1.0SAREhttps://www.sare.orgJamie Storrowhttps://www.sare.org/news/author/jstorrow/Ch 9. Managing for High-Quality Soils and Focusing on Organic Matter Management - SARErich600338<blockquote class="wp-embedded-content" data-secret="7DNViGrgpK"><a href="https://www.sare.org/publications/building-soils-for-better-crops/ch-9-managing-for-high-quality-soils-and-focusing-on-organic-matter-management/">Ch 9. Managing for High-Quality Soils and Focusing on Organic Matter Management</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sare.org/publications/building-soils-for-better-crops/ch-9-managing-for-high-quality-soils-and-focusing-on-organic-matter-management/embed/#?secret=7DNViGrgpK" width="600" height="338" title="“Ch 9. Managing for High-Quality Soils and Focusing on Organic Matter Management” — SARE" data-secret="7DNViGrgpK" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Because organic matter is lost from the soil through decay, washing and leaching, and because large amounts are required every year for crop production, the necessity of maintaining the active organic-matter content of the soil, to say nothing of the desirability of increasing it on many depleted soils, is a difficult problem.  —A.F. Gustafson, 1941  […]https://www.sare.org/wp-content/uploads/round_bales_chptr_9-bsbc4.jpeg