Different paddy soil phosphorus adsorption characteristics to predict the application of fertilizer
JIA Xue-ping
ZHANG Huan-chao
Abstract：The study selects the typical yellow soil, chaosha soil and red soil for the matrix of paddy soil as the research object, analyses the three kinds of soil organic phosphorus and inorganic phosphorus adsorption characteristics. The amount of the adsorption performance shows: organic phosphorus > inorganic phosphorus, red soil > yellow soil > chaosha soil. In terms of mathematical equations simulation, for inorganic phosphorus adsorption, Langmuir equation fits better; For organic phosphorus adsorption, Temkin equation fits good. In the prediction of three types of paddy soil fertilization, yellow soil, chaosha soil, red soil, respectively, the application of phosphoric fertilizer is 0.93, 0.55, and 1.08 kg in per mu.
Keywords：organic phosphorusinorganic phosphorusadsorptionfertilization prediction
Publication Date：2016-05-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 38-41 )