寒地水稻節水控制灌溉技術發布時間:2018-07-02

技術編號:HJS-2018-07021278

水稻種植寒地種植節水控水

此技術適用于東北三省寒地水稻種植區

技術行業:生產|加工|制造

技術來源:大專院校

技術地區:

技術階段:中試

技術方現狀:缺市場渠道

技術應用領域:環境工程 生農醫藥

價格區間:

交付方式:整體方案

合作方式: 技術入股 其他 

技術詳情
該技術以不同生育期調虧型根層土壤水分下限閾值作為控制指標替代常規水層管理指標,確定灌水時間和灌水定額。灌水上限不超過30mm, 下限視各生育期需水敏感程度,按土壤飽和含水率的60-90%進行調虧組合,蓄雨深不超過50mm。該技術集成各灌溉因子提出了 10個灌溉 分區的技術組合模式。

與常規灌溉相比,灌溉凈定額下降33%,畝節 水150?200m3,畝增產5-10%,病株率降低43%,病葉率降低42%, 桿莖壁厚提高30%,莖節充實度提高20%以上,減少返青-分蘗期灌水 1?2次,減少稻田甲烷等溫室氣體排放29.6%。同時,水稻食味、外 觀和加工品質指標均好于常灌水稻。
技術優勢

在黑龍江省水稻灌區推廣應用,2007年至2014年,累計推廣面積2376 萬畝。

適用對象

東北三省寒地水稻種植區

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