園林植物如何正確澆灌返青水

秋?

<h3><span style="white-space: normal; caret-color: rgb(63, 63, 63); color: rgb(63, 63, 63); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 1.5px; text-align: justify; -webkit-text-size-adjust: 100%; background-color: rgba(33, 172, 237, 0.0980392);">隨著氣溫的不斷回升，綠化苗木開始復(fù)蘇萌芽，為保證苗木及時(shí)返青，園林工人們會(huì)為苗木澆灌返青水，以提高苗木的返青成活率。那么，早春園林植物該如何澆返青水呢？在時(shí)間和方法上又該如何把握？</span><br></h3> <p style="font-size: 16px; text-indent: 0em; white-space: normal; margin-top: 5px; margin-right: 5px; margin-left: 5px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; -webkit-text-size-adjust: 100%; line-height: 1.75em; letter-spacing: 0.25px; text-align: center; word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 24px; font-family: "Microsoft YaHei", 微軟雅黑; color: rgb(54, 96, 146); word-wrap: break-word !important;">澆返青水對(duì)園林植物的意義」</span></strong></h3><p style="font-size: 16px; white-space: normal; margin: 10px 10px 5px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">立春之后氣溫就開始慢慢升高，水分的蒸發(fā)量也逐漸加大，經(jīng)過一冬水分的消耗，土壤中的水分本來就少，再加上北方的冬天、春天還都是風(fēng)大、少雨，所以經(jīng)常會(huì)出現(xiàn)春旱的現(xiàn)象。</span></h3><p style="font-size: 16px; white-space: normal; margin-right: 10px; margin-bottom: 5px; margin-left: 10px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">同時(shí)，立春之后隨著氣溫回升，園林植物的根系開始活動(dòng)，苗木、草坪也陸陸續(xù)續(xù)開始萌芽、返青進(jìn)入生長期，對(duì)水的需求越來越大。這個(gè)時(shí)候水分對(duì)植物來說十分重要，因此有春雨“貴如油”之說。</span></h3><p style="font-size: 16px; white-space: normal; margin-right: 10px; margin-bottom: 10px; margin-left: 10px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">適時(shí)澆灌返青水，能夠緩解春旱的現(xiàn)象，是保證園林植物順利返青，苗木新梢正常生長、展葉的重要措施。另外，由于水具有較大的比熱，澆灌返青水后還可以有效地降低地溫，延緩植物發(fā)芽，從而避免晚霜或倒春寒危害。所以說，早春澆灌返青水，對(duì)園林植物的健康生長有著重要意義</span><span style="max-width: 100%; line-height: 24px; font-family: "Microsoft YaHei", 微軟雅黑; word-wrap: break-word !important;">！</span></h3> <p style="font-size: 16px; text-indent: 0em; white-space: normal; margin-top: 5px; margin-right: 5px; margin-left: 5px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; -webkit-text-size-adjust: 100%; line-height: 1.75em; letter-spacing: 0.25px; text-align: center; word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 24px; font-family: "Microsoft YaHei", 微軟雅黑; color: rgb(54, 96, 146); word-wrap: break-word !important;">如何確定園林植物澆灌返青水的時(shí)間」</span></strong></h3><p style="font-size: 16px; white-space: normal; margin: 10px 10px 5px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">在我國，南北的氣溫差異較大，所以澆灌返青水的時(shí)間也不一樣，主要還是根據(jù)當(dāng)?shù)氐臍鉁貋頉Q定。</span></h3><p style="font-size: 16px; white-space: normal; margin-right: 10px; margin-bottom: 5px; margin-left: 10px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">一般來說，在0℃的時(shí)候土壤開始解凍，5℃的時(shí)候北方大部分的喜涼植物開始生長，多數(shù)樹木開始萌動(dòng)，冷季型草坪也開始積極生長。10℃左右，喜溫植物開始生長，喜涼作物在這一溫度下開始迅速生長。15℃左右，喜溫植物物積極生長，熱帶植物開始生長。</span></h3><p style="font-size: 16px; white-space: normal; margin-right: 10px; margin-bottom: 5px; margin-left: 10px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; -webkit-text-size-adjust: 100%; text-indent: 32px; letter-spacing: 0.25px; line-height: 1.5em; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 22.5px; font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; word-wrap: break-word !important;">因此，確定澆返青水的時(shí)間應(yīng)根據(jù)當(dāng)?shù)仄骄鶜鉁剡_(dá)到0℃至5℃的日期，和植物開始生長的界限溫度而定。一般當(dāng)氣溫穩(wěn)定在3℃左右就可以開始澆灌返青水了，因?yàn)楫?dāng)平均氣溫大于3℃的時(shí)候，土壤的凍土層已經(jīng)化開，澆返青水后，園林植物就可以吸收利用。</span></h3> <h3><span style="white-space: normal; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: "Microsoft YaHei", 微軟雅黑; font-size: 15px; letter-spacing: 0.25px; text-align: justify; text-indent: 32px; -webkit-text-size-adjust: 100%;">在中原地區(qū)一般雨水節(jié)氣后，溫度可以穩(wěn)定在3℃左右，所以中原地區(qū)澆返青水的時(shí)間大概是每年的2月20日左右。在北京、東三省地區(qū)、華中地區(qū)可以根據(jù)氣溫穩(wěn)定通過3℃的時(shí)間來確定具體的返青水時(shí)間。華南地區(qū)植物四季常綠，應(yīng)根據(jù)當(dāng)?shù)刂参镩L生情況和旱情靈活常握澆水時(shí)間和澆水量。對(duì)于突然出現(xiàn)高溫的地區(qū)，為了避免因發(fā)芽早而發(fā)生凍害，也應(yīng)盡早澆返青水。</span><br></h3> <p style="font-size: 16px; text-indent: 0em; white-space: normal; margin-top: 5px; margin-right: 5px; margin-left: 5px; max-width: 100%; clear: both; min-height: 1em; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; -webkit-text-size-adjust: 100%; line-height: 1.75em; letter-spacing: 0.25px; text-align: center; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(54, 96, 146); word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;"><span style="max-width: 100%; line-height: 24px; font-family: "Microsoft YaHei", 微軟雅黑; word-wrap: break-word !important;">如何正確澆灌返青水」</span></strong></span></h3><section class="" data-tools="135編輯器" data-id="85952" data-color="#7a9aac" data-custom="#7a9aac" style="font-size: 16px; white-space: normal; max-width: 100%; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.5440000295639038px; text-align: justify; -webkit-text-size-adjust: 100%; border: 0px none; word-wrap: break-word !important;"><section style="margin: 20px 10px 10px; padding: 5px; max-width: 100%; box-shadow: rgb(122, 154, 172) 5px 5px 3px 0px; background-color: rgb(250, 250, 250); word-wrap: break-word !important;"><section style="margin-top: -15px; margin-left: 20px; max-width: 100%; text-align: left; width: auto; word-wrap: break-word !important;"><section style="padding: 4px 10px; max-width: 100%; border-top-left-radius: 0.2em; border-top-right-radius: 1.1em; border-bottom-right-radius: 0.2em; border-bottom-left-radius: 1.1em; box-shadow: rgb(165, 165, 165) 4px 4px 2px 0px; color: rgb(255, 255, 255); display: inline-block; font-size: 20px; background-color: rgb(122, 154, 172); word-wrap: break-word !important;"><strong class="" data-original-title="" title="" style="max-width: 100%; word-wrap: break-word !important;">1</strong></section><section class="" style="padding: 5px 10px; max-width: 100%; word-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">澆水的原則</span></strong></h3><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">澆灌返青水的原則是一次要澆透，不同植物澆水的次數(shù)不盡相同。比如說，喬木有較深的根系，可以吸收利用深層土壤中的水分，春季澆一次透水，能夠供應(yīng)喬木正常生根發(fā)芽所需要的水分；但是綠籬、宿根花卉、草坪等園林植物根系太淺，再加上春季風(fēng)多降水少，土壤水分蒸發(fā)快，澆一次透水不能保證其正常返青。</span></h3></section></section></section></section><section data-role="paragraph" class="" style="font-size: 16px; white-space: normal; max-width: 100%; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.5440000295639038px; text-align: justify; -webkit-text-size-adjust: 100%; border: 0px none; word-wrap: break-word !important;"><p style="margin-right: 10px; margin-left: 10px; max-width: 100%; clear: both; min-height: 1em; text-align: center; word-wrap: break-word !important;"><br></h3></section><section class="" data-tools="135編輯器" data-id="85952" data-color="#7a9aac" data-custom="#7a9aac" style="font-size: 16px; white-space: normal; max-width: 100%; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.5440000295639038px; text-align: justify; -webkit-text-size-adjust: 100%; border: 0px none; word-wrap: break-word !important;"><section style="margin: 20px 10px 10px; padding: 5px; max-width: 100%; box-shadow: rgb(122, 154, 172) 5px 5px 3px 0px; background-color: rgb(250, 250, 250); word-wrap: break-word !important;"><section style="margin-top: -15px; margin-left: 20px; max-width: 100%; text-align: left; width: auto; word-wrap: break-word !important;"><section style="padding: 4px 10px; max-width: 100%; border-top-left-radius: 0.2em; border-top-right-radius: 1.1em; border-bottom-right-radius: 0.2em; border-bottom-left-radius: 1.1em; box-shadow: rgb(165, 165, 165) 4px 4px 2px 0px; color: rgb(255, 255, 255); display: inline-block; font-size: 20px; background-color: rgb(122, 154, 172); word-wrap: break-word !important;"><strong class="" data-original-title="" title="" data-num="2" style="max-width: 100%; word-wrap: break-word !important;">2</strong></section><section class="" style="padding: 5px 10px; max-width: 100%; word-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;">苗木及綠地植物澆灌返青水的注意事項(xiàng)</strong></span></h3><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">在北方地區(qū)，綠地植物和喬木澆灌返青水的時(shí)間，差不多也是在二月下旬和三月初之間，喬木的持水深度不少于60cm，灌木不少于40cm，宿根地被植物不少于20cm。</span></h3><p style="margin-top: 5px; max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">對(duì)于苗木一般來說需要開樹堰進(jìn)行灌溉，樹堰應(yīng)開在樹冠投影的垂直線下，不要開得太深以免傷根，堰壁培土要結(jié)實(shí)以免被水沖壞，堰底地面要平坦，保證吃水均勻。水滲透后要及時(shí)中耕松土，否則水分很快蒸發(fā)，灌水效果差。</span></h3></section></section></section></section><section class="" data-tools="135編輯器" data-id="85952" data-color="#7a9aac" data-custom="#7a9aac" style="font-size: 16px; white-space: normal; max-width: 100%; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.5440000295639038px; text-align: justify; -webkit-text-size-adjust: 100%; border: 0px none; word-wrap: break-word !important;"><section style="margin: 20px 10px 10px; padding: 5px; max-width: 100%; box-shadow: rgb(122, 154, 172) 5px 5px 3px 0px; background-color: rgb(250, 250, 250); word-wrap: break-word !important;"><section style="margin-top: -15px; margin-left: 20px; max-width: 100%; text-align: left; width: auto; word-wrap: break-word !important;"><section style="padding: 4px 10px; max-width: 100%; border-top-left-radius: 0.2em; border-top-right-radius: 1.1em; border-bottom-right-radius: 0.2em; border-bottom-left-radius: 1.1em; box-shadow: rgb(165, 165, 165) 4px 4px 2px 0px; color: rgb(255, 255, 255); display: inline-block; font-size: 20px; background-color: rgb(122, 154, 172); word-wrap: break-word !important;"><strong class="" data-original-title="" title="" data-num="3" style="max-width: 100%; word-wrap: break-word !important;">3</strong></section><section class="" style="padding: 5px 10px; max-width: 100%; word-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><strong style="max-width: 100%; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">草坪澆灌返青水的注意事項(xiàng)</span></strong></h3><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">在北方地區(qū)一般來說，冷季型草坪在2月下旬根系就開始活動(dòng)了，因此一般是在2月下旬至3月初澆灌返青水，草坪的持水深度為15cm~20cm之間。</span></h3><p style="margin-top: 5px; max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">（1）澆返青水要及時(shí)</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">在春季地表解凍時(shí)，要立即澆返青水，否則草坪草可能會(huì)缺水死亡。這主要是因?yàn)榇禾鞖鉁鼗厣孛嫠终舭l(fā)快，草坪也開始生長，蒸騰作用加劇。如果此時(shí)水分供應(yīng)不足，草坪草會(huì)在半個(gè)月左右就缺水死亡。</span></h3><p style="margin-top: 5px; max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">（2）后期合理控水</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; word-wrap: break-word !important;">澆返青水后，只要草坪不出現(xiàn)明顯的干旱現(xiàn)象，應(yīng)盡量少澆水。這段時(shí)間地面溫度回升緩慢，如果水澆多了會(huì)降低地溫，對(duì)草坪根系的生長不利。嚴(yán)重的時(shí)候會(huì)使土壤因持水量過大而嚴(yán)重缺氧，因此要合理控水。</span></h3></section></section></section></section>

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園林植物如何正確澆灌返青水

秋?