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              <h3 class="contents_title">土壤养分检测仪原理是什么</h3>
              <p class="actilecs">作者：托普云农　本文关键词：　日期：2022-9-1 13:30:10　人气：<span id="hits">55</span></p>
              <span style="color:#505050;font-family:Verdana, Arial, Helvetica, sans-serif;font-size:14px;line-height:22px;"><p><span style="font-size: 16px;">&nbsp; &nbsp; &nbsp; &nbsp; 现代农业种植管理较以往有了很大的变化，一些农用检测仪器开始出现在农业生产当中，同时随我们对土壤养分认知度的不断加深，开始利用<a href="http://www.tpturang.com" target="_self"><strong>土壤养分检测仪</strong></a>来检测土壤中的养分数据，这是时代的进步，也是农业科学化的一种体现。</span></p><p><span style="text-decoration: none; font-size: 16px;">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<strong>那么，土壤养分检测仪的原理是什么呢？</strong></span></p><p><span style="font-size: 16px;">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;土壤养分检测仪使用一定的浸提剂浸提土壤、肥料或作物植株时，有效养分进入溶液中，溶液中的养分可与特定的显色剂反应，生成有色物质使溶液呈现出颜色，溶液颜色的深浅与养分的含量呈正相关，并服从朗伯——比尔定律;配备了进行规定项目化验所必需的全部装备，可在实验室内进行快速测定，并直接打印出检测结果，进行科学配方施肥指导。</span></p><p><span style="font-size: 16px;">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;土壤养分检测仪在玉米种植基地为例：在玉米生长发育阶段中，氮素是最为重要的营养元素。施用氮肥可以满足玉米对氮素的需求；磷肥可促进玉米根系发育，提升玉米品质；同时，也要适时补充磷肥。玉米在孕穗期对钾元素的吸收量变多，开花期对钾元素的积累进入顶峰，后期则会逐渐减少。借助土壤养分检测仪进行测土配方施肥，可指导农户进行科学施肥，大幅提升肥料利用率，改善土壤环境。</span></p><p><span style="font-size: 16px;">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;而且，不同农作物应按照需肥规律、土壤供肥性能和肥料效应，合理施用肥料；适当增加缓释肥、水溶肥、微生物肥料等的施用比例，避免单一施肥、过量施肥，提升耕地质量。借助土壤养分检测仪可以快速测定耕层土壤中的养分含量，帮助技术人员指导农户合理施肥、优化施肥结构，为农业绿色发展、可持续利用耕地资源及示范推广精准农业提供支持。</span></p><p><br/></p></span></div>
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