富平县2024年冬季麦田控旺防冻技术措施
<section style="margin:10px 0px;"><section style="display: inline-block; width: 100%; vertical-align: top; border-width: 0px; box-shadow: rgb(0, 0, 0) 0px 0px 0px; box-sizing: border-box;" data-width="100%"><section style="margin-top: 10px; margin-bottom: 10px;"><section style="border-width: 1px; border-style: solid; border-color: rgb(232, 73, 63); border-radius: 5px; box-sizing: border-box;"><section><section style="width: 5px; height: 5px; border-bottom: 1px solid rgb(232, 73, 63); border-right: 1px solid rgb(232, 73, 63); float: left; border-top-color: rgb(232, 73, 63); border-left-color: rgb(232, 73, 63); box-sizing: border-box;"></section><section style="width: 5px; height: 5px; border-bottom: 1px solid rgb(232, 73, 63); border-left: 1px solid rgb(232, 73, 63); float: right; border-top-color: rgb(232, 73, 63); border-right-color: rgb(232, 73, 63); box-sizing: border-box;"></section><section style="clear: both;"></section></section><section style="padding-right: 4px; padding-left: 4px; box-sizing: border-box;"><section style="width: 100%; border-width: 1px; border-style: solid; border-color: rgb(232, 73, 63); margin-top: -1px; margin-bottom: -1px; padding-top: 10px; padding-bottom: 10px; box-sizing: border-box;" data-width="100%"><section><section style="font-size: 14px; line-height: 1.8; letter-spacing: 2px; padding-right: 10px; padding-left: 10px; box-sizing: border-box;"><section data-support="96编辑器" data-style-id="41269"><section style="margin-top: 10px;margin-bottom: 10px"><section style="border-top: 1px solid rgb(255, 201, 86);border-left: 1px solid rgb(255, 201, 86);padding-top: 8px;padding-left: 8px;border-top-left-radius: 13px"><section style="background-color:#faf9f7;border-radius:13px;padding:15px;transform: rotate(0deg);-webkit-transform: rotate(0deg);-moz-transform: rotate(0deg);-ms-transform: rotate(0deg);-o-transform: rotate(0deg)"><section style="line-height: 1.75"><section><section style="text-indent: 2em;line-height: 2em"><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">今年秋播以来我县总体气温偏高，土壤墒情较好，部分早播麦田有旺长风险，部分播量较大麦田出现了群体偏大，植株个体叶片细长、茎秆细弱的假旺苗现象。针对这类麦田，应以控为主，及时控旺转壮，加强管理，保苗安全越冬。具体技术措施如下：<br/></span></section><section style="text-indent: 2em;line-height: 2em"><span style="color: rgb(61, 167, 66)"><strong><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">1.适时镇压。</span></strong></span><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">对于有旺长风险的麦田，要适时进行机械镇压。镇压要掌握压干不压湿、压大不压小、弱轻旺重的原则。在昼夜平均温度4-6度左右时，选择晴天上午10点后到下午3点前进行镇压，控上促下，提高小麦抗逆性。</span></section><section style="text-indent: 2em;line-height: 2em"><span style="color: rgb(61, 167, 66)"><strong><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">2.中耕划锄。</span></strong></span><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">对于播种偏早有旺长风险田块，应当重耙耱深中耕，控旺转壮，壮苗田应轻耙或浅锄划，促根增蘖。在小麦行间深锄5-7厘米，切断小麦部分根系，减少植物对水分、养分的吸收，以抑制地上部分生长，减少无效分蘖，促进根系发育。</span></section><section style="text-indent: 2em;line-height: 2em"><span style="color: rgb(61, 167, 66)"><strong><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">3.化学调控</span></strong></span><span style="color: rgb(61, 167, 66)"><strong><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">。</span></strong></span><span style="font-size: 18px"><span style="font-family: 仿宋;letter-spacing: 0">对播量过大的稠苗麦田及群</span><span style="font-family: 仿宋">体偏大、叶片细长、分蘖不足、个体偏弱的假旺苗田块</span><span style="font-family: 仿宋;letter-spacing: 0">，</span><span style="font-family: 仿宋">在分蘖期(4至5叶期)叶面喷施多效唑、烯效唑等生长调节剂进行调控。抑制小麦茎杆伸长、缩短节间、促进分蘖、增加抗逆能力，促根健苗、增强抗性，确保麦苗安全越冬。做到不重喷，不漏喷。</span></span></section><section style="text-indent: 2em;line-height: 2em"><span style="color: rgb(61, 167, 66)"><strong><span style="font-size: 18px;font-family: 仿宋;letter-spacing: 0">4.肥水保壮。</span></strong></span><span style="font-size: 18px"><span style="font-family: 仿宋;letter-spacing: 0">对于播种偏早有旺长风险的麦田及</span><span style="font-family: 仿宋">稠苗麦田</span><span style="font-family: 仿宋;letter-spacing: 0">，应适当推迟冬灌或不进行冬灌、不追肥。</span><span style="font-family: 仿宋">对于假旺苗麦田，结合墒情实际，浇灌越冬水并追施速效磷肥，促根增蘖，控大（蘖）促小（蘖），促根生长，促苗转化升级。</span></span></section></section></section></section></section></section></section><p></p><section><section style="text-align: center;text-indent: 2em;line-height: 1.5em">供稿 | 农技中心</section></section><p></p><p style="white-space: normal;"><br/></p></section></section></section></section><section><section style="width: 5px; 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