Search results for: weeding-and-sowing

Weeding and Sowing

Author : Freudenthal H.
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Weeding and Sowing

Author : Hans Freudenthal
File Size : 43.54 MB
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A title that sounds like poetry, and a subtitle that seems to contradict the title! But the subtitle is right, and originally it was just the title. A strange subtitle, isn’t it? Preface to a Science of Mathematical Education. All sciences – in their prenatal stage – have known this kind of literature: only the term used was not ‘Preface’, but, for instance, ‘Prolegomena’, which * means the same though it sounds less provisional. In fact such works were thicker than the present one, by up to ten times. There is much more that can be said about a science before it comes into being than after; with the first results comes modesty. This is the preface to a book that will never be written: not by me, nor by anybody else. Once a science of mathematical education exists, it will get the preface it deserves. Nevertheless this preface – or what for honesty’s sake I have labelled so – must fulfil a function: the function of accelerating the birth of a science of mathematical education, which is seriously impeded by the unfounded view that such already exists. Against this view I have to argue: it rests on a wrong estimation – both over and under estimation at the same time – of what is to be considered as science.

Sowing and weeding

Author : Nicole Fritz
File Size : 79.17 MB
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Growing Vegetables in Straw Bales

Author : Craig LeHoullier
File Size : 70.14 MB
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Straw bale gardening is an inexpensive, low-maintenance way to grow a bounty of food in a small space. All you need is a bale of straw, some fertilizer, and your favorite vegetable seeds! Craig LeHoullier’s step-by-step instructions show you how to do everything from sourcing the straw and setting up your bale to planting, dealing with weeds and pests, and harvesting.

Sowing Beauty

Author : James Hitchmough
File Size : 42.84 MB
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“A hopeful and expansive book for the gardener who sees a field as a canvas.” —Publishers Weekly James Hitchmough is well-regarded in the design world for his exuberant, colorful, and flower-filled meadows. His signature style can be seen in prominent places like London’s Olympic Park and the Botanic Garden at the University of Oxford. Using a distinct technique of sowing meadows from seed, he creates plant communities that mimic the dramatic beauty of natural meadows and offer a succession of blooms over many months—a technique that can be adapted to work in both large-scale public gardens and smaller residential gardens. Sowing Beauty shows you how to recreate Hitchmough’s masterful, romantic style. You'll will learn how to design and sow seed mixes that include a range of plants, both native and exotic, and how to maintain the sown spaces over time. Color photographs show not only the gorgeous finished gardens, but also all the steps along the way.

Planting the Southern Pines

Author : Philip Carman Wakeley
File Size : 77.76 MB
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Of important points. pp. 173.

Proceedings of the Seventh Asian Pacific Weed Science Society Conference

Author : Asian-Pacific Weed Science Society. Conference
File Size : 73.27 MB
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Women and Work in South Asia

Author : Deipica Bagchi
File Size : 65.60 MB
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Women's work is central to the social and economic aspirations of the countries of South Asia. Their contribution to agriculture, industry and services is critical. However, planners and policy makers frequently ignore women's economic roles, drawing simplistic conclusions from inadequate data. Women and Work in South Asia provides a cross-cultural perspective on research on women's work in South Asia. Integrating macro and micro analysis, Asian and Western contributors analyse the inadequacies of official statistics and explore, through case studies, the cultural and socio-economic position of women at work in the region.

Sowing Seeds Or Pulling Weeds

Author : Abbe H. Herzig
File Size : 23.60 MB
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Weed Management

Author : C. M. Singh
File Size : 65.77 MB
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In this book an effort has been made to collect and collate new concepts of weed management into a concise text which will be easy to understand and practice the intricate problems of weeds by the students, farmers and extension workers vis-a-vis the research scientists.

A Review of Dipterocarps

Author : Simmathiri Appanah
File Size : 28.17 MB
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Standardization and Inspection of Fresh Fruits and Vegetables

Author : William Henry White
File Size : 37.35 MB
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This publication gives information on collecting, preserving, handling, mounting, and labeling insect specimens, on subsequent care of collections, and on recognition of the general insect groups or orders. It has been prepared in response to numerous requests from farmers, students, servicemen, and other individuals and groups interested in obtaining first-hand knowledge of insects by collecting them.

The War on Weeds in the Prairie West

Author : Clinton Lorne Evans
File Size : 56.75 MB
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This book Spans four centuries of weed history from sixteenth-century England to mid-twentieth century Canada. Features: Evans looks at topics such as weed biology/ecology, environmental history, herbicide development, noxious weed legislation, and the emergence of weed science as a distinct field of scientific inquiry; Provides an in-depth chronicle of the war on weeds that raged in Western Canada between 1800 and 1950 and the evolution of the relationship between humans and weeds; Provides an environmental history of weeds that covers the events in Upper Canada, the Prairies, and Northern United States; Gives a brief history of herbicides and their widespread acceptance by prairie farmers in the middle of the 1900s; Evans draws on extensive primary sources and considers the delicate connection between human culture and the natural world; The book is particularly timely because of debates on the use of pesticides and herbicide resistance crops, such as canola; Fills a need for a detailed survey of agricultural development and settlement on the Prairies. In this provocative book, Evans suggests that herbicides have simply prolonged the war on weeds, and that by breeding herbicide resistance into crops, agrochemical companies are attempting to secure long-term herbicide and genetically-modified seed sales by forcing farmers to continue to fight a war that can never be won.

Colonial Research Studies

Author : Great Britain. Colonial Office
File Size : 54.99 MB
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Ascochyta Blight and Winter Sowing of Chickpeas

Author : M.C. Saxena
File Size : 56.8 MB
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Proceedings of the Workshop in Ascochyta Blight and Winter Sowing of Chickpeas, held in Aleppo, Syria, May 4-7, 1981

Sowing Modernity

Author : Peter D. McClelland
File Size : 79.64 MB
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Contrary to those who regard the economic transformation of the West as a gradual process spanning centuries, Peter D. McClelland claims the initial transformation of American agriculture was an unmistakable revolution. He asks when a single crucial question was first directed persistently, pervasively, and systematically to farming practices: Is there a better way? McClelland surveys practices from crop rotation to livestock breeding, with a particular focus on the change in implements used to produce small grains. With wit and verve and an abundance of detail, he demonstrates that the first great surge in inventive activity in agronomy in the United States took place following the War of 1812, much of it in a fifteen-year period ending in 1830. Once questioning the status quo became the norm for producers on and off the farm, according to McClelland, the march to modernization was virtually assured. With the aid of more than 270 illustrations, many of them taken from contemporary sources, McClelland describes this stunning transformation in a manner rarely found in the agricultural literature. How primitive farming implements worked, what their defects were, and how they were initially redesigned are explained in a manner intelligible to the novice and yet offering analysis and information of special interest to the expert.

A Handbook for Weed Control in Rice

Author : Kwesi Ampong-Nyarko
File Size : 75.88 MB
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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.

Forest Planting in the Douglas fir Region

Author : Julius Frank Kum̈mel
File Size : 74.87 MB
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Weed Management Handbook

Author : Robert E. L. Naylor
File Size : 77.80 MB
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Weed Management Handbook updates the 8th edition of Weed Control Handbook (1990). The change in the title and contents of the book from previous editions reflects both the current emphasis on producing crops in a sustainable and environmentally-friendly manner, and the new weed management challenges presenting themselves. This landmark publication contains cutting edge chapters, each written by acknowledged experts in their fields and carefully drawn together and edited by Professor Robert Naylor, known and respected world-wide for his knowledge of the area. The sequence of chapters included reflects a progression from the biology of weeds, through the underpinning science and technology relating to weed management techniques including herbicides and their application to crops, leading to principles of weed management techniques. Finally a set of relevant case studies describes the main management options available and addresses the challenges of reduced chemical options in many crops. Weed Management Handbook is a vital tool for all those involved in the crop protection / agrochemical industry, including business managers, horticultural and agricultural scientists, plant physiologists, botanists and those studying and teaching BASIS courses. As an important reference guide for undergraduate and postgraduate students studying horticultural and agricultural sciences, plant physiology, botany and crop protection, copies of the book should be available on the shelves of all research establishments and universities where these subjects are studied and taught. Weed Management Handbook is published for the British Crop Protection Council (BCPC) by Blackwell Publishing.

Indian Farming

Author :
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