| 张 继, 翟丙年，贾 亮，强晓敏，张 洋，王朝辉.不同施氮水平下水分调控对冬小麦产量及其构成因素的影响[J].麦类作物学报,2011,31(3):524 |
| 不同施氮水平下水分调控对冬小麦产量及其构成因素的影响 |
| Effect of Water Regulation on the Yield and Yield Component of Winter Wheat under Different Nitrogen Levels |
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| DOI：10.7606/j.issn.1009-1041.2011.03.025 |
| 中文关键词: 冬小麦 施氮 补充灌溉 产量及其构成因素 |
| 英文关键词:Winter wheat N level Supplemental irrigation Yield and yield component |
| 基金项目:国家小麦现代产业技术体系建设专项(Z225020803)；西北农林科技大学“创新团队建设计划”项目（Z111021005）；国家支撑计划项目（2008BADA4B09）；“青年学术骨干”人才基金专项 (Z111020612)。 |
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| 中文摘要: |
| 为给西北地区冬小麦不同施氮水平下水分调控提供理论依据，于2009-2010年在西北农林科技大学试验基地进行了裂区试验，研究了三个施氮水平（分别为0、150、225 kg N·hm-2，用N0、N150和N225表示)下水分调控（不灌水不覆盖CK、越冬期漫灌WF、越冬期补灌WS、覆盖+越冬期补灌MWS、覆盖+拔节期补灌MJS和拔节期补灌JS）对旱地冬小麦产量及构成因素的影响。结果表明，施氮（N150和N225）较不施氮（N0）具有显著的增产效应，但N225与N150差异不显著，施氮增产原因主要是有效穗数和穗粒数显著增加。在N0、N150水平下，水分调控处理中CK处理的产量最低，且与MJS和JS处理差异显著；N225水平下各水分调控处理间产量差异不显著，MJS和JS处理的有效穗数和穗粒数均显著高于CK处理。综合来看， 本试验条件下， MJS是最适的水分调控措施。 |
| 英文摘要: |
| A field trial with nitrogen level and cultivation method was carried out for investigating the effect of water regulation on the winter wheat yield under different nitrogen level in 2009-2010 at the experimental station of northwest A&F university. The result showed that, under three fertilizer levels (0, 150 and 225 N kg·hm-2 represented as N0, N150 and N225, respectively), the yield of N150 treatment was 7 116 kg·hm-2 by 194% over N0 treatment, there was no significant increase between N225 and N150 treatments. Effective spikes and grains per spike in N150 and N225 treatments were significant higher than that of N0. Water regulation treatment included no irrigation and straw mulch,overwintering irrigation (80 mm),overwintering irrigation (40 mm), straw mulch+ overwintering irrigation (40 mm), Jointing irrigation (40 mm) and straw mulch+ jointing irrigation (40 mm), represented as CK, WF, WS, MWS, JS and MJS, respectively. The yields in JS, MJS treatment were significantly higher than that of CK at N0, N150 levels, there was no significant difference at N225 level for yield under those treatments. Effective spikes and grains per spike in JS, MJS treatment were significantly higher than that of CK. In short, the yield of JS ［jointing irrigation (40 mm)］ and MJS ［straw mulch+ jointing irrigation (40 mm)］ treatments were the best under 3 fertility levels. Under the experimental conditions, MJS ［straw mulch+jointing irrigation （40 mm)］ was the best water regulation treatment. |
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