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The effect of tillage and herbicides (Rimsulfuron and Codal Gold) on weed regeneration.

机译:耕作和除草剂(利福磺隆和科达金)对杂草再生的影响。

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摘要

The effect of three tillage methods (no-till, NT; plough, P; and plough and harrow P+H) and the efficacy of rimsulfuron (N-(4,6-dimethoxyl-2-pyrimidinyl) (amino carbonyl)-3-(ethysulfonyl)-2-pyridinesulfonamide) applied at 30 g ai ha-1, codal gold (a formulated mixture of metolachor (2-chloro-N-(2-ethyl-6-methylphenyl)-N-)2-methoxl-1-methyethyl) acetamide and prometryn (N,N'-bis(1-methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine) applied at 1.23 kg ha-1 on weed regeneration in maize (Zea mays) was studied at the University of Benin, Benin City, Faculty of Agriculture farm. The experiment was a split-plot arrangement in a completely randomized block, with tillage methods as the main treatment and weed control methods (rimsulfuron, RIM; codal gold, CG; no weeding NW; HW) as subtreatment. Tillage methods significantly influenced weed biomass (1556, 980.12 and 1024.57 kg ha-1 for NT, P and P+H, respectively, (p<0.05)), but there were no significant differences in weed biomass between P and P+H. Weed control methods also significantly affected weed biomass, 1153.12, 1048.49, 1010.04 and 1535.91 kg ha-1 for CG, HW, RIM and NW, respectively (p<0.05). Tillage and weed control methods significantly influenced maize plant height and dry matter. Tillage methods significantly affected maize grain yield with values of 801.37, 1131.55 and 1272.37 kg ha-1 for NT, P and P+H, respectively. Codal gold significantly depressed grain yield irrespective of the tillage system.
机译:三种耕作方法(免耕,NT;犁,P;犁和耙P + H)的效果以及金磺隆(N-(4,6-二甲氧基-2-嘧啶基)(氨基羰基)-3)的功效-(乙磺酰基)-2-吡啶磺酰胺)在30 g ai ha -1 的情况下使用,硫化金(灭蚁灵(2-氯-N-(2-乙基-6-甲基苯基)- N-)2-甲氧基-1-甲基乙基)乙酰胺和脯氨酰胺(N,N'-双(1-甲基乙基)-6-(甲硫基)-1,3,5-三嗪-2,4-二胺)的用量为1.23在贝宁大学贝宁市农业学院农场研究了kg ha -1 对玉米杂草再生的影响( Zea mays )。实验是在完全随机的块中进行分块布置,以耕作方法为主要处理方法,并以杂草控制方法(rimsulfuron,RIM; codal gold,CG;不除草NW; HW)作为子处理。耕作方式对杂草生物量有显着影响(NT,P和P + H分别为1556、980.12和1024.57 kg ha -1 ,(p <0.05)),但杂草生物量没有显着差异在P和P + H之间。杂草控制方法还显着影响了杂草生物量,CG,HW,RIM和NW分别为1153.12、1048.49、1010.04和1535.91 kg ha -1 (p <0.05)。耕作和杂草控制方法显着影响玉米的株高和干物质。耕作方式显着影响玉米籽粒产量,其中NT,P和P + H分别为801.37、1131.55和1272.37 kg ha -1 。不论耕作制度如何,钴金都会显着降低谷物产量。

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