Details
| Original language | English |
|---|---|
| Pages (from-to) | 199-206 |
| Number of pages | 8 |
| Journal | Pflanzenbauwissenschaften |
| Volume | 2 |
| Issue number | 4 |
| Publication status | Published - 1999 |
Abstract
A combined field experiment and simulation model study was conducted to quantify the nitrogen dynamics in a faba bean - winter barley sequence with two tillage treatments and two levels of nitrogen fertiliser within the rotation. Correlations between nitrate nitrogen values of the soil (N(min)) values around sowing and harvest of beans increased with soil depth, demonstrating the low nitrate uptake capability of faba bean roots particularly in lower soil layers. Effects of tillage on mineralisation and leaching as calculated with a simple simulation model were small and tended towards slower mineralisation and less leaching with reduced tillage, corresponding with slightly higher nitrogen use efficiencies of barley after winter. Estimated decay constants of soil organic matter increased with years and tended towards higher values in the chisel compared to the moldboard plough treatment. Tillage effects on grain yields were not observed, neither with beans nor with barley. Higher N fertilisation in the rotation increased mineralisation and leaching, and reduced nitrogen use efficiency of barley after winter. It is concluded that faba beans are particularly critical when high amounts of nitrate are present at sowing time due to the other crops in the rotation. The retardation of mineralisation by reduced tillage was too small to substantially reduce nitrogen losses under these conditions.
Keywords
- Hordeum vulgare, Modell, Nitrat, Vicia faba
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
Sustainable Development Goals
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In: Pflanzenbauwissenschaften, Vol. 2, No. 4, 1999, p. 199-206.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of tillage and nitrogen fertilisation within the rotation on the nitrogen dynamics after faba beans
AU - Stutzel, H.
AU - Kage, H.
PY - 1999
Y1 - 1999
N2 - A combined field experiment and simulation model study was conducted to quantify the nitrogen dynamics in a faba bean - winter barley sequence with two tillage treatments and two levels of nitrogen fertiliser within the rotation. Correlations between nitrate nitrogen values of the soil (N(min)) values around sowing and harvest of beans increased with soil depth, demonstrating the low nitrate uptake capability of faba bean roots particularly in lower soil layers. Effects of tillage on mineralisation and leaching as calculated with a simple simulation model were small and tended towards slower mineralisation and less leaching with reduced tillage, corresponding with slightly higher nitrogen use efficiencies of barley after winter. Estimated decay constants of soil organic matter increased with years and tended towards higher values in the chisel compared to the moldboard plough treatment. Tillage effects on grain yields were not observed, neither with beans nor with barley. Higher N fertilisation in the rotation increased mineralisation and leaching, and reduced nitrogen use efficiency of barley after winter. It is concluded that faba beans are particularly critical when high amounts of nitrate are present at sowing time due to the other crops in the rotation. The retardation of mineralisation by reduced tillage was too small to substantially reduce nitrogen losses under these conditions.
AB - A combined field experiment and simulation model study was conducted to quantify the nitrogen dynamics in a faba bean - winter barley sequence with two tillage treatments and two levels of nitrogen fertiliser within the rotation. Correlations between nitrate nitrogen values of the soil (N(min)) values around sowing and harvest of beans increased with soil depth, demonstrating the low nitrate uptake capability of faba bean roots particularly in lower soil layers. Effects of tillage on mineralisation and leaching as calculated with a simple simulation model were small and tended towards slower mineralisation and less leaching with reduced tillage, corresponding with slightly higher nitrogen use efficiencies of barley after winter. Estimated decay constants of soil organic matter increased with years and tended towards higher values in the chisel compared to the moldboard plough treatment. Tillage effects on grain yields were not observed, neither with beans nor with barley. Higher N fertilisation in the rotation increased mineralisation and leaching, and reduced nitrogen use efficiency of barley after winter. It is concluded that faba beans are particularly critical when high amounts of nitrate are present at sowing time due to the other crops in the rotation. The retardation of mineralisation by reduced tillage was too small to substantially reduce nitrogen losses under these conditions.
KW - Hordeum vulgare
KW - Modell
KW - Nitrat
KW - Vicia faba
UR - http://www.scopus.com/inward/record.url?scp=0032866734&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0032866734
VL - 2
SP - 199
EP - 206
JO - Pflanzenbauwissenschaften
JF - Pflanzenbauwissenschaften
SN - 1431-8857
IS - 4
ER -