Knowledge Center Catalog

Assessing the contribution of nitrogen fertilizer and soil quality to yield gaps : (Record no. 64306)

MARC details
000 -LEADER
fixed length control field 04298nab|a22003737a|4500
001 - CONTROL NUMBER
control field 64306
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20230413223920.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 202111s2021||||ne |||p|op||||00||0|eng|d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0378-4290
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1016/j.fcr.2021.108304
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Lei Qiao
9 (RLIN) 23547
245 10 - TITLE STATEMENT
Title Assessing the contribution of nitrogen fertilizer and soil quality to yield gaps :
Remainder of title a study for irrigated and rainfed maize in China
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Amsterdam (Netherlands) :
Name of publisher, distributor, etc. Elsevier,
Date of publication, distribution, etc. 2021.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Yield gap (Yg) analysis is useful to map the scope for sustainable intensification of agriculture, but explaining and quantifying the underlying causes of yield gaps remains a considerable challenge. The objective of this study was to decompose maize yield gaps under different nitrogen (N) application rates and soil quality conditions across irrigated and rainfed cropping systems in China. A comprehensive database consisting of 5228 on-farm trials located in three major maize production regions of China was used for this purpose. The on-farm trials contained detailed information for four different treatments: fertilizer omission (control), optimal N rate (optimal N), 50% of optimal N rate (low N) and 150% of optimal N rate (high N). These were combined with biophysical and yield potential data from the Global Yield Gap Atlas (http://yieldgap.org). An analytical framework integrating stochastic frontier analysis and principles of production ecology was applied to decompose the overall maize yield gap into components of efficiency (and respective management and soil quality effects, Yg-M and Yg-S), resource (Yg-R), and technology Yg (Yg-T). The potential yield (Yp) of irrigated maize averaged 14.5 Mg/ha in Northeast China (NE) and 11.9 Mg/ha for North China Plain (NCP), and the water-limited potential yield (Yw) of rainfed maize averaged 12.0 Mg/ha in NE and 10.5 Mg/ha in Southwest China (SW), respectively. Maize yield gaps were highly variable across N treatments and cropping systems and ranged between 27–56% of Yp or Yw. Larger absolute yield gaps were observed in irrigated cropping systems in NE (4.8–8.1 Mg/ha) than in NCP (3.8–6.1 Mg/ha) and in rainfed cropping systems in NE (3.6–6.7 Mg/ha) and SW (2.8–5.9 Mg/ha). The components of the yield gap differed in size across cropping systems and N treatments. Yg-T was fairly small and consistent across N treatments ranging between 7.0% and 12.0% of Yp for irrigated maize and only ca. 2.0% of Yw for rainfed maize in NE. Yg-R was strongly associated with the N treatment explaining between 16.0–26.0% of Yp (or Yw) for control and low N treatments and being close to negligible for the optimal and high N treatments. Yg-M due to inefficient crop management accounted for 6.0–14.0% of Yp (or Yw) across cropping systems and N treatments, which is equivalent to 0.7–1.8 Mg/ha. The Yg-S explained the largest proportion of the total yield gap, especially in trials with low and medium soil quality levels, accounting for 11.0–24.0% of Yp or Yw (1.3–3.1 Mg/ha). The Yg-S was linked to partly manageable soil properties, such as low soil organic matter contents and low available P and/or K. This study is one of the first to incorporate the effects of soil quality in yield gap analysis and provides a basis to target management practices that can improve soil quality and N use efficiency while narrowing maize yield gaps in China.
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Zea mays
Source of heading or term AGROVOC
9 (RLIN) 1314
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Yield gap
Source of heading or term AGROVOC
9 (RLIN) 1356
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Stochastic processes
Source of heading or term AGROVOC
9 (RLIN) 19487
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Source of heading or term AGROVOC
9 (RLIN) 3990
Geographic name China
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Silva, J.V.
Field link and sequence number 001712458
Miscellaneous information Sustainable Intensification Program
-- Sustainable Agrifood Systems
9 (RLIN) 9320
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Mingsheng Fan
9 (RLIN) 23548
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Mehmood, I.
9 (RLIN) 23549
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Jinglong Fan
9 (RLIN) 23550
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Rong Li
9 (RLIN) 23551
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name van Ittersum, M.K.
9 (RLIN) 3944
773 0# - HOST ITEM ENTRY
Title Field Crops Research
Related parts v. 273, art. 108304
Place, publisher, and date of publication Amsterdam (Netherlands) : Elsevier, 2021.
International Standard Serial Number 0378-4290
Record control number G444314
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Open Access through DSpace
Uniform Resource Identifier https://hdl.handle.net/10883/21681
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Suppress in OPAC No
Source of classification or shelving scheme Dewey Decimal Classification
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
10/03/2021   10/03/2021 Article Not Lost Dewey Decimal Classification     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 10/03/2021

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