Influenza dell’inibitore di nitrificazione 3,4-DMPP sul recupero di 15N-fertilizzante nel riso coltivato in condizioni di differente disponibilità idrica

Translated title of the contribution: [Autom. eng. transl.] Influence of the 3,4-DMPP nitrification inhibitor on the recovery of 15N-fertilizer in rice grown under conditions of different water availability

Marina Gatti, Sandro Silva

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A lysimeter experiment on flooded and nonflooded rice was conducted to evaluate the effect of urea-N in the presence of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) on the fertilizer 15N recovery during different growth stages. At tillering and at panicle differentiation percent recoveries of fertilizer 15N in the nonflooded management were greater in the presence of DMPP, whereas they were significantly lower under flooding conditions. The recovery of fertilizer N was the highest at panicle differentiation under either water regimes. At maturity, the supplying of DMPP ameliorated the partitioning of accumulated total N and of fertilizer 15N applied at panicle differentiation among vegetative and reproductive tissues under nonflooded regime; however, the influence of the nitrification inhibitor was insignificant under flooding
Translated title of the contribution[Autom. eng. transl.] Influence of the 3,4-DMPP nitrification inhibitor on the recovery of 15N-fertilizer in rice grown under conditions of different water availability
Original languageItalian
Title of host publicationAtti XXI Convegno Nazionale Società Italiana di Chimica Agraria
Pages184-193
Number of pages10
Publication statusPublished - 2004
EventConvegno Nazionale Società Italiana di Chimica Agraria - Ancona
Duration: 14 Sep 200417 Sep 2004

Conference

ConferenceConvegno Nazionale Società Italiana di Chimica Agraria
CityAncona
Period14/9/0417/9/04

Keywords

  • 3,4-DMPP
  • inibitore di nitrificazione
  • risaia in asciutta
  • risaia in sommersione

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