| Welcome to the IPNI on-line store. Some of the best selling items from our catalog are available for sale here. We have also put together special packets of IPNI materials exclusively for our on-line shoppers. |
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Special packets of IPNI materials only available to web customers. | | Order your copy of the study guide for the International Certified Crop Adviser (CCA) exam. This manual is a comprehensive preparation tool, updated each time the exam is revised. |
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A wonderful assortment of materials for young people. | | Publications from the Institute's Southeast Asia Program are found here. Manuals on rice, oil palm, and soil fertility are listed. |
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With the cooperation of numerous public and private soil testing laboratories, PPI/PPIC periodically summarizes soil test levels for phosphorus, potassium, and pH in North America. The 2005 summary contains levels of magnesium and sulfur as well. Soil tests indicate the relative capacity of soil to provide nutrients to plants. This summary can be viewed as an indicator of the overall nutrient supplying capacity of soil to provide nutrients to plants. This is the ninth summary completed by the Institute, with the first dating back to the 1960s. The summary offers a snapshot view of soil test levels in the U.S. and Canada in 2005, but also provides a comparison to the previous summary which was completed in 2001. | ||
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