Improvement of a Peat Soil for Rice Cultivation in Thailand
稲作を目的としたタイ国泥炭土壌の改良

Tasnee ATTANANDANA, Benjaporn CHAKRANON, Kazutake KYUMA, Pojanee MONCHAROEN
1999 Japanese Journal of Tropical Agriculture  
The effects of mineral soil dressing, liming and/or trace element application on yield and sterility of rice plants grown on a peat soil in Thailand were investigated. The results of the pot experiments showed that mineral soil dressing gave the highest grain yield and the lowest percentage of unfilled grains. Liming and trace element (Cu+B+Zn) application increased grain yield and decreased rice sterility appreciably. It was also shown that the application of a high dose of copper at a low
more » ... copper at a low level of lime had detrimental effects. At a high level of liming, copper addition resulted in a higher yield. Beneficial effects of mineral soil dressing and liming were also observed under the field conditions. The application of copper to the peat soil did not result in any beneficial effect in terms of grain yield, but in a beneficial effect in terms of decrease of the percentage of unfilled grains when adequate liming was applied.
doi:10.11248/jsta1957.43.91 fatcat:kljd7lfar5bqzceuz4i3625gjy