| 黑土区水肥耦合对大豆产量的影响 |
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| 引用本文： | 乔云发,韩晓增,苗淑杰,李艳华.黑土区水肥耦合对大豆产量的影响[J].大豆通报,2007(1):25-27. |
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| 作者姓名： | 乔云发 韩晓增 苗淑杰 李艳华 |
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| 作者单位： | 中国科学院东北地理与农业生态研究所,哈尔滨150081 |
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| 基金项目： | 黑龙江省自然科学基金
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黑龙江省科技攻关项目 |
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| 摘 要： | 通过盆栽试验条件,设置不同灌水和施钾处理,研究水钾耦合对大豆产量的影响,试验结果分析表明:水分对大豆产量影响大于钾肥的影响.大豆产量很大程度上依赖于水分供应的多少,在水分充足时增施钾肥可以提高大豆产量和株高,水分的增产十分显著,水分对产量影响增产最大为25.6%,但水分过高对大豆生产有毒害作用.随着水分和施肥量的增加,产量增加,在相对含水量为60%和肥料F3(N:0.04 g/kg、P2O5:0.02 g/kg、K2O 0.30 g/kg)情况下,产量最高(17.7 g/株),比无钾肥干旱增产33.7%.
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| 关 键 词： | 水肥耦合 大豆 钾 |
| 文章编号： | 1009-2765（2007）01-0025-03 |
| 收稿时间： | 2006-04-04 |
| 修稿时间： | 2006-05-19 |
Effects of Water and Fertilizer Coupling on Yield of Soybean at Black Soil Area |
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| Qiao Yunfa,Hah Xiaozeng,Miao Shujie,Li Yanhua.Effects of Water and Fertilizer Coupling on Yield of Soybean at Black Soil Area[J].Soybean Bulletin,2007(1):25-27. |
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| Authors: | Qiao Yunfa Hah Xiaozeng Miao Shujie Li Yanhua |
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| Institution: | Northeast Institute of Geography and Agroecology, CAS, Harbin 150081 |
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| Abstract: | Pot experiments were conducted to determine the effects of water and potassium(K) fertilizer coupling on yield of soybean by designing different water and K fertilizer treatments.The results showed that the yield of soybean was strongly dependent on water supply.Sufficient water supply significantly increased the yield and height of soybean at the highest yield-increasing rate of 25.6% when K fertilizer application was increased,however,excessive water supply negatively influenced the yield of soybean.The yield of soybean increased with increasing water and fertilizers supply.The highest yield was 35.3 g per pot and increased at a rate of 33.7% compared to the treatment without fertilizer and water supply in the case of relative water content 60% and fertilizer treatments with N 0.04 g/kg soil,P2O5 0.02 g/kg soil and K2O 0.30 g/kg soil. |
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| Keywords: | Water-fertilizer coupling Soybean Potassium |
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