000			02988nab a2200313 i 4500
003			BR-BrBNA
005			20230928190324.0
008			230807b2020 bl.ar|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aH60 _b0120
072			_aT01
100			_aMushtaq, M.N.
100			_aHashmi, M.I.
100			_aTariq, T.
100			_aMatloob, A.
100			_aHussain, S.
100			_aCheema, Z.A.
245			_aBioeconomic evaluation of allelopathic crop leachates integrated with reduced doses of herbicide for horse purslane management in maize under field conditions
500			_aPublicação on-line; 26 ref.; 2 tables; 4 illus.; Summary (En)
520			_a ABSTRACT Background: Continuous use of commercial herbicides is posing a severe threat to environment and creating herbicide resistant weeds. Allelopathy offers a promising alternative to commercial herbicides for sustainable weed management. The farmers are highly concerned with maximum yield as well as cost of the weed control techniques. Objective: To investigate economic and weed control efficiency of allelopathic crop water leachates mixed with lower rates of herbicide. Methods: Rapeseed (Brassica napus L.), sunflower (Helianthus annuus L.) and sorghum (Sorghum bicolor L.) crop leachates (18 L ha-1 each) tank mixed with lower doses (25, 33 and 50% of recommended dose) of S-metolachlor+atrazine were sprayed as pre-emergence for horse purslane (Trianthema portulacastrum L.) management in maize (Zea mays L.). Label dose (1,080 g a.i. ha-1) of herbicide (S-metolachlor+atrazine) and a weedy check treatment were also maintained. Results: The results showed that rapeseed+sunflower+sorghum allelopathic leachates mixed with half dose (540 g a.i. ha-1) of S-metolachlor+atrazine was effective against horse purslane and increased maize yield (grain) by 45% and 5% as compared with control and label dose of herbicide, respectively. Likewise, economic analysis showed that the same treatment was most economical with 40% and 9% higher net benefits than control and label dose of herbicide, respectively and 2407% marginal rate of return. It also gave an additional benefit of US$ 24.07 for investment of every US$1. Conclusions: By using this technique, herbicides use can be minimized by 50% for sustainable weed management without compromising maize yield and net benefits. Keywords: Allelopathy bioeconomic integrated weed management marginal analysis Trianthema portulacastrum Zea mays.
650			_aZEA MAYS
650			_aMILHO
650			_aALELOPATIA
650			_aERVA DANINHA
773	0		_0886 _91817 _dLondrina-PR : Sociedade Brasileira da Ciência das Plantas Daninhas, 1978 _o2023-031024 _tPlanta Daninha (Brazil) _x0100-8358; 1806-9681 (on-line) _gv. 38 p. 1-7; (2020) _wBR2023000840
856			_uhttps://www.scielo.br/j/pd/a/jMcWGfF3q7K37SS59QS63yQ/?format=pdf&lang=en
942			_cAnalítica
999			_c9753 _d9753