crop circle sensor Articles

  • Active sensor reflectance measurements of corn nitrogen status and yield potential

    Active sensor reflectance assessments of corn (Zea mays L.) canopy N status are advocated to direct variable N applications and improve N use efficiency (NUE). Our goals were to determine: (i) growth stage and (ii) sensor vegetation index with greatest sensitivity in assessing N status and grain yield. Variable crop N was generated by supplying N at different amounts and times in three field ...

  • Evaluating multiple indices from a canopy reflectance sensor to estimate corn n requirements

    With the increasing cost of fertilizer N, there is a renewed emphasis on developing new technologies for quantifying in-season N requirements for corn (Zea mays L.). The objectives of this research are (i) to evaluate different vegetative indices derived from an active reflectance sensor in estimating in-season N requirements for corn, and (ii) to consider the influence of the N:Corn price ratio ...

  • AutoTerrain - Worlds best boom stability

    The AutoTerrain works and reacts on both boom movements and twisting forces on the boom. This allows the system to be proactive and react on the cause more than on the symptom. AutoTerrain works with 5 ultrasonic sensors and three gyro sensors. Ultrasonic sensors are located at a given distance on the boom and measure the height of the crops multiple times per second. The gyro sensors measure the ...


    By Hardi International A/S

  • How to grow more food with less water

    Scientists and farmers collaborate on a quest for more efficient irrigation This story was co-published with Civil Eats, a daily news source for critical thought about the American food system. From reading the weather to choosing a ...


    By Ensia

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