01278naa a2200181 a 450000100080000000500110000800800410001910000180006024501250007826000090020352007480021265000090096065300220096965300240099165300160101570000110103177300540104216482122023-05-04       1999    bl uuuu     u00u1 u    #d1 aCOELHO, E. F.  aRoot distribution and water uptake patterns of corn under surface and subsurface drip irrigation.h[electronic resource]  c1999  aInformation on root distribution and uptake patterns is useful to better understand crop responses to irrigation and fertigation, especially with the limited wetted soil volumes which develop under grip irrigation. Plant water uptake patterns play an important role in the success of drip irrigation system design and management. Here the root systems of corn were characterized by their lrngth density (RLD) and root water uptake (RWU). Comparisons were made between the spatial patterns of corn RWU and RLD under surface and subsurface deip irrigation in a silt loam soil, considering a drip line on a crop row and between crop rows. Water uptake distribution was measured with an array of TDR probes at high spatial and temporal resolution.  acorn  aParametric models  aRoot length density  aRoot uptake1 aOR. D.  tPlant and Soilgv.206, p.123-136, p.123-136, 1999