active crop canopy Articles

  • 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 ...

  • 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 ...

  • Proactive approach to slug control recommended to potato growers

    If left untreated, slugs can cost the potato industry £53 million each year. With predictions of a high pressure slug season ahead, and the potential damage these pests can do to a crop both physically and financially, Robert Boothman, commercial director of Boothmans Agriculture, explains how to keep one step ahead of the pest. “The milder, wet winter and lack of ground frosts ...


    By Certis UK

  • The newest strategy for saving bees is really, really old

    With pollinators in decline around the world, conservationists turn to traditional farmers for answers. In northwestern India, the Himalaya Mountains rise sharply out of pine and cedar forests. The foothills of the Kullu Valley are blanketed with apple trees beginning to bloom. It’s a cool spring morning, and Lihat Ram, a farmer in Nashala village, shows me a ...


    By Ensia

  • California Vineyard Finds Large Role for Compost

    Untitled Document I CAME to Robert Sinskey Vineyards (RSV) with experience in both small and large-scale wine-grape farming, all of it in ...


    By BioCycle Magazine

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