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对70%TM435 WG防治冬小麦田阔叶杂草的效果进行了田间药效试验,结果表明,70%TM435WG速效性好、持效期长,各供试剂量对婆婆纳和猪殃殃的株防效分别达86.6%和76.5%以上,鲜重防效分别达97.93%和88.54%以上,均显著优于20%使它隆EC600 mL/hm2处理.综合成本、安全性及除草效果,建议70%TM435 WG在关中地区冬麦田的适宜用药剂量为30~45 g/hm2或15~30 g 助剂150 g/hm2. 相似文献
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对试验药剂80%吡蚜酮·烯啶虫胺WG和对照药剂25%噻嗪酮WP防治稻飞虱效果进行了田间药效试验,结果表明:80%吡蚜酮·烯啶虫胺WG对水稻褐飞虱和白背飞虱具有很好的防治效果,速效性好、持效期长,且对水稻安全.每667 m2用药量为12 g时,药后3d、7d、14d、21 d防效分别达84.97%、89.19%、91.26%、92.28%;极显著优于对照药剂25%噻嗪酮WP,生产上可大面积推广应用. 相似文献
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用新药剂40%福戈WG与18%杀虫双AC和90%杀虫单SG进行防治水稻二化螟对比试验,结果表明,40%福戈WG对二化螟防治效果显著,用药量120 g/hm2喷施1次,保苗防治效果达100%,优于常用药剂杀虫双和杀虫单。 相似文献
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25%氟菌·唑醚水分散粒剂配方及其对马铃薯晚疫病的田间防效 总被引:2,自引:0,他引:2
为筛选25%氟吡菌胺·吡唑醚菌酯(fluopicolide·pyraclostrobin)水分散粒剂的配方并明确其田间防治马铃薯晚疫病的效果,本文在选定氟吡菌胺与吡唑醚菌酯的最佳混配比例的基础上,通过“干法”加工工艺筛选出25%氟吡菌胺·吡唑醚菌酯水分散粒剂的优化配方,并制备了达到应用标准的试验样品,开展了该样品田间防治马铃薯晚疫病的药效试验.结果表明,以Terwet1004、Tersperse 2700、Morwet D425、尿素、超细煅烧高岭土等为配方助剂,加工出的25%氟吡菌胺·吡唑醚菌酯水分散粒剂样品崩解迅速,悬浮率高于90%,热贮稳定性合格;在喷施剂量(按有效成分)为480、360、288 g/hm2时,对马铃薯晚疫病的田间防效分别为93.96%、92.31%、89.04%.25%氟吡菌胺·吡唑醚菌酯水分散粒剂可有效防治马铃薯晚疫病,具有较好的应用价值. 相似文献
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采用25%阿克泰(Thiamethoxam)可分散性粒剂4000~8000倍液进行移栽后喷雾和采用阿克泰WG2000~4000倍液进行移栽前苗期灌根处理,对番茄烟粉虱的防治效果均明显好于对照药剂,表明阿克泰WG对烟粉虱具有较高活性。试验结果表明,阿克泰WG对烟粉虱的若虫也具有较好的杀伤效果。施用阿克泰WG对番茄植株安全。 相似文献
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High quality requirements are set on durum wheat (Triticum durum) from semolina mills and pasta producers. For the production of semolina and pasta with good cooking quality, high grain protein content and vitreosity is required. The dependency of vitreosity on protein content as well as its stability under the influence of humidity was not well investigated up to now. We (1) compared two methods to determine vitreosity, (2) investigated the relationship between vitreosity and protein content, (3) developed a method to analyze vitreosity under humidity, and (4) examined the relationship between protein content and agronomical as well as quality traits in durum wheat. The results showed that the formation of vitreous kernels greatly depends on the protein content. To evaluate the stability of vitreosity under the influence of humidity a new method was elaborated and employed to assess the durum germplasm under study. This revealed that vitreosity of a durum wheat variety depends on the potential to form vitreous kernels but also to maintain this vitreosity under the influence of humidity. Our results further show that protein content is a central trait in durum wheat that strongly influences important traits like grain yield, vitreosity, and b-value. 相似文献
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Three large deformation rheological tests, the Kieffer dough extensibility system, the D/R dough inflation system and the 2 g mixograph test, were carried out on doughs made from a large number of winter wheat lines and cultivars grown in Poland. These lines and cultivars represented a broad spread in baking performance in order to assess their suitability as predictors of baking volume. The parameters most closely associated with baking volume were strain hardening index, bubble failure strain, and mixograph bandwidth at 10 min. Simple correlations with baking volume indicate that bubble failure strain and strain hardening index give the highest correlations, whilst the use of best subsets regression, which selects the best combination of parameters, gave increased correlations with R2=0.865 for dough inflation parameters, R2=0.842 for Kieffer parameters and R2=0.760 for mixograph parameters. 相似文献
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