小麦早春防冻四招--杨远锋的博客

小麦早春防冻四招

[ 2011-1-11 10:32:00 | By: 杨远锋 ]

划锄在土壤返浆时进行顶凌划锄，可以松土、保墒、增温、除草，增强麦苗的御寒能力。不论弱苗、旺苗还是壮苗，都要在返青期间抓紧划锄；对于有旺长趋势的麦田，还可以适当深锄，以抑制春季分蘖。
    镇压早春对麦田镇压，可以粉碎坷垃，弥合裂缝，使麦根与土壤密接，防止冷空气侵入而伤害麦苗。同时，镇压还具有提墒作用，可以增加土壤表层的含水量，有利于缓和低温冷害。
    施肥小麦早春施肥，可以弥补冬季地力消耗，增加养分积累，促进麦苗返青生长，抗御或减轻早春冻害，尤其在冬季气温高、麦苗持续生长、地力消耗大的年份，早春施肥尤为重要。小麦早春施肥，应抓住土壤刚刚化冻返浆的有利时机，借墒开沟深施；一般不应浇水，以免降低地温，影响麦苗生长。
    喷药在小麦返青至起身期，每亩喷洒 200ppm多效唑溶液 30至40公斤，可抑制麦苗生长，增强抗寒能力。

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原创

[ 2016-9-6 17:19:27 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:53:12 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:30:33 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-14 18:19:11 | By: xcgln(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-20 12:50:02 | By: mvkor(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-22 19:16:15 | By: uqfil(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2017-2-18 16:42:06 | By: eimqu(游客) ]

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