The study on availability of accumulated phosphorus in paddy soil
1986
Hwang, K.S. | Lee, C.S. | Kwak, H.K. | Park, J.K. | Han, K.H. (Rural Development Administration, Suwon (Korea R.). Agricultural Sciences Inst.)
An attempt was made to investigate the availability and behavior of accumulated phosphorus in paddy soil with phosphorus fertilizer and ameliorates under laboratory experiment. The content of available phosphorus in soil was markedly increased at the 10 kg/10a of phosphorus in comparison with no phosphorus application, and the content was the greatest in the treatment of compost with silicate. The chemical fractions of phosphate in soil was increased in order of Fe-P Al-P Ca-P Occ. Al-Fe-P Red Fe-P, and the correlation between available phosphorus and the different forms of phosphate was higher in order of Al-P Fe-P Occ. Al-Fe-P
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