The Spade Test – Visual Soil Assessment in the Field (Sept 2016) скачать в хорошем качестве

The Spade Test – Visual Soil Assessment in the Field (Sept 2016)

Visit the OK-Net Arable knowledge platform for other useful materials https://organic-farmknowledge.org. OK-Net Arable has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 65265. The information contained in this video only reflects the author's view. This video explains how to take out a handy soil profile and how to interpret it by using the spade test. The video is addressed to farmers, advisors and scientist. After the introductory part of determining the objectives of the test and of comparing it with other methods, the user gets a descriptive pathway on how to extract, prepare and jugde a sample. This is done by judging its color and odor characteristiscs. Furthermore it is explained how the stratification, structure and texture of a sample can be assess by using the finger test, drop test and observations. This helps to evaluate your findings. On a short term, you can find out whether your field is ready for tillage or too wet. On a longer term, it helps you to get to know your soil better and to decide if your tillage practices need adaptations. On a spatial scale, you can find out why some parts of a field have a good growth whereas others don’t. Video sequences: 00:00 Introduction 00:34 1. Comparison with other methods 01:20 2. Who should use the spade test? 02:28 3. Determining the goals and location of the spade test 03:09 4. How to take a spade sample 04:13 5. Preparing the sample 04:45 6. Evaluating the layering 05:09 7. Evaluating colour and smell 06:04 8. Hand test for the evaluation of texture 07:08 9. Evaluating structure 08:26 10. Determining the calcium content 08:54 11. Evaluating root growth 09:12 12. The dropping test 09:34 13. Evaluating the observations