| 耕作方式与施肥对旱农区粮饲兼用玉米耗水特性和干物质积累的影响 |
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| 引用本文： | 张明君,李玲玲,谢军红,任金虎,Lamptey Shirley.耕作方式与施肥对旱农区粮饲兼用玉米耗水特性和干物质积累的影响[J].干旱地区农业研究,2018,36(1):179-185. |
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| 作者姓名： | 张明君 李玲玲 谢军红 任金虎 Lamptey Shirley |
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| 作者单位： | 甘肃省干旱生境作物学重点实验室甘肃农业大学农学院;延安市农业科学研究所; |
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| 基金项目： | 973计划项目(2012CB722902)；国家科技支撑计划项目(2015BAD22B04-3) |
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| 摘 要： | 采用大田试验,在全膜双垄沟播技术的基础上,比较研究了4种耕作方式(T1:传统翻耕,T2:旋耕,T3:深松耕,T4:免耕)搭配2种施氮水平(N2:施纯氮200 kg·hm~(-2),N3:施纯氮300 kg·hm~(-2))下对玉米耗水特性和干物质积累的影响。结果表明:与施氮量相比,耕作方式对耗水量和土壤贮水消耗量影响显著;深松耕降低了玉米播种至拔节期的阶段耗水量,提高了拔节至灌浆期的耗水量及其占总耗水量的比例;播种至拔节期深松耕较传统翻耕0~30 cm土层的贮水消耗量减少了35.3%,拔节至开花期和开花至灌浆期,30~110 cm土层贮水消耗量增加了54.2%和20.5%;玉米不同生育时期各器官的干物质积累量都表现为深松耕+施纯氮300 kg·hm~(-2)最高,是生物产量和籽粒产量最高的处理,深松耕+施纯氮300 kg·hm~(-2)和深松耕+施纯氮200 kg·hm~(-2)处理间差异不显著;免耕+施纯氮200 kg·hm~(-2)处理的水分利用效率最高,与深松耕+施纯氮300 kg·hm~(-2)处理相比差异不显著。在综合考虑高产以及对水分和肥料的高效利用的条件下,基于全膜双垄沟播技术,深松耕+施纯氮200 kg·hm~(-2)是陇中旱农区适宜的生产方式。
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| 关 键 词： | 耕作方式 全膜双垄沟播 深松耕 耗水量 干物质积累量 |
Effects of tillage and nitrogen on water consumption and dry matter accumulation for arid region grain and forage maize |
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| ZHANG Ming-jun,LI Ling-ling,XIE Jun-hong,REN Jin-hu,Lamptey Shirley.Effects of tillage and nitrogen on water consumption and dry matter accumulation for arid region grain and forage maize[J].Agricultural Research in the Arid Areas,2018,36(1):179-185. |
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| Authors: | ZHANG Ming-jun LI Ling-ling XIE Jun-hong REN Jin-hu Lamptey Shirley |
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| Institution: | Gansu Provincial Laboratory of Aridland Crop Sciences; Faculty of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China; Yan''an Institute of Agricultural Sciences, Yan''an, Shaanxi 716000, China,Gansu Provincial Laboratory of Aridland Crop Sciences; Faculty of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China,Gansu Provincial Laboratory of Aridland Crop Sciences; Faculty of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China,Gansu Provincial Laboratory of Aridland Crop Sciences; Faculty of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China and Gansu Provincial Laboratory of Aridland Crop Sciences; Faculty of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: | |
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| Keywords: | tillage method Whole Field Surface Plastic Mulching and Double Ridge-Furrow planting sub-soiling tillage water consumption amounts dry matter amounts |
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