Knowledge Center Catalog

Evaluating maize yield variability and gaps in two agroecologies in northern Ghana using a crop simulation model (Record no. 59388)

MARC details
000 -LEADER
fixed length control field 02459nab a22003737a 4500
001 - CONTROL NUMBER
control field 59388
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20211006085145.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 180404s2017 uk |||p| p||| 00| 0 eng d
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1080/02571862.2017.1354407
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 6844
Personal name MacCarthy, D. S.
245 1# - TITLE STATEMENT
Title Evaluating maize yield variability and gaps in two agroecologies in northern Ghana using a crop simulation model
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. United Kingdom :
Name of publisher, distributor, etc. Taylor and Francis,
Date of publication, distribution, etc. 2017.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
500 ## - GENERAL NOTE
General note Some authors of this article are affiliated to IITA.
520 ## - SUMMARY, ETC.
Summary, etc. The yield gap and variability in maize under smallholder systems in two agroecologies in northern Ghana were evaluated using a decision support system for agrotechnology transfer (DSSAT). The model was used to assess (1) the potential yield of maize (YPOT), (2) water-limited exploitable maize yield (YWEX), (3) nitrogen-limited yield (YNI), (4) farmer practice maize yield (YCFP) and (5) proposed enhanced nutrient use yield (enhanced farmer practice; YEFP). Effect of supplementary irrigation was also assessed on YCFP and YEFP conditions. Yield gaps were determined as the difference between YPOT and YCFP or YEFP on the one hand, and between YWEX and YCFP or YEFP on the other hand. The yield gap based on potential yield ranged from 59% to 75% under CFP and narrowed to between 29% and 59% under EFP. With water-limited exploitable yields, the yield gap ranged from 53% to 65% under CFP, reducing to between 22% and 42% under EFP. The use of supplementary irrigation further reduced the yield gap. Improved fertiliser use and supplementary irrigation have the potential to increase yield and hence reduce the yield gap if effective policies and institutional structures are in place to provide farmers with credit facilities and farm inputs.
526 ## - STUDY PROGRAM INFORMATION NOTE
Program name Maize CRP
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Maize
Miscellaneous information AGROVOC
Source of heading or term
9 (RLIN) 1173
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Cropping systems
Miscellaneous information AGROVOC
Source of heading or term
9 (RLIN) 1068
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1313
Topical term or geographic name as entry element Yields
651 #0 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
9 (RLIN) 4493
Geographic name Ghana
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6846
Personal name Adiku, S. G. K.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6847
Personal name Freduah, B. S.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6761
Personal name Kamara, A. Y.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6849
Personal name Narh, S.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6850
Personal name Abdulai, A. L.
773 0# - HOST ITEM ENTRY
Related parts v. 35, no. 2, p. 137-147
Title South African Journal of Plant and Soil
International Standard Serial Number 2167-034X
856 4# - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://doi.org/10.1080/02571862.2017.1354407
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Koha item type Article
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
04/05/2018   04/05/2018 Article Not Lost Dewey Decimal Classification     Reprints Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 04/05/2018

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org