【摘 要】
：
为明确旱地小麦通过休闲期耕作实现蓄水增产、优质的技术途径,2009-2015年在山西闻喜县进行了休闲期深翻、深松或无耕作的田间试验,以明确不同耕作措施对土壤水分变化、小麦植株氮素积累和运转以及产量和品质形成的影响.结果如下：(1)休闲期耕作有利于蓄积休闲期降水,提高底墒,欠水年、平水年休闲期深翻分别提高播种前0-300 cm土壤蓄水量26.98％,15.67％,较深松更有利于蓄积休闲期降水,且欠水
【机 构】
：
山西农业大学农学院,山西太谷030801
【出 处】
：
第十七次全国小麦栽培科学学术研讨会
论文部分内容阅读
为明确旱地小麦通过休闲期耕作实现蓄水增产、优质的技术途径,2009-2015年在山西闻喜县进行了休闲期深翻、深松或无耕作的田间试验,以明确不同耕作措施对土壤水分变化、小麦植株氮素积累和运转以及产量和品质形成的影响.结果如下：(1)休闲期耕作有利于蓄积休闲期降水,提高底墒,欠水年、平水年休闲期深翻分别提高播种前0-300 cm土壤蓄水量26.98％,15.67％,较深松更有利于蓄积休闲期降水,且欠水年蓄水保墒效果可延续整个生育时期,而丰水年,休闲期深松效果更佳,可提高12.25％.(2)休闲期耕作有利于植株氮素吸收积累,欠水年、平水年休闲期深翻更有利于氮素吸收,可延续至开花期,且欠水年效果更佳；丰水年休闲期深松更有利于氮素吸收,可延续至生育后期.
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