Maize yield and nitrogen uptake after established no-tillage fields are plowed

W. A. Dick, W. M. Edwards, Richard Charles Stehouwer, D. J. Eckert

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Information is lacking concerning the effect of spring plowing (CT) an established (5 years or more) no-tillage (NT) field on maize (Zea mays L.) grain yield and nitrogen (N) uptake. A 3-year split plot field experiment, with two levels of tillage (CT and NT) and six levels of fertilizer N (0-336 kg N ha-1 as NH4NO3), was conducted on a Coshocton silt loam soil (fine, loamy, mixed, mesic Aquultic Hapludalf) maintained in NT production for 5 previous years. Each year a new area of the established NT field was plowed and treatments were repeated for 2 consecutive years on the same plots. Carryover of N and lack of mineralization of organic N resulted in maize grain yields and N uptake being similar under NT and CT across all N fertilizer rates for the first crop following spring plowing. However, for the second crop after plowing, grain yields and N uptake were higher at the zero or low N fertilizer rates under CT as compared with NT and the reverse was true at the high fertilizer N rates. Addition of a small amount of N (56 or 112 kg ha-1) stimulated organic matter decomposition and/or N immobilization primarily during the second year after plowing. Nitrogen concentrations in the grain and residue were less for the NT compared with the CT treatment although yields of grain and residue were generally greater under NT. The greater efficiency of maize plants under NT in utilizing N taken up from the soil to produce grain was attributed to the greater amount of water in the soil during the growing season.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalSoil and Tillage Research
Volume24
Issue number1
DOIs
StatePublished - Jan 1 1992

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zero tillage
no-tillage
maize
corn
nitrogen
plowing
nitrogen fertilizers
grain yield
fertilizer
fertilizer rates
crop
soil
silt loam soils
crops
loam
immobilization
tillage
mineralization
silt
soil organic matter

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Soil Science
  • Earth-Surface Processes

Cite this

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abstract = "Information is lacking concerning the effect of spring plowing (CT) an established (5 years or more) no-tillage (NT) field on maize (Zea mays L.) grain yield and nitrogen (N) uptake. A 3-year split plot field experiment, with two levels of tillage (CT and NT) and six levels of fertilizer N (0-336 kg N ha-1 as NH4NO3), was conducted on a Coshocton silt loam soil (fine, loamy, mixed, mesic Aquultic Hapludalf) maintained in NT production for 5 previous years. Each year a new area of the established NT field was plowed and treatments were repeated for 2 consecutive years on the same plots. Carryover of N and lack of mineralization of organic N resulted in maize grain yields and N uptake being similar under NT and CT across all N fertilizer rates for the first crop following spring plowing. However, for the second crop after plowing, grain yields and N uptake were higher at the zero or low N fertilizer rates under CT as compared with NT and the reverse was true at the high fertilizer N rates. Addition of a small amount of N (56 or 112 kg ha-1) stimulated organic matter decomposition and/or N immobilization primarily during the second year after plowing. Nitrogen concentrations in the grain and residue were less for the NT compared with the CT treatment although yields of grain and residue were generally greater under NT. The greater efficiency of maize plants under NT in utilizing N taken up from the soil to produce grain was attributed to the greater amount of water in the soil during the growing season.",
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Maize yield and nitrogen uptake after established no-tillage fields are plowed. / Dick, W. A.; Edwards, W. M.; Stehouwer, Richard Charles; Eckert, D. J.

In: Soil and Tillage Research, Vol. 24, No. 1, 01.01.1992, p. 1-10.

Research output: Contribution to journalArticle

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