由于根系的空间分布影响水分和养分的吸收而且有重要意义。尽管在农业栽培中根系垂直分布很受重视,已做了深入的研究,但应研究二维或三维分布,以了解根系生态。耕作、灌溉和施肥能影响根系分布。根系分布不仅取决于这些环境因素,也取决于遗传因素,一些玉米和谷子品种根系的宽度和深度 Because of the spatial distribution of roots affect the absorption of water and nutrients and is of great significance. Although the vertical distribution of roots in agricultural cultivation has received great attention, further studies have been conducted, but two-dimensional or three-dimensional distribution should be studied to understand the root ecosystem. Tillage, irrigation and fertilization can affect root distribution. Root distribution depends not only on these environmental factors, but also on genetic factors, the width and depth of the roots of some maize and millet varieties