Javaid Muhammad Mansoor, Mahmood Athar, Bhatti Muhammad Izhar Naeem, Waheed Hasnain, Attia Kotb, Aziz Ahsan, Nadeem Muhammad Ather, Khan Naeem, Al-Doss Abdullah A, Fiaz Sajid, Wang Xiukang
Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha, Pakistan.
Department of Agronomy, University of Agriculture, Faisalabad, Pakistan.
Front Plant Sci. 2022 May 2;13:866793. doi: 10.3389/fpls.2022.866793. eCollection 2022.
Weeds cause a serious constraint to wheat productivity. Chemical weed control is considered the most effective method to control weeds; however, a suitable dose and combination of herbicide with adjuvants play a vital role in controlling weeds and producing maximum wheat production. A field study was conducted to investigate the effectiveness of various doses of metribuzin alone or in combination with adjuvants [Bio-power (alkyl ether sulfates and sodium salts) and Ad-500 (fatty alcohol ethoxylate)] on the growth and yield of wheat and its associated weeds. Metribuzin at 175, 140, and 105 g a.i ha, each in combination with adjuvants (Bio-power or Ad-500) at 400 ml ha, were sprayed. A weedy check was also included as a control treatment. The wheat crop was infested with , , , and , and metribuzin with or without adjuvant was sprayed at two- to four-leaf stage of the weeds. The photosynthetic activity, weed population of each weed, and biomass of each weed was significantly affected by all herbicides along with the adjuvant. However, maximum inhibition of tested weeds was observed where metribuzin at 175 g a.i ha + Bio-power at 400 ml ha were sprayed. Metribuzin sprayed at 175 g a.i ha with or without Bio-power recorded a maximum 1,000-grain weight, biological yield, and grain yield. Conclusively, metribuzin sprayed at 175 g a.i ha + Bio-power at 400 at ml ha have the potential to improve wheat yield by inhibiting weed growth, and Bio-power was superior to Ad-500 in improving the efficacy of metribuzin against weeds of wheat crop.
杂草对小麦产量造成严重制约。化学除草被认为是控制杂草最有效的方法；然而，除草剂的合适剂量以及与助剂的组合在控制杂草和实现小麦最高产量方面起着至关重要的作用。开展了一项田间研究，以调查不同剂量的嗪草酮单独使用或与助剂[生物动力（烷基醚硫酸盐和钠盐）和Ad - 500（脂肪醇聚氧乙烯醚）]组合使用对小麦及其伴生杂草的生长和产量的影响。分别喷施175、140和105克有效成分/公顷的嗪草酮，每种剂量均与400毫升/公顷的助剂（生物动力或Ad - 500）混合。还设置了杂草对照作为对照处理。小麦作物受到、、和的侵害，在杂草两叶至四叶期喷施含或不含助剂的嗪草酮。所有除草剂与助剂一起均显著影响光合活性、每种杂草的杂草种群数量和每种杂草的生物量。然而，在喷施175克有效成分/公顷的嗪草酮 + 400毫升/公顷的生物动力时，观察到对受试杂草的抑制作用最大。喷施175克有效成分/公顷的嗪草酮，无论是否添加生物动力，均记录到最大千粒重、生物产量和籽粒产量。总之，喷施175克有效成分/公顷的嗪草酮 + 400毫升/公顷的生物动力有潜力通过抑制杂草生长来提高小麦产量，并且在提高嗪草酮对小麦作物杂草的防效方面，生物动力优于Ad - 500。
