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  1. 1914-01-01 This publication may be used as a primary source of information for commercial apple growers who want to incorporate changes in their production systems. It is a compilation of information from many sources on practices that address the goals and philosophy of Low-Input/Sustainable Agriculture...
  2. Book 3 explains deficiency symptoms of the following nutrients: Boron and Molybdeunum plus salinity, two or more deficiency symptoms, grow-box gardening, and Index.
  3. 1990-01-01 This book will help to pinpoint and treat specific nutritional deiciencies in your plants. Book 2 explains deficiency symptoms of magnesium, copper, manganese, zinc, sulfur and iron.
  4. The definitive work on vegetable nutrition - nothing else we've seen comes close! Illustrates plant deficiency symptoms using more than 800 color photographs. Includes three volumes of detailed descriptions that teach what each nutrient does for plants and how to recognize the first and...
  5. Access Agriculture Training Video Bacterial Black Spot disease weakens branches and causes fruit to drop. If not treated, it can devastate your entire plantation. Once the disease breaks out in a certain area, it spreads further and further every year. In this video you will learn how to stop it....