{"title":"Effect of pre-mix pendimethalin + pyrazosulfuron on grain yield and yield attributes of rice (Oryza sativa L.)","authors":"T. Kaur, M. S. Bhullar, Fatehjeet Singh Sekhon","doi":"10.25174/2249-4065/2019/95896","DOIUrl":null,"url":null,"abstract":"The experiment was carried out at Research Farm in Department of Agronomy, Punjab Agricultural University, Ludhiana to work out effective weed management strategy in transplanted rice. Nine treatments viz. pendimethalin + pyrazosulfuronat 675 + 15 g, 900 + 20 g, 1125 + 25 g, pendimethalin at 1500 g, pyrazosulfuronat 15 g, pyrazosulfuronat 20 g, metsulfuron + chlorimuronat 4 g ha -1 , hand weeding and weedy check replicated thrice laid out in randomized complete block design (RCBD). The results revealed that pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 , provided effective weed control (73.8-86.2% weed control efficiency) over other treatments. During 2015, pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 was found profitable with higher rice grain yield (6.65 t ha -1 ) and cost benefit ratio (1:2.25). Pendimethalin + pyrazosulfuronatat 900 + 20 g ha -1 , was found profitable with higher rice grain yield (7.35 t ha -1 ) and cost benefit ratio (1:2.50) and was statistically at par with pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 for weed control during 2016.","PeriodicalId":183623,"journal":{"name":"Wheat and Barley Research","volume":"20 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wheat and Barley Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25174/2249-4065/2019/95896","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The experiment was carried out at Research Farm in Department of Agronomy, Punjab Agricultural University, Ludhiana to work out effective weed management strategy in transplanted rice. Nine treatments viz. pendimethalin + pyrazosulfuronat 675 + 15 g, 900 + 20 g, 1125 + 25 g, pendimethalin at 1500 g, pyrazosulfuronat 15 g, pyrazosulfuronat 20 g, metsulfuron + chlorimuronat 4 g ha -1 , hand weeding and weedy check replicated thrice laid out in randomized complete block design (RCBD). The results revealed that pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 , provided effective weed control (73.8-86.2% weed control efficiency) over other treatments. During 2015, pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 was found profitable with higher rice grain yield (6.65 t ha -1 ) and cost benefit ratio (1:2.25). Pendimethalin + pyrazosulfuronatat 900 + 20 g ha -1 , was found profitable with higher rice grain yield (7.35 t ha -1 ) and cost benefit ratio (1:2.50) and was statistically at par with pendimethalin + pyrazosulfuron at 1125 + 25 g ha -1 for weed control during 2016.
本试验在旁遮普省农业大学农学系研究农场进行，旨在制定插秧水稻有效的杂草管理策略。采用随机完全区组设计(RCBD)进行了手除草和杂草试验，9个处理分别为:二甲甲烷+吡唑磺隆675 + 15g、900 + 20g、1125 + 25g、二甲甲烷1500 g、吡唑磺隆15g、吡唑磺隆20g、甲磺隆+氯脲4g ha -1。结果表明，喷施1125 + 25 g ha -1的二甲甲烷+吡唑隆对杂草的防效为73.8% ~ 86.2%。2015年，使用1125 + 25 g - ha -1的二甲甲烷+吡唑隆可获得较高的水稻产量(6.65 t - ha -1)和成本效益比(1:2.25)。在2016年的杂草防治中，使用900 + 20 g - ha -1的二甲醚+吡唑磺隆具有较高的水稻产量(7.35 t - ha -1)和成本效益比(1:2.50)，在统计上与使用1125 + 25 g - ha -1的二甲醚+吡唑磺隆相当。
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