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Agriculturial Reference Material
| Agriculturial Reference Material: | |
| Acid Base pKa Values | pKa table ordered by the pK value. |
| Atomic Weight Table | |
| Basic Metric Conversion Chart | Covers common agricultural units. |
| Elements in Agriculture | Detailed description of elements from the agricultural perspective |
| Fertilizer Composition Table | Average compostion of fertilizer materials, includes acidity and basicity equivalents |
| Fertilizer Conversions | Conversion table between various fertilisers and the principal nutrient. |
| Inorganic Sources of Micronutrients | Composition and properites of inorganic micronutrient materials |
| Unit Conversion Depository | Contains a very large number of conversions. |
| Crop Library | |
| Writings on the history, characteristics, and care of common crops. This list is being developed. | |
| Strawberries | |
| Potatoes (coming Soon) | |
| Glossaries: | |
| Microbiological Glossary | Defines common microbiological terms. |
| Agricultural Glossary | Defines common agricultural terms. |
| Chemical Glossary | Defines common chemical terms. |
| Fertilizer Placement | Defines common terms for fertilizer placement. |
| Organic Chemistry | Defines common organic chemistry terms. |
| Financial Terms | Defines common terms used in finance and stock trades. |
| Articles by Petrik Laboratories: | |
| Excerpts from our Book | Excerpts from our book Understanding the Soil Processes. |
| Effective Soil Sampling | Tips and how-to of taking soil samples. |
| Physical Soil Testing | Quickly test for how soil is behaving under dry or wet conditions. Will show need for Ca or organic matter. |
| Sugar as a Soil Amendment | Article on the use of sugar in agriculture. |
| The Bio-Organo-Mineral Complex | Explains the various systems of biological and mineral inter-relations. |
| A Word About ...Series | Part one of a series of writeups on soil. You can continue through all 6 articles. They deal with: character, texture, structure, fluids, layers, and taxonomy of the soil. |
| Microbial Differentiation | Takes a quick look at the functions of various types of soil organisms. |
| Fertilizer Acid/Base Reaction in Soils | Table of common fertilizers with their calcium equivalent for acid or base reactions. |
| Miscellaneous Articles and Info: | |
| Soil Microbiology | This soil microbiology site is large. It contains more than 130 photographs on about 70 pages. Give it time to read and study. Educational information on microbiology from the Soil Science Society of America. |
| Pesticide Tradenames Table | This table lists tradenames of pesticides and references it to the common chemical name. Useful to check on chemical activity of pesticedes. Also lists what type of pesticide it is. |
| Sustainable Agriculture | Article on sustainable agriculture and resources in the United States. A US government article. |
| Fertilizer Composition | Composition of principal fertilizers. |
| Micronutrient Sources | Table of micronutrient content in various sources. |
| USDA Agriculture Fact Book 1998 (pdf) | 1998 Agriculture Fact Book published by the USDA |
| USDA Agriculture Fact Book 1999 (pdf) | 1999 Agriculture Fact Book published by the USDA |
| USDA Agriculture Fact Book 2000 (pdf) | 2000 Agriculture Fact Book published by the USDA |
| Bushel Weights | Weight of a bushel of common commodities in pounds. |
| Nutrients Removed by Crops | Estimated nutrients removed by crops per acre. |
| Phosphorus Availability | A quick reference on factors influencing the availability of P to plants. |
| Dietary Nutrition | Dietary guidelines and nutritional facts available here. |
