutions for the problems of runoff from manure, chemical fertilizers and fungicides.