Effect of Alternative Furrow Irrigation on Soil Phosphorus and Its Forms
Abstract：In order to investigate the effect of alternative furrow irrigation （AFI） on soil phosphorus （P） and its forms, changes of total P, Olsen--P, organic P and inorganic P forms under conventional furrow irrigation （CFI） and AFI treatments were studied. Compared with CFI, AFI decreased the soil total P con- centration at ridge. Olsen--P decreased by 14.7%,23.1% under AFI treatment at ridge and furrow, re- spectively. AFI decreased the moderately labile organic P and Ca8--P at ridge and furrow. There also were significant decreases in O-P,Al-P at ridge under AFI treatment. AFI make a great contribution to accelerated activation and release of accumulative phosphorus in soils.
Keywords：conventional furrow irrigationalternative furrow irrigationphosphorusorganic phosphorusinorganic phosphorus
Publication Date：2011-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)