磺胺曲酮与氯马酮或苯甲醚配伍对烤烟杂草控制及植物毒性的影响

中国烟草科学 Pub Date : 2001-01-01 DOI:10.3381/0082-4623-45.1.30

L. Fisher, W. Smith

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引用次数: 4

摘要

摘要评价了磺胺曲酮与氯马酮、戊二甲基灵联用对烤烟除杂草和植物毒性的影响。磺胺酮对黄缕草的防效范围为50% ~ 100%，对牵牛花的防效范围为17% ~ 100%，对藜草的防效范围为75% ~ 100%，对蟹草的防效范围为64% ~ 85%。与单独使用磺胺曲酮相比，通过将磺胺曲酮与氯马酮或戊二甲基灵混合使用来改善杂草控制，仅在蟹草上观察到。当移栽时和移栽后土壤湿度较低时，与移栽前混合处理(PPI)相比，预移栽土壤表面处理(PRE-T)的磺胺曲酮减少了杂草控制。在18个地点中，有5个观察到因服用磺胺酮而导致的发育迟缓。单独使用磺胺曲酮的发育迟缓率为0 - 30%，磺胺曲酮加氯马酮的发育迟缓率为1 - 30%，磺胺曲酮加戊二甲基灵的发育迟缓率为4 - 49%。预施t的发育迟缓率不超过13%，而施用PPI的发育迟缓率最高为49%。

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EFFECT OF SULFENTRAZONE APPLICATION AND COMBINATION WITH CLOMAZONE OR PENDIMETHALIN ON WEED CONTROL AND PHYTOTOXICITY IN FLUE-CURED TOBACCO

Abstract The effect of sulfentrazone application and combination with clomazone or pendimethalin on weed control and phytotoxicity in flue-cured tobacco was evaluated. Weed control from sulfentrazone ranged from 50 to 100% for yellow nutsedge, 17 to 100% for morningglory, 75 to 100% for pigweed, and 64 to 85% for crabgrass. Improved weed control through tank mix combinations of sulfentrazone with clomazone or pendimethalin compared to sulfentrazone alone was observed only on crabgrass. When soil moisture was low at and immediately following transplanting, weed control was reduced with a pretranspant, soil-surface treatment (PRE-T) of sulfentrazone compared to a preplant incorporated treatment (PPI). Stunting from sulfentrazone was observed at five of 18 locations. Stunting ranged from 0– 30% with sulfentrazone alone, 1 to 30% with sulfentrazone plus clomazone, and 4 to 49% with sulfentrazone plus pendimethalin. Stunting was no greater than 13% from PRE-T applications compared to a maximum of 49% with PPI ...

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来源期刊

中国烟草科学

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发文量

3722

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