Irrigation strategies to improve the water use efficiency of wheat-maize double cropping systems in North China Plain

Fang, Q; Ma, L; Yu, Q; Ahuja, LR; Malone, RW; Hoogenboom, G

Irrigation strategies to improve the water use efficiency of wheat-maize double cropping systems in North China Plain

Fang, Q Ma, L Yu, Q

Ahuja, LR Malone, RW Hoogenboom, G

Permalink

Publication Type:: Journal Article
Citation:: Agricultural Water Management, 2010, 97 (8), pp. 1165 - 1174
Issue Date:: 2010-08-01

Closed Access

	Filename	Description	Size
	2010003652OK.pdf		946.46 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Fang, Q	en_US
dc.contributor.author	Ma, L	en_US
dc.contributor.author	Yu, Q https://orcid.org/0000-0001-6950-1821	en_US
dc.contributor.author	Ahuja, LR	en_US
dc.contributor.author	Malone, RW	en_US
dc.contributor.author	Hoogenboom, G	en_US
dc.date.issued	2010-08-01	en_US
dc.identifier.citation	Agricultural Water Management, 2010, 97 (8), pp. 1165 - 1174	en_US
dc.identifier.issn	0378-3774	en_US
dc.identifier.uri	http://hdl.handle.net/10453/15025
dc.description.abstract	Water is the most important limiting factor of wheat (Triticum aestivum L.) and maize (Zea mays L.) double cropping systems in the North China Plain (NCP). A two-year experiment with four irrigation levels based on crop growth stages was used to calibrate and validate RZWQM2, a hybrid model that combines the Root Zone Water Quality Model (RZWQM) and DSSAT4.0. The calibrated model was then used to investigate various irrigation strategies for high yield and water use efficiency (WUE) using weather data from 1961 to 1999. The model simulated soil moisture, crop yield, above-ground biomass and WUE in responses to irrigation schedules well, with root mean square errors (RMSEs) of 0.029 cm3 cm-3, 0.59 Mg ha-1, 2.05 Mg ha-1, and 0.19 kg m-3, respectively, for wheat; and 0.027 cm3 cm-3, 0.71 Mg ha-1, 1.51 Mg ha-1 and 0.35 kg m-3, respectively, for maize. WUE increased with the amount of irrigation applied during the dry growing season of 2001-2002, but was less sensitive to irrigation during the wet season of 2002-2003. Long-term simulation using weather data from 1961 to 1999 showed that initial soil water at planting was adequate (at 82% of crop available water) for wheat establishment due to the high rainfall during the previous maize season. Preseason irrigation for wheat commonly practiced by local farmers should be postponed to the most sensitive growth stage (stem extension) for higher yield and WUE in the area. Preseason irrigation for maize is needed in 40% of the years. With limited irrigation available (100, 150, 200, or 250 mm per year), 80% of the water allocated to the critical wheat growth stages and 20% applied at maize planting achieved the highest WUE and the least water drainage overall for the two crops.	en_US
dc.relation.ispartof	Agricultural Water Management	en_US
dc.relation.isbasedon	10.1016/j.agwat.2009.02.012	en_US
dc.subject.classification	Agronomy & Agriculture	en_US
dc.title	Irrigation strategies to improve the water use efficiency of wheat-maize double cropping systems in North China Plain	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.citation.volume	97	en_US
utslib.for	0701 Agriculture, Land and Farm Management	en_US
utslib.for	0799 Other Agricultural and Veterinary Sciences	en_US
utslib.for	0905 Civil Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	8	en_US
pubs.publication-status	Published	en_US
pubs.volume	97	en_US

Abstract:

Water is the most important limiting factor of wheat (Triticum aestivum L.) and maize (Zea mays L.) double cropping systems in the North China Plain (NCP). A two-year experiment with four irrigation levels based on crop growth stages was used to calibrate and validate RZWQM2, a hybrid model that combines the Root Zone Water Quality Model (RZWQM) and DSSAT4.0. The calibrated model was then used to investigate various irrigation strategies for high yield and water use efficiency (WUE) using weather data from 1961 to 1999. The model simulated soil moisture, crop yield, above-ground biomass and WUE in responses to irrigation schedules well, with root mean square errors (RMSEs) of 0.029 cm3 cm-3, 0.59 Mg ha-1, 2.05 Mg ha-1, and 0.19 kg m-3, respectively, for wheat; and 0.027 cm3 cm-3, 0.71 Mg ha-1, 1.51 Mg ha-1 and 0.35 kg m-3, respectively, for maize. WUE increased with the amount of irrigation applied during the dry growing season of 2001-2002, but was less sensitive to irrigation during the wet season of 2002-2003. Long-term simulation using weather data from 1961 to 1999 showed that initial soil water at planting was adequate (at 82% of crop available water) for wheat establishment due to the high rainfall during the previous maize season. Preseason irrigation for wheat commonly practiced by local farmers should be postponed to the most sensitive growth stage (stem extension) for higher yield and WUE in the area. Preseason irrigation for maize is needed in 40% of the years. With limited irrigation available (100, 150, 200, or 250 mm per year), 80% of the water allocated to the critical wheat growth stages and 20% applied at maize planting achieved the highest WUE and the least water drainage overall for the two crops.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/15025