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Author:
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 460
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Book Description
Author:
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 460
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 412
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36
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Book Description
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251047682
Category : Technology & Engineering
Languages : en
Pages : 116
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Book Description
In the context of improving water productivity, there is a growing interest in deficit irrigation, an irrigation practice whereby water supply is reduced below maximum levels and mild stress is allowed with minimal effects on yield. Under conditions of scarce water supply and drought, deficit irrigation can lead to greater economic gains than maximizing yields per unit of water for a given crop; farmers are more inclined to use water more efficiently, and more water-efficient cash crop selection helps optimize returns. However, this approach requires precise knowledge of crop response to water as drought tolerance varies considerably by species, cultivar and stage of growth. The studies present the latest research concepts and involve various practices for deficit irrigation. Both annual and perennial crops were exposed to different levels of water stress, either during a particular growth phase, throughout the whole growing season or in a combination of growth stages. The overall finding, based on the synthesis of the different contributions, is that deficit or regulated-deficit irrigation can be beneficial where appropriately applied. Substantial savings of water can be achieved with little impact on the quality and quantity of the harvested yield. However, to be successful, an intimate knowledge of crop behavior is required, as crop response to water stress varies considerably.
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 540
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Book Description
Author: Andy Clark
Publisher: DIANE Publishing
ISBN: 1437903797
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1080
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1086
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Book Description
Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
Author: William Shurtleff; Akiko Aoyagi
Publisher: Soyinfo Center
ISBN: 1948436442
Category : Reference
Languages : en
Pages : 986
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Book Description
The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographic index. 80 photographs and illustrations - many color. Free of charge in digital PDF format.
Author: Zed Rengel
Publisher: Academic Press
ISBN: 0323853528
Category : Technology & Engineering
Languages : en
Pages : 817
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Book Description
An understanding of the mineral nutrition of plants is of fundamental importance in both basic and applied plant sciences. The fourth edition of this book retains the aim of the first in presenting the principles of mineral nutrition in the light of current advances. Marschner's Mineral Nutrition of Plants, 4th Edition, is divided into two parts: Nutritional Physiology and Plant–Soil Relationships. In Part I, emphasis is put on uptake and transport of nutrients in plants, root–shoot interactions, role of mineral nutrition in yield formation, stress physiology, water relations, functions of mineral nutrients and contribution of plant nutrition to food nutritional quality, disease tolerance, and global nutritional security of human populations. In view of the increasing interest in plant–soil interactions. Part II focuses on the effects of external and internal factors on root growth, rhizosphere chemistry and biology, soil-borne ion toxicities, and nutrient cycling. Now with color figures throughout, this book continues to be a valuable reference for plant and soil scientists and undergraduate and graduate students in the fields of plant nutrition, nutritional physiology, and soil fertility. - Offers new content on the relationship between climate change, soil fertility and crop nutrition - Keeps overall structure of previous editions - Includes updates in every chapter on new developments, ideas and challenges
