A comprehensive reference-cum-textbook on fundamentals and principles of weed science. Includes updated information on newer approaches (ecophysiological and biological) in weed management, newer herbicides, bioherbicides, herbicide action mechanisms and transformations in plants, herbicide persistence and behaviour in soil and environment, and interaction of herbicide with other aerochemicals.

“No! We can’t rid of that!” Vnuk, author of the popular “Weeding Tips” column on Booklist Online, is here to show you that yes, you can. A library is an ever-changing organism; when done the right way, weeding helps a library thrive by focusing its resources on those parts of the collection that are the most useful to its users. Her handbook takes the guesswork out of this delicate but necessary process, giving public and school library staff the knowledge and the confidence to effectively weed any collection, of any size. Going through the proverbial stacks shelf by shelf, Vnuk Explains why weeding is important for a healthy library, demonstrating that a vibrant collection leads to robust circulation, which in turn affects library budgetsWalks readers through a library’s shelves by Dewey area, with recommended weeding criteria and call-outs in each area for the different considerations of large collections and smaller collectionsFeatures a chapter addressing reference, media, magazines and newspapers, e-books, and other special materialsShows how a solid collection development plan uses weeding as an ongoing process, making it less stressful and more productiveOffers guidance for determining how to delegate responsibility for weeding, plus pointers for getting experienced staff on boardGives advice for educating the community about the process, how to head off PR disasters, and what to do with weeded materialsIncludes a dozen sample collection development plans, easily adaptable to suit a library’s individual needsFilled with field-tested, no nonsense strategies, this handbook will enable libraries to bloom by maintaining a collection that users actually use.

Filled with field-tested, no nonsense strategies, this handbook will enable libraries to bloom by maintaining a collection that users actually use.

Significance of weeds in rice farming; Rice weeds of world importance; Weed control; Principles of herbicide use; Principal rice herbicides; Weed control in irrigated rice; Weed control in rainfed lowland rice; Weed control in upland rice; Weed control in deepwater and floating rice; Management of some difficult weeds.

Handbook of Integrated Weed Management for Major Field Crops provides a comprehensive guide to the identification, ecology, and management of weeds in key agricultural crops such as rice, wheat, maize, sugarcane, oilseeds, pulses, and more. The book highlights an integrated approach to weed control, combining cultural, mechanical, biological, and chemical methods. Each chapter focuses on specific crops, detailing tailored strategies for effective weed management in diverse agroecological zones. The text also explores weed biology, crop competition, and the role of environmental factors in weed proliferation. With an emphasis on sustainability and economic efficiency, this handbook is a crucial resource for students, researchers, farm managers, and agricultural professionals seeking practical and ecological weed management solutions. Key Features: - Comprehensive coverage of weed identification, biology, and ecology. - Focus on integrated weed management strategies across major field crops. - Detailed weed control approaches for specific crops. - Emphasis on sustainable and economically efficient practices. - Essential resource for students, researchers, and professionals in agriculture.

E-book content, devices, and services have created challenges for libraries as well as opportunities. Because the e-book playing field is constantly changing, any predictions are, at best, tenuous. Librarians must be resilient in order to manage, and not be managed by, e-books and their progenies. With their explosive sales and widespread availability over the past few years, e-books have definitively proven that they are here to stay. In this sequel to her first book of the same title, the author dives even deeper into the world of digital distribution. Contributors from across the e-book world offer their perspectives on what is happening now and what to expect in the coming months and years. Included in this resource are: Guidelines for performing traditional library processes such as cataloging, weeding, archiving, and managing e-book accessibility for patrons with special needs; Explorations of topics such as the e-book digital divide and open-access publishing; Case studies from an array of academic, public, and school libraries, offering firsthand accounts of what works, what doesn't, and why; Discussions of the emerging model of the electronic-only library and the rich possibilities of enhanced e-books.