11. Roadside picnic tables, soil testing and aerial surveying of highways also debuted at this time. 12. Many high-value vegetable crops easily justify soil testing both for chemical content and the soil microbiota. 13. Nevertheless, soil testing had already been carried out. 14. Now the empty yards blossom with tiny yellow flags, to mark the spots of soil testing . 15. The study concluded there had been no soil testing before the tests recently completed for Benson's firm. 16. Huang, an engineer with a soil testing institute in Shanghai, is hiding in an undisclosed location, Xie said. 17. The location was changed to a plot near Jumeirah Lake Towers and Dubai Marina, and soil testing began. 18. The " Manjusri " text advised on site selection, discussed soil properties and gave procedures for soil testing . 19. Over half of all wheat was grown in Itap�a, where most soil testing , tractors, and fertilizers were used. 20. :: : : We do have a centrifuge in my dept at uni ( for soil testing mainly ).