この Collection あなたの言語には存在しません, で見る: English (en),
またはGoogle翻訳を使用する:  

  1. Key Resource 1975/01/01 In 1975, Let it Rot! helped start the composting movement and taught gardeners everywhere how to recycle waste to create soil-nourishing compost. Contains advice for starting and maintaining a composting system, building bins, and using compost. Third Edition. Stop bagging leaves, grass, and...
  2. 1993/06/15 Amazon.com Description This book discusses the role of essential nutrients in relation to nearly two dozen crops. Use the book's 307 color photographs to diagnose disorders in the field. The accompanying text explains symptoms in detail, with information provided by 31 crop experts. Covers the...
  3. 2012/01/01 Strong gradients of decreasing soil fertility are found in many regions of the world. Millions of smallholders are now facing this serious crisis which causes them lower crop yields, and many of these families also suffer from food insecurity. With the aim of promoting recovering soil fertility...
  4. Key Resource 2000/01/20 For farmers, ranchers, ag professionals, resource specialists, conservationists, soil scientists, students and educators. The Soil Biology Primer is an introduction to the living component of soil and how it contributes to agricultural productivity, and air and water quality. The Primer includes...
  5. Key Resource 1994/03/15 This volume is the revised English translation of the German title, "Bodenfruchtbarkeit und Standortgerechte Landwirtschaft". It presents a range of practices conducive to sustainable agricultures, and is of particular importance for the development of smallholdings in the tropics. These include...
  6. Key Resource 2001/01/01 Food security in West Africa is challenged by complex issues, including rapid population growth, exploitation of nonrenewable resources, and chronic low soil fertility, but in this text experts from world agricultural institutions share their work to provide solutions. Topics covered include soil...