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| 干旱条件下黑土农田水分特征研究 | |
| 引用本文： | 邹文秀,韩晓增,王守宇,李良皓.干旱条件下黑土农田水分特征研究[J].中国生态农业学报,2009,17(4):677-680. |
| 作者姓名： | 邹文秀 韩晓增 王守宇 李良皓 |
| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,哈尔滨,150081;中国科学院研究生院,北京,100049 2. 中国科学院东北地理与农业生态研究所,哈尔滨,150081 3. 东北农业大学,哈尔滨,150030 |
| 基金项目： | 国家科技支撑计划，国家重点基础研究发展规划(973计划)，中国科学院知识创新工程项目 |
| 摘 要： | 在中国科学院海伦农田生态系统国家野外科学观测研究站, 应用长期定位试验研究了干旱年份不同施肥处理下的黑土农田水分状况.结果表明:在干旱年份, 大气降水不能满足玉米对水分的需求, 土壤利用"土壤水库"中的水分进行补给, 在玉米全生育期土壤供水量占玉米耗水量的比例为22.23%～25.99%;肥料的施用能够调节土壤的供水能力, 表现为化肥+有机肥处理>化肥处理>无肥处理;玉米的耗水量和耗水强度也表现出相同趋势;肥料的施用, 特别是化肥和有机肥配合施用能够提高玉米的水分利用效率. |
| 关 键 词： | 干旱年 黑土 作物耗水 土壤供水 施肥 |
| 收稿时间： | 2008/6/30 0:00:00 |
| 修稿时间： | 2008/11/1 0:00:00 |
Black soil field water characteristics in dry years |
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| ZOU Wen-Xiu,HAN Xiao-Zeng,WANG Shou-Yu and LI Liang-Hao.Black soil field water characteristics in dry years[J].Chinese Journal of Eco-Agriculture,2009,17(4):677-680. | |
| Authors: | ZOU Wen-Xiu HAN Xiao-Zeng WANG Shou-Yu and LI Liang-Hao |
| Institution: | 1. Northeast Institute of Geography and Agro-ecology, Chinese Academy of Sciences, Harbin 150081, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Northeast Institute of Geography and Agro-ecology, Chinese Academy of Sciences, Harbin 150081, China;Northeast Institute of Geography and Agro-ecology, Chinese Academy of Sciences, Harbin 150081, China;Northeast Agricultural University, Harbin 150030, China |
| Abstract: | An experiment was carried out to study the effect of different fertilization treatments on soil moisture in black soils during relatively dry years. The study was based on long-term field experiment in Hailun Experimental Station of Agricultural Ecology, Chinese Academy of Sciences. The results show that precipitation is below corn water requirement in dry years. The water deficit is met by soil moisture reserve. The ratio of soil water supply to maize water consumption is 22.23% ~ 25.99% for the entire maize growth season. The capacity of soil water supply is regulated by fertilization. The order of effect of treatments on soil moisture is chemical fertilizer plus organic manure (F3)> chemical fertilizer (F2)>no fertilizer (F1). A similar trend is observed for the amount and rate of maize water consumption. Fertilization enhances water use efficiency of corn, especially chemical fertilizer plus organic manure treatment. |
| Keywords: | Dry year Black soil Water consumption of crop Soil water supply Fertilization |
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