| 摘要 |
<p>A method is provided for reducing ammonia volatilization from ammoniated fertilizers and urea-containing fertilizers present on or at the soil surface after 24-48 hours following surface application. The fertilizer is applied in the presence of a water soluble compound that (a) has a saturated solution pH of about 5.0 to about 8.0 and (b) in a hydrolyzing system with the soil and the fertilizer, will form carbonates having a solubility below about 10<-><1><0> grams per liter. The amount of the water soluble compound is that which is sufficient to suppress the formation of hydroxyl ions that otherwise would be produced in the soil according to the reaction YCO3 + H2O <--> Y(OH)2 + CO2 with Y = calcium or magnesium. r</p> |
