| 盐渍化土壤水肥耦合对向日葵苗期生长影响的试验 |
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| 引用本文： | 薛铸,史海滨,郭云,张义强,闫浩芳,李亮.盐渍化土壤水肥耦合对向日葵苗期生长影响的试验[J].农业工程学报,2007,23(3):91-94. |
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| 作者姓名： | 薛铸 史海滨 郭云 张义强 闫浩芳 李亮 |
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| 作者单位： | 1. 内蒙古农业大学水利与土木工程学院,呼和浩特,010018
2. 内蒙古河套灌区解放闸管理局,杭锦后旗,015400 |
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| 摘 要： | 采用盆栽试验定量分析方法，模拟研究了不同盐分胁迫下，水肥对向日葵苗期冠层形态特征、干物质量及其分配的影响，揭示了盐渍化土壤水肥耦合机制。结果表明：水盐胁迫使向日葵的生长发育显著受阻，苗期明显滞后、株高、茎粗及叶片数显著减少，干物质量下降；在养分供应到一定程度上有助于缓解水分胁迫对向日葵生长发育产生的影响，而且养分供应不足时水分的增产作用会受到影响。据试验结果初步确定水盐(中度含盐处理)双重胁迫条件下的水肥配合值为:灌水定额为田持的75%(中水)并配施肥300 kg/hm2(中肥)时,最大干物质量为845.1 kg/hm2。合理施肥、量水配肥是盐渍化地区节水灌溉提高作物产量的有效措施。
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| 关 键 词： | 油料向日葵 水肥耦合 水盐胁迫 干物质量 节水灌溉 |
| 文章编号： | 1002-6819(2007)3-0091-04 |
| 收稿时间： | 2006/2/16 0:00:00 |
| 修稿时间： | 2006-02-16 |
Effects of coupling of soil water and fertilizer on the growth of sunflower during its seeding period in saline soil |
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| Xue Zhu,Shi Haibin,Guo Yun,Zhang Yiqiang,Yan Haofang and Li Liang.Effects of coupling of soil water and fertilizer on the growth of sunflower during its seeding period in saline soil[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(3):91-94. |
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| Authors: | Xue Zhu Shi Haibin Guo Yun Zhang Yiqiang Yan Haofang and Li Liang |
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| Institution: | College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Huhhot 010018, China;College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Huhhot 010018, China;Administrative Bureau of Jie-fang Brake, Hetao Irrigation District of Inner Mongolia, Huangjinhou Banner 015400, China;Administrative Bureau of Jie-fang Brake, Hetao Irrigation District of Inner Mongolia, Huangjinhou Banner 015400, China;College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Huhhot 010018, China;College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Huhhot 010018, China |
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| Abstract: | According to the pot experiment and by quantitative analysis, simulation of the different water and N management patters influencing the canopy physiological shape, dry matter and different distribution of sunflower seeding stage in water-salt stress was conducted. Results showed that the development of sunflower was stunted and plant height, the quantity of leaf and the amount of dry matter were obviously decreased in water-salt stress. When the nutrient supplied reached a certain extent which would release the effect on development of sunflower, then the nutrient supplied was insufficient the effect of water increasing in yield would be influenced. The coupling effects of soil water and fertilizer on the interdependence of canopy physiological shape, dry matter and different distribution of sunflower were investigated, which discloses the high efficiency coupling principle of water and fertilizer. According to the result of preliminary experiment determination of water salt(moderate salt treatment) dual forces under which the water and fertilizer coordination value is: When irrigateing the fixed quantity to hold for the field 75%(moderate water) and matching fertilizer application 300 kg/hm2(moderate fertilization), the most going all out quality is 845.1 kg/hm2. Therefore, proper fertilization is an effective method for water saving irrigation in saline area. |
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| Keywords: | oil sunflower coupling of water and fertilizer water-salt stress dry matter water saving irrigation |
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