Knowledge Center Catalog

Impacts of conservation agriculture-based farming systems on|optimizing seasonal rainfall partitioning and productivity on vertisols in the Ethiopian drylands (Record no. 30908)

MARC details
000 -LEADER
fixed length control field 04465nab a22003857a 4500
001 - CONTROL NUMBER
control field G99617
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20221213184916.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211b |||p||p||||||| |z||| |
022 0# - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0167-1987
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1016/j.still.2014.11.009
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 0# - LANGUAGE CODE
Language code of text/sound track or separate title En
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 415
Personal name Araya, T.
245 00 - TITLE STATEMENT
Title Impacts of conservation agriculture-based farming systems on|optimizing seasonal rainfall partitioning and productivity on vertisols in the Ethiopian drylands
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 2015
500 ## - GENERAL NOTE
General note Peer-review: Yes - Yes | http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0167-1987
520 ## - SUMMARY, ETC.
Summary, etc. Field water conservation practices are a way to build resilience against drought by increasing productive green water through reducing runoff and evaporation and thereby boosting crop yield. A field study was undertaken on permanently kept rainfed experimental plots established in 2005 on a vertisol in order to evaluate two resource saving cropping systems based on conservation agriculture (CA) that integrate in situ soil and water conservation tillage practices (derdero+ and terwah+) as compared to a conventional system in terms of soil moisture, runoff, water loss (drainage and evapotranspiration together), water productivity and crop yield. The experimental layout was a randomized complete block design with three replications and a plot size of 5 m ? 19 m. The farming systems differed in tillage practice, but all had wheat, teff, barley and grass pea crops grown in rotation. The tillage treatments were (i) derdero+ (DER+) with a furrow and permanent raised bed planting system, plowed only by refreshing the furrow once at planting with no tillage on top of the permanently kept raised beds, 30% standing crop straw retention, and with ∼20% of the crop residue being covered with soil during refreshing the furrow at planting, (ii) terwah+ (TER+) with furrows made at 1.5 m intervals, plowed once at planting, 30% standing crop straw retention and fresh broad beds, and crop residue being partly covered with soil during tillage at planting, and (iii) conventional tillage (CT) with a minimum of three plain tillage operations and complete removal of crop straw. All plowing as well as the maintenance of the furrows of the permanent raised beds was done using a local ard plow called mahresha. Glyphosate was sprayed at 2 l ha−1 to control weeds before crop emergence, starting from 2007 with DER+ and TER+. Runoff was collected at the lower end of each plot in calibrated runoff collectors after each runoff event. Soil?water content was measured using the gravimetric method at 5?6 day intervals. Normalized Difference Vegetation Index (NDVI) was measured in the field at several phenological stages, using a handheld GreenSeeker? Optical Sensor Unit. Soil?water storage (0?80 cm soil depth) during the growing season was always highest with DER+ followed by TER+ and CT, whereas the opposite trend was observed for runoff. On the other hand, deep drainage and evapotranspiration was always highest in the DER+ compared to CT. NDVI records throughout the growing season were significantly highest with DER+ for wheat and grass pea, while the highest values were observed with TER+ when under teff. These values were directly proportional to the above ground crop biomass and yield. The grain and straw yield of wheat in 2009 was increased from 1.6 and 3.7 t ha−1 with CT to 2.6 and 5.2 t ha−1 with DER+, respectively. Our study demonstrates that field water conservation tillage practices that incorporate CA principles are effectively increasing green water in the root zone available for crops and thus, improve crop productivity and yields substantially on vertisols in drylands without other inputs.
536 ## - FUNDING INFORMATION NOTE
Text of note Conservation Agriculture Program
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation Elsevier|CIMMYT Informa 2015
594 ## - STAFFID
StaffID INT2813
595 ## - COLLECTION
Collection CIMMYT Staff Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Crop residue
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Permanent bed
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Soil?water balance
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Vertisols
9 (RLIN) 1304
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Conservation agriculture
9 (RLIN) 2619
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 57
Personal name Cornelis, W.M.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 236
Personal name Nyssen, J.
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 65
Personal name Deckers, J.
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Govaerts, B.
Miscellaneous information Sustainable Intensification Program
-- Integrated Development Program
-- DG's Office
Field link and sequence number INT2813
9 (RLIN) 860
773 0# - HOST ITEM ENTRY
Title Soil and Tillage Research
Related parts v. 148, p. 1-13
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
07/03/2017   07/03/2017 Article Not Lost     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 07/03/2017

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