@article{MAKHILLAJ20105120360,
    title = {Nitrogen Variability: A Need for Precision Agriculture},
    journal = {Agricultural Journal},
    volume = {5},
    number = {1},
    pages = {6-11},
    year = {2010},
    issn = {1816-9155},
    doi = {aj.2010.6.11},
    url = {https://makhillpublications.co/view-article.php?issn=1816-9155&doi=aj.2010.6.11},
    author = {B.,D.C.,J. and},
    keywords = {site-specific management,precision farming,remote sensing,precision agriculture,temporal variability,spatial variability,Nitrogen,nitrogen use efficiency,Greenseeker™,Crop Circle™},
    abstract = {Nitrogen (N) variability can have a negative impact on many production practices as well as having a negative influence on the environment. Nitrogen can be highly variable, both spatially and temporally. This is due to the N cycle being such a dynamic system. Producers have to change management practices to account for this variability. One way to manage N variability is the implementation of precision management practices. Scale of N variability is important, when implementing precision management. In some sites, the resolution of N variability is too fine to implement traditional precision agriculture management, such as management zone soil sampling, therefore remote sensing needs to be implemented. Many ground-based remote sensors are able to detect fine resolution differences however, delays between sensing and implementing management practices makes them flawed. Therefore, on-the-go sensors that indirectly measure nutrient status by plant tissue can be utilized to minimize this downtime. Many of these sensors are available, such as the Greenseeker™ and the Crop Circle™. Implementing these practices has been shown to increase the N use efficiency in crops therefore increasing potential yield and decreasing environmental hazards.}
    }