Propagules of Purple Nutsedge (Cyperus Rotundus) in Soil PDF Download
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Author: Gamini Siriwardana
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Author: Gamini Siriwardana
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Author:
Publisher: CIAT
ISBN:
Category :
Languages : en
Pages : 60
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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: Dietrich Leihner
Publisher:
ISBN:
Category : Cyperus
Languages : en
Pages : 56
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Author:
Publisher:
ISBN:
Category : Forest nurseries
Languages : en
Pages : 196
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Author: Bhagirath Chauhan
Publisher: Elsevier
ISBN: 0128229357
Category : Science
Languages : en
Pages : 433
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Weeds are the main biological constraint to crop production throughout the year. Uncontrolled weeds could cause 100% yield loss. In Australia, the overall cost of weeds to Australian grain growers was estimated at AU$ 3.3 billion annually. In terms of yield losses, weeds amounted to 2.7 million tonnes of grains at a national level. In the USA, weeds cost US$ 33 billion in lost crop production annually. In India, these costs were estimated to be much higher (US$ 11 billion). These studies from different economies suggest that weeds cause substantial yield and economic loss. Biology and Management of Problematic Weed Species details the biology of key weed species, providing vital information on seed germination and production, as well as factors affecting weed growth. These species include Chenopodium album, Chloris truncata and C. virgate, Conyza bonariensis and C. canadensis, Cyperus rotundus, and many more. This information is crucial for researchers and growers to develop integrated weed management (IWM) strategies. Written by leading experts across the globe, this book is an essential read to plant biologists and ecologists, crop scientists, and students and researchers interested in weed science. - Provides detailed information on the biology of different key weed species - Covers weed seed germination and emergence - Presents the factors affecting weed growth and seed production
Author:
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Category : Forest nurseries
Languages : en
Pages : 196
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1998 contains proceedings for: Southern Forest Nursery Association Conference; Northeastern Forest Nursery Association Conference; and the combined Forest Nursery Association of British Columbia/Western Forest and Conservation Nursery Association meeting.
Author: Centro Internacional de Agricultura Tropical
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
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Author: Ramon-Antonio Cinco-Castro
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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