Efficacy of Herbicide Combinations and Seeding Rates on Growth and Yield of Bread Wheat and its Associated Weeds

Jalal Saleh Jalal, Krmanj Yousif, Naby, O.M, GR Min
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Abstract

herbicides have the considerable influence on weed control especially when combined with other herbicides and different seeding rates as an integrated weed management in wheat fields. This study was carried out to evaluate the effects of two herbicides with different concentrations as combinations. First, Atlantis 240 gm. ha -1 + Granstar 35 gm. ha -1 (low dose) second Atlantis 320 gm. ha -1 + Granstar 50 gm. ha -1 (recommended dose) third Atlantis 400gm. ha -1 + Granstar 65 gm. ha -1 (higher dose) comparing with weedy check and weedy free plots as a control treatments, and different seeding rates (75, 100, 125 kg. ha -1 ) on bread wheat at two different locations (Grdarasha and Ainkawa) and were distributed with three replicates using the randomized complete block design (RCBD). The results indicated that wheat grain yield had the highest value was 8.9 ton. ha -1 by low dose of Atlantis. 240 gm. ha -1 + Granstar. 35 gm. ha -1 at Grdarasha where at Ainkawa was 6.29 ton. ha -1 by high dose of Atlantis. 400 gm. ha -1 + Granstar. 65 gm. ha -1 herbicides. In addition, seeding rates had significant impacts on wheat grain yield, which it was achieved highest grain yield at higher seeding rates at both locations. Whereas, herbicide combinations of higher dose of Atlantis. 400 gm. ha -1 + Granstar. 65 gm. ha -1 reduced total weed number and weight significantly to the lowest value at both locations. As well as highest seeding rates of bread wheat had minimum total weed number and weight at both locations. Herbicide combinations with higher seed rate of economic crops together can control weeds more efficiently in wheat fields.
除草剂组合和播种率对面包小麦及其相关杂草生长和产量的影响
除草剂对杂草的控制有很大的影响,尤其是与其他除草剂和不同播种率的除草剂结合作为麦田杂草的综合治理。本研究旨在评估两种不同浓度除草剂的组合效果。首先,亚特兰蒂斯240克·公顷-1+格兰斯达35克·公顷-1(低剂量)第二,亚特兰蒂斯320克·公顷+1+格兰斯达尔50克·公顷-1(推荐剂量)第三,亚特兰蒂斯400克。ha-1+Granstar 65 gm.ha-1(更高剂量),与杂草对照和无杂草对照相比,以及在两个不同地点(Grdarasha和Ainkawa)对面包小麦的不同播种率(75、100、125 kg.ha-),并使用随机完全区组设计(RCBD)进行三次重复分配。结果表明,小麦产量最高,达8.9吨。ha-1由亚特兰蒂斯的低剂量。240克公顷-1+格兰斯达。Grdarasha的35克公顷-1,Ainkawa为6.29吨。ha-1通过亚特兰蒂斯的高剂量。400克公顷-1+格兰斯达。65克ha-1除草剂。此外,播种率对小麦产量有显著影响,两个地点的播种率越高,小麦产量就越高。而阿特兰蒂斯的除草剂组合剂量更高。400克公顷-1+格兰斯达。65gm.ha-1显著降低了两个地点的杂草总数和重量,达到最低值。除了播种率最高外,面包小麦在两个地点的杂草总数和重量都最低。经济作物种子率较高的除草剂组合可以更有效地控制麦田杂草。
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