Correcting soil acidification in continuous corn (zea mays l.): N rate, tillage and time

J. H. Grove, R. L. Blevins

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Use of ammoniacal N in continuous corn production results in greater acidification of the surface soil layer under conservation tillage. Moldboard plowing results in dilution of acid inputs to greater depth. The objective of this work was to observe soil reaction after a lime application made to a continuous corn experiment initiated in 1970. Four fertilizer N rates (0. 84. 168, and 336 kg N ha-1) and two primary tillage systems (no-tillage and moldboard plowing) were used. Lime application was made to half of each plot in 1983. Control of developed acidity was achieved the first year on the plowed soil. This was not the case on the most acid no-till soil, where both corn dry matter production and leaf Mn concentration also indicated persistence of acidity. Surface lime application resulted in soil pH changes limited to the upper 10 cm of no-till soil Shallow.

Original languageEnglish
Pages (from-to)1331-1342
Number of pages12
JournalCommunications in Soil Science and Plant Analysis
Volume19
Issue number7-12
DOIs
StatePublished - May 1988

Keywords

  • Corn nutrition
  • acidity stratification
  • conservation tillage
  • manganese toxicity

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science

Fingerprint

Dive into the research topics of 'Correcting soil acidification in continuous corn (zea mays l.): N rate, tillage and time'. Together they form a unique fingerprint.

Cite this