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Ecologically Based Weed Management
Ecologically Based Weed Management Protect crop yields and strengthen ecosystems with this essential guide Research into weed management is an increasingly critical component of both environmental stewardship and food production. The potential cost of weed propagation can be measured in crop yield reductions, under-nourished populations, stymied economies, and more. The propagation of herbicide-resistant weed populations means that purely chemical weed management is no longer viable; food production can now be secured only with an ecological approach to weed control. Ecologically Based Weed Management details such approaches and their potential to manage weeds across a range of agricultural ...
Recent Advances on Nitrogen Use Efficiency in Crop Plants and Climatic Challenges
Nitrogen (N) is a mineral nutrient that is essential for the normal growth and development of plants that is required in the highest quantity. It is an element of nucleic acids, proteins, and photosynthetic metabolites, therefore crucial for crop growth and metabolic processes. Recently, it was estimated that N fertilizers could meet the 48% demand of the world’s population. However, overuse and misuse of N fertilizers raised environmental concerns associated with N losses by nitrous oxide (N2O) emissions, ammonia (NH3) volatilization, and nitrate (NO3−) leaching. For instance, NH3 is a pollutant in the atmosphere, N2O is a greenhouse gas that has a warming potential 298 times higher tha...
Statement of Disbursements of the House
Covers receipts and expenditures of appropriations and other funds.
Weed Control
In light of public concerns about sustainable food production, the necessity for human and environmental protection, along with the evolution of herbicide resistant weeds, call for a review of current weed control strategies. Sustainable weed control requires an integrated approach based on knowledge of each crop and the weeds that threaten it. This book will be an invaluable source of information for scholars, growers, consultants, researchers and other stakeholders dealing with either arable, row, cash, vegetables, orchards or even grassland-based production systems. The uniqueness of this book comes from the balanced coverage of herbicide effects on humans and environment in relation to best weed control practices of the most important cropping systems worldwide. Furthermore, it amalgamates and discusses the most appropriate, judicious and suitable weed control strategies for a wide range of crops. It reviews the available information and suggests solutions that are not merely feasible but also optimal.
Imagine
A buoyant, breathtaking poem from Juan Felipe Herrera — brilliantly illustrated by Caldecott Honoree Lauren Castillo — speaks to every dreaming heart. Have you ever imagined what you might be when you grow up? When he was very young, Juan Felipe Herrera picked chamomile flowers in windy fields and let tadpoles swim across his hands in a creek. He slept outside and learned to say good-bye to his amiguitos each time his family moved to a new town. He went to school and taught himself to read and write English and filled paper pads with rivers of ink as he walked down the street after school. And when he grew up, he became the United States Poet Laureate and read his poems aloud on the steps of the Library of Congress. If he could do all of that . . . what could you do? With this illustrated poem of endless possibility, Juan Felipe Herrera and Lauren Castillo breathe magic into the hopes and dreams of readers searching for their place in life.
Teaching Teachers
Teacher education in America has changed dramatically in the past thirty years—with major implications for how our kids are taught. As recently as 1990, if a person wanted to become a public school teacher in the United States, he or she needed to attend an accredited university education program. Less than three decades later, the variety of routes into teaching is staggering. In Teaching Teachers, education historians James W. Fraser and Lauren Lefty look at these alternative programs through the lens of the past. Fraser and Lefty explain how, beginning in 1986, an extraordinary range of new teaching programs emerged, most of which moved teacher education out of universities. In some sch...
Teaching the World's Teachers
Examining teacher education in an international context, this book captures the diversity of the world's educators. Many countries confront surprisingly similar challenges in preparing K–12 educators for success, while national contexts also make for surprising differences. In Teaching the World's Teachers, education historians Lauren Lefty and James W. Fraser and their contributors make a convincing case for approaching these shared challenges from a more global and historically minded perspective. Written by education scholars from eleven different countries—Argentina, Brazil, Catalonia-Spain, China, England, Finland, Ghana, Israel, Singapore, South Africa, and the United States—this...
Ad $ Summary
Advertising expenditure data across ten media: consumer magazines, Sunday magazines, newspapers, outdoor, network television, spot television, syndicated television, cable television, network radio, and national spot radio. Lists brands alphabetically and shows total ten media expenditures, media used, parent company and PIB classification for each brand. Also included in this report are industry class totals and rankings of the top 100 companies of the ten media.
