Changes In Different Forms Of K In Rice Rhizosphere Under K Application

MS Uddin, MJ Abedin Mian, MR Islam, MA Saleque, AZM Moslehuddin
2011 Bangladesh Journal of Agricultural Research  
A pot experiment was conducted with four soils from two locations (BAU farm, Mymensingh and BADC farm, Madhupur, Tangail) in order to monitor the transformation of added K (soil solution K, exchangeable K + and nonexchangeable K) in BRRI dhan-41 rhizosphere at saturation condition. There were six levels of K viz., 0, 30, 60, 90,120 & 150 kg/ha from MoP. Eight kg soil was taken into each pot. The K concentration in soil solution increased with increasing K addition and decreased with increasing
more » ... ncubation period. Soil solution K was drastically reduced at 45 days due to higher crop uptake. The amount of exchangeable K also increased with increment of added K and gradually decreased over time. The non-exchangeable K increased up to 45 days and then decreased up to 105 days.
doi:10.3329/bjar.v36i3.9279 fatcat:bm6ae23gf5akdbfcrxqhy5dldi