{"id":1611,"date":"2024-11-13T14:53:41","date_gmt":"2024-11-13T14:53:41","guid":{"rendered":"http:\/\/castco.wpenginepowered.com\/?post_type=ht_kb&p=1611"},"modified":"2024-11-25T18:19:53","modified_gmt":"2024-11-25T18:19:53","slug":"guidance-slake-wet-aggregate-stability-test","status":"publish","type":"ht_kb","link":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/","title":{"rendered":"Guidance: Slake (wet aggregate stability) test"},"content":{"rendered":"\n

Based on Vidacycle\u2019s approach<\/em>.You can download the two-page pdf guide of this information (see Article Attachments, below)<\/em>.<\/em><\/p>\n\n\n\n

Note: Choose a day when the soil is not waterlogged and has not been recently cultivated.<\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

\n
\n
\n
    \n
  1. Locate your chosen sample site<\/strong>: If you have done the test previously, use the GPS mapping feature on Soilmentor to find the same spot.<\/li>\n\n\n\n
  2. Dig<\/strong>: Insert your spade to about 20 cm depth into the soil. Dig up the soil and gently break it apart to release pieces of soil.<\/li>\n\n\n\n
  3. Collect<\/strong>: Collect a fist-sized sample of soil put in small labelled bag to take home\/to the office.<\/li>\n\n\n\n
  4. Dry overnight<\/strong>: Back at the office: select three 1-3mm sized lumps of soil from the bag and leave them to dry overnight. They may need another 2-3 days more drying if very wet \u2013 must be completely dry before testing.<\/li>\n\n\n\n
  5. Place in sieve<\/strong>: Once dry, arrange pieces of soil on the sieve and fully immerse into water until the lip of the sieve is reached. A light coloured water bowl (as a background) will make it easier to see how the soil is behaving.<\/li>\n\n\n\n
  6. Time for five minutes<\/strong>: Start timer for 5 minutes, & observe the pieces under water. Score the behaviour of the pieces in Soilmentor using the scores on the following page.<\/li>\n\n\n\n
  7. Optional: comparison<\/strong>: You may like to take another sample in an long-term uncultivated part of the farm, e.g. woodland, for a good comparison to assess the effect of field management on aggregate stability.<\/li>\n<\/ol>\n\n\n\n

    <\/p>\n<\/div>\n\n\n\n

    \n
    \"\"<\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n

    Don’t forget to take photos of you doing your soil sampling and of the results!<\/p>\n\n\n\n

    <\/div>\n\n\n\n
    \n
    \n
    \"\"<\/a><\/figure>\n<\/div>\n\n\n\n
    \n

    Scoring<\/h3>\n\n\n\n

    Once soil has been submerged for five minutes (step 6), use the following scores:<\/strong><\/p>\n\n\n\n

    0: Dissolves into single grains <\/strong>\u2013 lump collapses completely, as soil is too unstable to isolate aggregates.<\/p>\n\n\n\n

    0.5: Soil slumps into pyramid <\/strong>\u2013 lump collapses into a cone of <2mm grains, water is cloudy.<\/p>\n\n\n\n

    1: Breaks into angular pieces \u2013 <\/strong>the lump breaks up into larger angular pieces, indicating a loose, granular surface layer.<\/p>\n\n\n\n

    1.5: Stays mainly intact \u2013 <\/strong>lump edges crumble slightly but remains largely intact.<\/p>\n\n\n\n

    2: Lump intact \u2013 <\/strong>lump remains completely intact and the water is clear, indicating your soil is resistant to erosion.<\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

    Don’t forget to take photos of your soil any results and upload to Soilmentor.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Based on Vidacycle\u2019s approach.You can download the two-page pdf guide of this information (see Article Attachments, below). Note: Choose a day when the soil is…<\/p>\n","protected":false},"author":2,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"ht-kb-category":[50],"ht-kb-tag":[],"class_list":["post-1611","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-soil-testing-methods"],"acf":[],"yoast_head":"\nGuidance: Slake (wet aggregate stability) test - CastCo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guidance: Slake (wet aggregate stability) test - CastCo\" \/>\n<meta property=\"og:description\" content=\"Based on Vidacycle\u2019s approach.You can download the two-page pdf guide of this information (see Article Attachments, below). Note: Choose a day when the soil is...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/\" \/>\n<meta property=\"og:site_name\" content=\"CastCo\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-25T18:19:53+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/castco.org\/wp-content\/uploads\/2024\/11\/tempImagegfxxHS.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/\",\"url\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/\",\"name\":\"Guidance: Slake (wet aggregate stability) test - CastCo\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/castco.org\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/castco.org\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/tempImagegfxxHS.jpg\",\"datePublished\":\"2024-11-13T14:53:41+00:00\",\"dateModified\":\"2024-11-25T18:19:53+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/#primaryimage\",\"url\":\"http:\\\/\\\/castco.org\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/tempImagegfxxHS.jpg\",\"contentUrl\":\"http:\\\/\\\/castco.org\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/tempImagegfxxHS.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/castco.org\\\/knowledge-base\\\/guidance-slake-wet-aggregate-stability-test\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/castco.org\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Guidance: Slake (wet aggregate stability) test\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/castco.org\\\/#website\",\"url\":\"https:\\\/\\\/castco.org\\\/\",\"name\":\"CaSTCo\",\"description\":\"Catchment Systems Thinking Cooperative\",\"publisher\":{\"@id\":\"https:\\\/\\\/castco.org\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/castco.org\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/castco.org\\\/#organization\",\"name\":\"CaSTCo\",\"url\":\"https:\\\/\\\/castco.org\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/castco.org\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"http:\\\/\\\/castco.org\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/castco-1.png\",\"contentUrl\":\"http:\\\/\\\/castco.org\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/castco-1.png\",\"width\":1500,\"height\":573,\"caption\":\"CaSTCo\"},\"image\":{\"@id\":\"https:\\\/\\\/castco.org\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Guidance: Slake (wet aggregate stability) test - CastCo","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/","og_locale":"en_US","og_type":"article","og_title":"Guidance: Slake (wet aggregate stability) test - CastCo","og_description":"Based on Vidacycle\u2019s approach.You can download the two-page pdf guide of this information (see Article Attachments, below). Note: Choose a day when the soil is...","og_url":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/","og_site_name":"CastCo","article_modified_time":"2024-11-25T18:19:53+00:00","og_image":[{"url":"http:\/\/castco.org\/wp-content\/uploads\/2024\/11\/tempImagegfxxHS.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/","url":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/","name":"Guidance: Slake (wet aggregate stability) test - CastCo","isPartOf":{"@id":"https:\/\/castco.org\/#website"},"primaryImageOfPage":{"@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/#primaryimage"},"image":{"@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/#primaryimage"},"thumbnailUrl":"http:\/\/castco.org\/wp-content\/uploads\/2024\/11\/tempImagegfxxHS.jpg","datePublished":"2024-11-13T14:53:41+00:00","dateModified":"2024-11-25T18:19:53+00:00","breadcrumb":{"@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/#primaryimage","url":"http:\/\/castco.org\/wp-content\/uploads\/2024\/11\/tempImagegfxxHS.jpg","contentUrl":"http:\/\/castco.org\/wp-content\/uploads\/2024\/11\/tempImagegfxxHS.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/castco.org\/knowledge-base\/guidance-slake-wet-aggregate-stability-test\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/castco.org\/"},{"@type":"ListItem","position":2,"name":"Guidance: Slake (wet aggregate stability) test"}]},{"@type":"WebSite","@id":"https:\/\/castco.org\/#website","url":"https:\/\/castco.org\/","name":"CaSTCo","description":"Catchment Systems Thinking Cooperative","publisher":{"@id":"https:\/\/castco.org\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/castco.org\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/castco.org\/#organization","name":"CaSTCo","url":"https:\/\/castco.org\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/castco.org\/#\/schema\/logo\/image\/","url":"http:\/\/castco.org\/wp-content\/uploads\/2024\/10\/castco-1.png","contentUrl":"http:\/\/castco.org\/wp-content\/uploads\/2024\/10\/castco-1.png","width":1500,"height":573,"caption":"CaSTCo"},"image":{"@id":"https:\/\/castco.org\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/castco.org\/json\/wp\/v2\/ht-kb\/1611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/castco.org\/json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/castco.org\/json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/castco.org\/json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/castco.org\/json\/wp\/v2\/comments?post=1611"}],"version-history":[{"count":0,"href":"https:\/\/castco.org\/json\/wp\/v2\/ht-kb\/1611\/revisions"}],"wp:attachment":[{"href":"https:\/\/castco.org\/json\/wp\/v2\/media?parent=1611"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/castco.org\/json\/wp\/v2\/ht-kb-category?post=1611"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/castco.org\/json\/wp\/v2\/ht-kb-tag?post=1611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}