000			02974nab a22003857a 4500
001			G97122
003			MX-TxCIM
005			20190319201742.0
008			121211b |||p||p||||||| |z||| |
022	0		_a0378-3774
024	8		_ahttps://doi.org/10.1016/j.agwat.2009.02.012
040			_aMX-TxCIM
041	0		_aEn
100	1		_aFang, Q.
245	0	0	_aIrrigation strategies to improve the water use efficiency of wheat-maize double cropping systems in North China Plain
260			_c2010
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0378-3774
520			_aWater is the most important limiting factor of wheat (Triticum aestivum L.) and maize (Zea mays L.) doublecroppingsystems in the NorthChinaPlain (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 irrigationstrategies 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.
546			_aEnglish
591			_aElsevier
593			_aCarelia Juarez
595			_aRPC
650	1	0	_aAgricultural system models
650	1	0	_aDSSAT
650	1	0	_aIrrigation management
650	1	0	_aRZWQM
650	1	0	_91307 _aWater use efficiency _gAGROVOC
700	1		_aAhuja, L.R., _ecoaut. _91564
700	1		_aHoogenboom, G., _ecoaut.
700	1		_aMa, L., _ecoaut.
700	1		_aMalone, R.W., _ecoaut.
700	1		_aYu, Q., _ecoaut.
773	0		_tAgricultural Water Management _gv. 97, no. 8, p. 1165-1174
942			_cJA
999			_c29466 _d29466