Long-term effect of fertilization on soil fertility

Research output: Contribution to journalArticle

Abstract

The surplus of the NPK balances of Hungarian agriculture, appearing in the nutrient balance sheet is a consequence of intensive fertilization in the past. Hungary had a positive P-balance between 1960 and 1990 for 30 years, and a positive NK-balance between 1970 and 1990 for 20 years during the 20 century.Studying the long-term effects of superphosphate in a field experiment on calcareous chernozem soil, it was found that the "half life time" of residual P was 5-7 years. The trial, i.e. the P after-effect lasted for 20 years.Liming and fertilization are the main soil fertility improving considerations for acidic sandy soils. These soils are often poor in all major nutrients. Mineral fertilizers, mainly NH4NO3, acidify soil, the pH values sink in comparison to the unfertilized plot. Liming and use of dolomite powder may counterbalance the acidification.

Original languageEnglish
Pages (from-to)109-118
Number of pages10
JournalAgrokemia es Talajtan
Volume63
Issue number1
DOIs
Publication statusPublished - Jun 1 2014

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liming
soil fertility
long term effects
balance sheet
dolomite
nutrient balance
superphosphate
calcareous soils
surpluses
mineral fertilizers
Hungary
acid soils
sandy soils
acidification
half life
soil pH
powders
Chernozem
soil
agriculture

Keywords

  • fertilization
  • liming
  • nutrient balances
  • P residual effect

ASJC Scopus subject areas

  • Soil Science
  • Agronomy and Crop Science

Cite this

Long-term effect of fertilization on soil fertility. / Kádár, I.

In: Agrokemia es Talajtan, Vol. 63, No. 1, 01.06.2014, p. 109-118.

Research output: Contribution to journalArticle

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