| 000 | 03922nab a22004337a 4500 | ||
|---|---|---|---|
| 001 | G89071 | ||
| 003 | MX-TxCIM | ||
| 005 | 20221213184913.0 | ||
| 008 | 210713s2006 ne |||p|op||| 00| 0 eng d | ||
| 022 | _a1573-5036 (Online) | ||
| 022 | 0 | _a0032-079X | |
| 024 | 8 | _ahttps://doi.org/10.1007/s11104-005-2854-7 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 090 | _aCIS-4699 | ||
| 100 | 1 |
_aGovaerts, B. _gSustainable Intensification Program _gIntegrated Development Program _gDG's Office _8INT2813 _9860 |
|
| 245 | 1 | 0 |
_aConventionally tilled and permanent raised beds with different crop residue management : _beffects on soil C and N dynamics |
| 260 |
_aDordrecht (Netherlands) : _bSpringer, _c2006. |
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| 340 | _aPrinted|Computer File | ||
| 500 | _aPeer review | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-079X | ||
| 520 | _aConservation tillage in its version of permanent bed planting under zero-tillage with crop residue retention has been proposed as an alternative wheat production system for northwest Mexico. However, little is known about the dynamics of C and N in soils under wheat/maize on permanent beds (PB) where straw was burned, removed, partly removed or retained, as opposed to conventionally tilled beds (CTB) where straw was incorporated. We investigated the dynamics of soil C and N and normalized difference vegetative index (NDVI) crop values in zero-tilled PB and CTB after 26 successive maize and wheat crops. Organic C and total N were respectively, 1.15 and 1.17 times greater in PB with straw partly removed and with straw retained on the surface, than in CTB with straw incorporated. Organic C and total N were 1.10 times greater in soils with 300 kg N ha−1 added than in unfertilized soil. Cumulative production of CO2 was lower under CTB with straw incorporated than under PB treatments, and CO2 production increased with increments in inorganic fertilizer. The N-mineralization rate was 1.18 times greater than in unamended soils when 150 kg inorganic N ha−1 was applied, and 1.48 times greater when 300 kg inorganic N ha−1 was added. The N-mineralization rate was significantly (1.66 times) greater in PB where the straw was burned or retained on the surface than in CTB where the straw was incorporated, but significantly (1.25 times) lower than in PB with straw partly removed. The NDVI values reached a maximum 56 days after planting and decreased thereafter. The NDVI for unfertilized soil were similar for CTB with straw incorporated, PB with straw partly removed, and PB with straw retained on the surface, but significantly lower for PB with straw burned and PB with straw removed. In soils to which 150 or 300 kg N ha−1 was added, NDVI was significantly lower for PB with straw burned than for other treatments. Among other things, this suggests the utility of rotating maize or wheat with crops whose residues have lower C–N ratios, thus avoiding immobilization of large amounts of N for extended periods. PB with residue burning, however, is an unsustainable practice leading to low crop performance and soil and environmental degradation. | ||
| 536 | _aConservation Agriculture Program | ||
| 546 | _aText in English | ||
| 591 | _aSpringer | ||
| 592 | _aBE-KULeuven 2007 GOVAERTS D r | ||
| 594 | _aINT2813|CSAY01 | ||
| 700 | 1 |
_aSayre, K.D. _8CSAY01 _94612 _gSustainable Intensification Program |
|
| 700 | 1 |
_aCeballos-Ramirez, J.M. _915859 |
|
| 700 | 1 |
_aLuna Guido, M. _9188 |
|
| 700 | 1 |
_aLimon-Ortega, A. _915808 |
|
| 700 | 1 |
_965 _aDeckers, J. |
|
| 700 | 1 |
_9470 _aDendooven, L. |
|
| 740 | _a89071 | ||
| 740 | _a90010 | ||
| 773 | 0 |
_tPlant and Soil _n633995 _gv. 280, no. 1-2, p. 143-155 _dDordrecht (Netherlands) : Springer, 2006. _wG444682 _x0032-079X |
|
| 856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/105 |
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| 942 |
_cJA _2ddc _n0 |
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| 999 |
_c26189 _d26189 |
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