Studies on the Control of Purple Nutsedge (Cyperus Rotundus L.) with Organic Arsenicals PDF Download
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Author: James L. Faubion
Publisher:
ISBN:
Category : Nutgrass
Languages : en
Pages : 112
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Author: James L. Faubion
Publisher:
ISBN:
Category : Nutgrass
Languages : en
Pages : 112
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Author:
Publisher: CIAT
ISBN:
Category :
Languages : en
Pages : 60
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Author: Joseph Myron Sasser
Publisher:
ISBN:
Category : Nutgrass
Languages : en
Pages : 78
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Author: Dietrich Leihner
Publisher:
ISBN:
Category : Cyperus
Languages : en
Pages : 56
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Author: Centro Internacional de Agricultura Tropical
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Author: Richard Lyle Chase
Publisher:
ISBN:
Category : Nutgrass
Languages : en
Pages : 104
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Author: Derek Duane Horrall
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Alternating tillage operations with glyphosate applications resulted in the greatest reduction in tuber number, weight, and viability at mid- and late-season sampling dates. In an herbicide screening study conducted for both purple and yellow nutsedge in the field, imazapic applied at the rate of 71g ha-1 early postemergence (EPOST) resulted in the greatest reduction of tuber numbers and tuber dry weights by July and September. Greenhouse studies indicated that EPOST applications of imazapic and imazethapyr 2 weeks after emergence (WAE) were more effective than those applied to purple and yellow nutsedge 4 and 6 WAE. Foliar-only treatments of purple and yellow nutsedge 2, 4, and 6 WAE provided better shoot control than soil-applied treatments. The greatest control of nutsedge, however, regardless of plant age, was obtained by treating both the foliage and soil. It was determined at the conclusion of a year-long greenhouse study that soil-applied imazapic provided better residual control of purple nutsedge than imazethapyr.
Author: Kenneth E. Frick
Publisher: Forgotten Books
ISBN: 9780260780096
Category :
Languages : en
Pages : 42
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Excerpt from Agents for Biological Control of Purple Nutsedge, Cyperus Rotundus L: The Genus Bactra Stephens (Lepidoptera; Tortricidae; Olethreutinae) As a Major Source, With Emphasis on the Biology and Potential Use of Bactra Verutana Zeller Among the more widespread weeds in the world are two perennial herbs that propagate primarily by means of underground tubers. These plants are in the sedge family, Cyperaceae, and are purple nutsedge, Cyperus rotundus L., and yellow nutsedge, C. Esculentus L. Because these weeds are difficult to control, Holm et al. (1977) rated purple nutsedge as the world's worst weed and yellow nutsedge as the 16th worst. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Richard Lee Duble
Publisher:
ISBN:
Category :
Languages : en
Pages : 238
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Author: Christopher Kheng Hoe Teo
Publisher:
ISBN:
Category : Nutgrass
Languages : en
Pages : 7
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