Characteristics of Fertilizer Nitrogen Leaching under A rtificial Rainfall Conditions
ZHOU You-xin
Abstract：To understand the characteristics of fertilizer nitrogen(N) leaching under artificial rain-fall conditions ,different water-nitrogen treatments were designed to track N .The results showed that the fate of fertilizer N leaching could be divided into three parts :runoff ,seepage and sedi-ment brought by seepage ,the fertilizer N content in the seepages was the highest ,accounting for 36 .55% -42 .86% of the total fertilizer N leaching ,and fertilizer N content in the sediment and the runoffs took up 30 .77% -40 .00% and 23 .45% -26 .59% ,respectively .The NO3--N concen-tration in the runoffs ,seepages ,and sediment was significantly positively related with the N appli-cation ;the fertilizer N content and NO3--N concentration in the seepages were notably higher than those in the runoffs ,suggesting that the fertilizer nitrogen application would threaten the groundwater environment .
Keywords：nitrogen leachingfertilizerwater environmentfarmlandartificial rainfall
Publication Date：2013-10-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 63-65 )