000			03270naa a22003377a 4500
001			G94573
003			MX-TxCIM
005			20220721162936.0
008			220721s2010 mx ||||| |||| 10| 0 eng d
020			_a978-979-1159-41-8
040			_aMX-TxCIM
041			_aeng
090			_aCIS-6139
100	1		_aAmeta, G.S. _928296
245	1	0	_aEnhancing productivity of maize-based cropping system through integrated weed management under rainfed conditions
260			_aMexico, DF (Mexico) : _bCIMMYT, _c2010.
520			_aDuring the rainy season maize is infested by a variety of weeds, leading to losses ranging from 34% to 67% or sometimes even more. A field experiment with different integrated weed management (IWM) practices was conducted during 2004, 2005 and 2006 with the objective of identifying appropriate IWM for enhancing productivity of maize-based cropping systems under rainfed conditions. Pooled results for the three years showed that IWM markedly reduced weed density and weed dry matter at 35 DAS and 50 days after sowing (DAS). Manual or mechanical weeding at 20 DAS and 35 DAS gave a weed control efficiency (WCE) of 44.24% and 49.91%, respectively, compared to 86.97% under weed-free control. Similarly, PE atrazine @ 0.75 kg ha-1 for a pure stand of maize gave a WCE of 62.61%. Inclusion of soybean as an intercrop in paired maize rows in a 2:2 row ratio (30/90 cm) and treatment with PE Pendimethalin @ 1.0 kg ha-1 followed by one hand weeding at 35 DAS resulted in a significant reduction in weed count, which in turn produced the least weed dry matter (41.46 gm m-2) against 115.87 gm m-2 obtained under nonweeded control at 50 DAS. Further, this system showed significant superiority in terms of WCE (64.20%), giving rise to significant improvement in yield attributes and yield of the crops in the cropping system and producing the highest maize equivalent yield of 3211 kg ha-1 with a B:C ratio of 1.98. This was significantly superior to the other IWM practices. Decreased weed counts and weed dry matter in this IWM system seem to have been the result of relatively less space being available for growth of weeds, leading to weed smothering up to the critical crop stage. Thus, maize intercropped with soybean in a 2:2 row ratio (30/90 cm) with PE Pendimethalin @ 1.0 kg ha-1 followed by one hand weeding at 35 DAS can be the appropriate IWM system for enhancing productivity of maize-based cropping systems under rainfed conditions.
536			_aGlobal Maize Program
546			_aText in English
594			_aINT2823
650		7	_2AGROVOC _91068 _aCropping systems
650		7	_2AGROVOC _91756 _aProductivity
650		7	_2AGROVOC _91308 _aWeed control
650		7	_2AGROVOC _916815 _aIntegrated management
650		7	_2AGROVOC _99381 _aRainfed farming
700	0		_aHargilas _928297
700	1		_9862 _aZaidi, P.H. _gGlobal Maize Program _8INT2823
711	2		_96553 _aAsian Regional Maize Workshop _n(10th : _dOctober 20-23, 2008 : _cMakassar, Indonesia)
773	0		_dMexico : CIMMYT, 2010. _gp. 463-466 _tAsian Regional Maize Workshop, 10. Maize for Asia - Emerging Trends and Technologies; Proceedings of The Asian Regional Maize Workshop; Makassar (Indonesia); 20-23 Oct. 2008 _wG94189 _z978-979-1159-41-8
942			_cBP _2ddc _n0
999			_c7992 _d7992