| 摘要 |
<p>An improved apparatus for measuring soil nutrient concentration or pH level in soil samples of a known size is used in combination with a soil sampling and transport subassembly (12, 14) mounted on a farm vehicle (10) for on the go measurement of soil nutrient or pH levels in a field. A controller (18) is provided to sequence the operation of the various subassemblies and the system includes provision of a fertilizer applicator (20) automatically having its fertilizer application rate controlled based upon the measured soil nutrient concentrations or pH levels and ground speed of the farm vehicle (10).</p> |
