1.0Department of Irrigation (WP)https://irrigation.wp.gov.lk/enrich600338<blockquote class="wp-embedded-content" data-secret="KZQlkynMIg"><a href="https://irrigation.wp.gov.lk/en/">Official Website of Department of Irrigation (Western Province)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://irrigation.wp.gov.lk/en/embed/#?secret=KZQlkynMIg" width="600" height="338" title="“Official Website of Department of Irrigation (Western Province)” — Department of Irrigation (WP)" data-secret="KZQlkynMIg" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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); //# sourceURL=https://irrigation.wp.gov.lk/en/wp-includes/js/wp-embed.min.js </script> An adequate water supply at correct time and drainage of excess water are major effective factors to obtain a high yield. The Provincial Department of Irrigation (W.P.) carries out the maintenance of irrigation system in the province which is the basic requirement for agriculture in order to increase the amount of agricultural production and to