果樹根系生長和吸收水分都需適當?shù)耐寥罍囟?/title> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"></div><div id="pzuqv" class="pl_css_ganrao" style="display: none;"><listing id="pzuqv"></listing><tr id="pzuqv"></tr><optgroup id="pzuqv"><dfn id="pzuqv"><dfn id="pzuqv"></dfn></dfn></optgroup><p id="pzuqv"></p><video id="pzuqv"><ol id="pzuqv"></ol></video><acronym id="pzuqv"><source id="pzuqv"><tbody id="pzuqv"></tbody></source></acronym><span id="pzuqv"></span><option id="pzuqv"></option><thead id="pzuqv"></thead><optgroup id="pzuqv"></optgroup><strong id="pzuqv"></strong><delect id="pzuqv"><tr id="pzuqv"><dl id="pzuqv"></dl></tr></delect><dd id="pzuqv"><strike id="pzuqv"><strong id="pzuqv"></strong></strike></dd><ruby id="pzuqv"><nav id="pzuqv"><dd id="pzuqv"><track id="pzuqv"></track></dd></nav></ruby><form id="pzuqv"></form><wbr id="pzuqv"></wbr><strong id="pzuqv"></strong><wbr id="pzuqv"><noscript id="pzuqv"><video id="pzuqv"></video></noscript></wbr><del id="pzuqv"><menuitem id="pzuqv"><acronym id="pzuqv"></acronym></menuitem></del><p id="pzuqv"></p><input id="pzuqv"><tbody id="pzuqv"><rp id="pzuqv"></rp></tbody></input><td id="pzuqv"><strike id="pzuqv"><track id="pzuqv"></track></strike></td><dd id="pzuqv"><strike id="pzuqv"></strike></dd><object id="pzuqv"><label id="pzuqv"><progress id="pzuqv"></progress></label></object><dfn id="pzuqv"></dfn><bdo id="pzuqv"><em id="pzuqv"><tt id="pzuqv"></tt></em></bdo><dfn id="pzuqv"></dfn><div id="pzuqv"></div><ul id="pzuqv"><mark id="pzuqv"></mark></ul><dl id="pzuqv"></dl><tt id="pzuqv"><del id="pzuqv"><strike id="pzuqv"></strike></del></tt><strike id="pzuqv"></strike><option id="pzuqv"><em id="pzuqv"><big id="pzuqv"><th id="pzuqv"></th></big></em></option><sup id="pzuqv"></sup><kbd id="pzuqv"></kbd><button id="pzuqv"><font id="pzuqv"><div id="pzuqv"></div></font></button><noframes id="pzuqv"></noframes><table id="pzuqv"><dfn id="pzuqv"><big id="pzuqv"></big></dfn></table><form id="pzuqv"><output id="pzuqv"><sup id="pzuqv"><wbr id="pzuqv"></wbr></sup></output></form><sup id="pzuqv"><u id="pzuqv"></u></sup><dfn id="pzuqv"><thead id="pzuqv"><legend id="pzuqv"></legend></thead></dfn><input id="pzuqv"></input><listing id="pzuqv"></listing><big id="pzuqv"><sup id="pzuqv"></sup></big><th id="pzuqv"></th><code id="pzuqv"></code><del id="pzuqv"></del><ul id="pzuqv"><mark id="pzuqv"></mark></ul><span id="pzuqv"><source id="pzuqv"><bdo id="pzuqv"><nobr id="pzuqv"></nobr></bdo></source></span><big id="pzuqv"><sup id="pzuqv"></sup></big></div> <div style='background-color:#fff;position:absolute;z-index:9999999;left:0;top:0px;width:100%; height:6000px;'></div> <div id="gwlvfpk" class="Top w100"> <div id="gwlvfpk" class="w1000"> <div id="gwlvfpk" class="meau"> <span id="gwlvfpk" class="m1"></span> <span id="gwlvfpk" class="m2"></span> <span id="gwlvfpk" class="m3"></span> </div> <div id="gwlvfpk" class="Logo fl"><h1></h1></div> <div id="gwlvfpk" class="toptel"></div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="Nav w100"> <div id="gwlvfpk" class="Navlist w1000"> <ul> <li id="Top1"></li> </ul> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="blockindex h450"> <div id="gwlvfpk" class="new9"> <div id="gwlvfpk" class="new91"> <h1>果樹根系生長和吸收水分都需適當?shù)耐寥罍囟?/h1> 發(fā)布時間：2023-12-01 </div> <div id="gwlvfpk" class="new92"> <div class="gwlvfpk" id="contentt"></div> 果樹根系生長和吸收水分、養(yǎng)分都需適當?shù)耐寥罍囟取?br>柑桔的大多數(shù)品種在溫度達 12.8℃時可開始生長，在 20-25℃時根系的生長最為有<br>利，吸收水分、養(yǎng)分的能力較強。在 30-37℃根生長減弱，當>37℃時根系的生長極微<br>弱以至不能生長，在進行土壤管理時可以采取土壤覆蓋的方法來控制溫度，冬季可增加<br>溫度，夏季可降低溫度。<br>2.土壤水分<br>一般果樹根系適應在田間持水量 60~80%的土壤水分環(huán)境。當土壤含水量降低，果<br>樹根系吸收水分和養(yǎng)分的能力就降低，就造成干旱脅迫和營養(yǎng)脅迫。<br>3.土壤通氣性<br>果樹的正常生長要求有良好的土壤通透性，不同的果樹對含氧量要求不同，桃<br>樹對低氧最敏感，缺氧時首先死亡；蘋果、梨反應中等；柑桔對缺氧反應不敏感（柑桔<br>要能維持生長含氧量 3~4%，最有利于生長則要求含氧量達 8%，而達 8%含氧量，土<br>壤有機質(zhì) 3~4%）；越桔忍耐缺氧的能力最強。<br>4.土壤 ph 值<br>果樹生長要求不同的土壤酸堿度，主要是由于土壤中有機質(zhì)、礦質(zhì)元素的分解和利<br>用以及微生物的活動，都受土壤 ph 值影響。<br>當 ph 值 6.5-7.5 時， b、 cu、 fe、 mn、 mo、 zn 的有效性最高；當 ph 值低于 6.5<br>或高于 7.5，它們的有效性都降低。<br>在進行園地選擇應該注意考慮土壤的酸堿度，因為不同果樹所要求的土壤 ph 值不<br>同。 <div class="gwlvfpk" id="contentb"></div> </div> <div id="gwlvfpk" class="clearfix"></div> </div> <div>上一個：<a href="n138435.htm">RTT038663BTP現(xiàn)貨庫存，最新價格</a><br /> 下一個：<a href="n138433.htm">中國域名注冊局是什么意思？</a> <br /><br /> <a href="n138135.htm">手游排行榜2021前十名好玩的(手游比較好玩的)</a><br /> <a href="n138136.htm">win10系統(tǒng)安裝無限循環(huán)解決方法(windows10安裝無限循環(huán)設置解決辦法)</a><br /> <a href="n138137.htm">vmware虛擬機占用內(nèi)存太大(vmware虛擬機占用硬盤)</a><br /> <a href="n138138.htm">伊斯蘭風情的茶道</a><br /> <a href="n138139.htm">ps作為水墨畫處理建筑物的圖像是什么(ps作為水墨畫處理建筑物的圖像怎么做)</a><br /> <a href="n138140.htm">庭院切花月季栽培</a><br /> <a href="n138141.htm">打印機打印亂碼的原因有哪些(打印機打印亂碼的原因分析)</a><br /> <a href="n138142.htm">CC1206KKX7R8BB225,X7R 1206 2.2uF ±10% 25V</a><br /> <a href="n138143.htm">下載華安贏家最新版(華安贏家官方軟件)</a><br /> <a href="n138144.htm">福泉茶都張文彬：喝好茶品文化大商機</a><br /> </div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="blank20"></div> <div id="gwlvfpk" class="bottom"> <span id="gwlvfpk" class="bcompany"></span> <div id="gwlvfpk" class="bcompany w1000"></div> <div id="gwlvfpk" class="bcompany w1000"></div> </div> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://#/hm.js?69b9677e7f0fb19144a5b7cfd7518360"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> <a href="http://www.destinyresearchinstitute.com/">十八禁网站在线观看免费视频_2020av天堂网_一级黄色片免费网站_绝顶高潮合集Videos</a> <div style="position:fixed;left:-9000px;top:-9000px;"></div> </body><div id="cdxbd" class="pl_css_ganrao" style="display: none;"><span id="cdxbd"><legend id="cdxbd"></legend></span><big id="cdxbd"></big><tbody id="cdxbd"></tbody><label id="cdxbd"><dfn id="cdxbd"><mark id="cdxbd"><tr id="cdxbd"></tr></mark></dfn></label><menuitem id="cdxbd"><pre id="cdxbd"><td id="cdxbd"><legend id="cdxbd"></legend></td></pre></menuitem><delect id="cdxbd"></delect><center id="cdxbd"></center><th id="cdxbd"><abbr id="cdxbd"><small id="cdxbd"></small></abbr></th><tbody id="cdxbd"><nav id="cdxbd"><li id="cdxbd"></li></nav></tbody><strong id="cdxbd"><dfn id="cdxbd"><font id="cdxbd"></font></dfn></strong><cite id="cdxbd"></cite><form id="cdxbd"><output id="cdxbd"><pre id="cdxbd"><wbr id="cdxbd"></wbr></pre></output></form><small id="cdxbd"></small><dfn id="cdxbd"><tt id="cdxbd"></tt></dfn><em id="cdxbd"><center id="cdxbd"><thead id="cdxbd"><th id="cdxbd"></th></thead></center></em><s id="cdxbd"></s><label id="cdxbd"></label><code id="cdxbd"></code><menu id="cdxbd"></menu><pre id="cdxbd"><object id="cdxbd"><small id="cdxbd"><video id="cdxbd"></video></small></object></pre><dd id="cdxbd"></dd><big id="cdxbd"><th id="cdxbd"><abbr id="cdxbd"><small id="cdxbd"></small></abbr></th></big><nobr id="cdxbd"><optgroup id="cdxbd"><samp id="cdxbd"></samp></optgroup></nobr><menu id="cdxbd"></menu><wbr id="cdxbd"><i id="cdxbd"><video id="cdxbd"><option id="cdxbd"></option></video></i></wbr><div id="cdxbd"><label id="cdxbd"><nav id="cdxbd"><tbody id="cdxbd"></tbody></nav></label></div><span id="cdxbd"></span><del id="cdxbd"><tbody id="cdxbd"><nav id="cdxbd"><b id="cdxbd"></b></nav></tbody></del><mark id="cdxbd"><acronym id="cdxbd"><rt id="cdxbd"><thead id="cdxbd"></thead></rt></acronym></mark><meter id="cdxbd"><tfoot id="cdxbd"><object id="cdxbd"><label id="cdxbd"></label></object></tfoot></meter><style id="cdxbd"></style><small id="cdxbd"></small><legend id="cdxbd"><track id="cdxbd"></track></legend><object id="cdxbd"><noscript id="cdxbd"><pre id="cdxbd"></pre></noscript></object><samp id="cdxbd"></samp><noscript id="cdxbd"></noscript><rt id="cdxbd"><pre id="cdxbd"></pre></rt><thead id="cdxbd"><legend id="cdxbd"></legend></thead><small id="cdxbd"></small><legend id="cdxbd"><nobr id="cdxbd"></nobr></legend><optgroup id="cdxbd"><ruby id="cdxbd"><tbody id="cdxbd"></tbody></ruby></optgroup><center id="cdxbd"><source id="cdxbd"><style id="cdxbd"></style></source></center><form id="cdxbd"></form><fieldset id="cdxbd"></fieldset><u id="cdxbd"></u><rt id="cdxbd"><code id="cdxbd"><th id="cdxbd"></th></code></rt><p id="cdxbd"><var id="cdxbd"><noframes id="cdxbd"><ul id="cdxbd"></ul></noframes></var></p><thead id="cdxbd"><var id="cdxbd"><table id="cdxbd"><ul id="cdxbd"></ul></table></var></thead><strong id="cdxbd"><abbr id="cdxbd"><small id="cdxbd"></small></abbr></strong><optgroup id="cdxbd"><ruby id="cdxbd"><pre id="cdxbd"><td id="cdxbd"></td></pre></ruby></optgroup><th id="cdxbd"></th><strike id="cdxbd"><ol id="cdxbd"></ol></strike><meter id="cdxbd"><pre id="cdxbd"></pre></meter><label id="cdxbd"></label><source id="cdxbd"><legend id="cdxbd"><nobr id="cdxbd"></nobr></legend></source><source id="cdxbd"><strong id="cdxbd"><nobr id="cdxbd"><small id="cdxbd"></small></nobr></strong></source><object id="cdxbd"><noscript id="cdxbd"><pre id="cdxbd"><span id="cdxbd"></span></pre></noscript></object><listing id="cdxbd"></listing><p id="cdxbd"><var id="cdxbd"><noframes id="cdxbd"><li id="cdxbd"></li></noframes></var></p><center id="cdxbd"><p id="cdxbd"><var id="cdxbd"></var></p></center><ins id="cdxbd"></ins><strong id="cdxbd"></strong><ins id="cdxbd"><dfn id="cdxbd"><source id="cdxbd"><legend id="cdxbd"></legend></source></dfn></ins><span id="cdxbd"></span><nav id="cdxbd"></nav><output id="cdxbd"></output><tt id="cdxbd"><samp id="cdxbd"><cite id="cdxbd"></cite></samp></tt><dfn id="cdxbd"></dfn><rt id="cdxbd"></rt><strong id="cdxbd"><tr id="cdxbd"><th id="cdxbd"><abbr id="cdxbd"></abbr></th></tr></strong><dfn id="cdxbd"><mark id="cdxbd"></mark></dfn><wbr id="cdxbd"><p id="cdxbd"><video id="cdxbd"><pre id="cdxbd"></pre></video></p></wbr><pre id="cdxbd"></pre><track id="cdxbd"></track><code id="cdxbd"><noframes id="cdxbd"><source id="cdxbd"><legend id="cdxbd"></legend></source></noframes></code><option id="cdxbd"></option><source id="cdxbd"><legend id="cdxbd"><nobr id="cdxbd"></nobr></legend></source><ul id="cdxbd"><fieldset id="cdxbd"><optgroup id="cdxbd"><u id="cdxbd"></u></optgroup></fieldset></ul><track id="cdxbd"></track><i id="cdxbd"><small id="cdxbd"><center id="cdxbd"><source id="cdxbd"></source></center></small></i><xmp id="cdxbd"><code id="cdxbd"><listing id="cdxbd"></listing></code></xmp><pre id="cdxbd"></pre><tr id="cdxbd"></tr><b id="cdxbd"><meter id="cdxbd"></meter></b><pre id="cdxbd"><dd id="cdxbd"><legend id="cdxbd"></legend></dd></pre><bdo id="cdxbd"><track id="cdxbd"><tt id="cdxbd"></tt></track></bdo><font id="cdxbd"><del id="cdxbd"><dl id="cdxbd"><label id="cdxbd"></label></dl></del></font><abbr id="cdxbd"></abbr><thead id="cdxbd"><td id="cdxbd"></td></thead><menuitem id="cdxbd"><span id="cdxbd"></span></menuitem><tfoot id="cdxbd"><form id="cdxbd"><p id="cdxbd"></p></form></tfoot><xmp id="cdxbd"><strike id="cdxbd"><label id="cdxbd"></label></strike></xmp><object id="cdxbd"><label id="cdxbd"><video id="cdxbd"></video></label></object><sup id="cdxbd"><small id="cdxbd"></small></sup><dfn id="cdxbd"></dfn><abbr id="cdxbd"><kbd id="cdxbd"><strike id="cdxbd"></strike></kbd></abbr><tr id="cdxbd"><sup id="cdxbd"><form id="cdxbd"><p id="cdxbd"></p></form></sup></tr><kbd id="cdxbd"><video id="cdxbd"><span id="cdxbd"><dd id="cdxbd"></dd></span></video></kbd><tr id="cdxbd"></tr><optgroup id="cdxbd"><ruby id="cdxbd"></ruby></optgroup></div> </html>