[1]赵克学,陈国良,郭保安,等.宁南山区旱地胡麻生产力与水分利用特征[J].水土保持研究,1996,3(01):76-80,98.
　Zhao Kexue,Chen Guoliang,Guo Baoan,et al.Study on Dryland Flax’s Productivity and its Characters of Water Use in Southern Ningxia Hilly Area[J].Research of Soil and Water Conservation,1996,3(01):76-80,98.
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宁南山区旱地胡麻生产力与水分利用特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 3 期数: 1996年01期 页码: 76-80,98 栏目: 出版日期: 1900-01-01
Title:
Study on Dryland Flax’s Productivity and its Characters of Water Use in Southern Ningxia Hilly Area
作者:
赵克学1, 陈国良2, 郭保安2, 穆兴民2, 徐学选2
1. 宁夏固原县科委 宁夏固原 756000;
2. 中国科学院、水利部水土保持研究所 陕西杨陵 712100
Author(s):
Zhao Kexue1, Chen Guoliang2, Guo Baoan2, Mu Xingmin2, Xu Xuexuan2
1. Cuyuan county’s committee of Science and Technologys, Guyuan, Ningxia 756000;
2. Institute of Soil and Whier Conservation, the Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, 712100
关键词:
胡麻; 生产力; 水分利用率
Keywords:
flax; produtivity; water use efficiency (WUE)
摘要:
通过1990～1992年三个年度对宁南旱地胡麻生产力与水分利用特证试验分析，结果表明：该区旱地胡麻生产旱作潜力为104kg左右，水分生产率最高为0.31kg/mm，耗水量280～320mm.耗水上层深度平均1.9m，最大2.8m，对土壤有效水的利用率为42.8%；在目前生产条件下，施肥量在0～15kg范围内，胡麻的产量随施肥量的增加而上升，在胡麻一生耗水中，生育期降雨占56%，土壤供水占44%，耗水层次基本上在2m上层以内，占总耗水的94.4%，从不同的阶段耗水看，前期（播种-纵形）占全生育期耗水14.9%，中期（纵形-终花）占58.3%.后期（终花-成熟）占26.8%，最大耗水强度出现在现蕾-终花，日耗水平均为4.74mm，从整个水分供需平衡看，中期水分亏缺严重，占该期需水量的68.4%.
Abstract:
Through analysisng three year’s data of flax’s productivity and its water use characters.the results show: The flax’s yield could reach at 104kg/mu in normal rainstyle of year, and its WUE was 0.31kg/mm, evaporation and plant transpiration (ET) ranged 280-320mm.The mean depth of water consulmption was 1.9m, the highest was 2.8m.its soil water use efficiency was 42.8%.At present condition, by fertilized 0-15kg/mu, flax yield would be increased by added fertilizer.In flax’s life, the rainwater account for 56% of total ET.soil water by 44%, which 94.4% was from within 0-2m depth.The total ET consist of 14.9% in former stage, 58.3% in middle stage, 26.8% in later stage.The highest ET was in the filling stage which was 4.74mm/d.From water balance, the middle stage would be serious by water lack, the balance would be 68.4% of total ET.

参考文献/References:

[1] 中国科学院黄土高原综合考察队农林牧课题组编:黄土高原地区287县(市、旗)基本情况数据集(1985年), 1988
[2] 穆兴民等.黄土区旱地春小麦农田水分生态特征与改善途径.中科院、水利部西北水土保持研究所集刊, 1990, (3)55-56
[3] 贾恒义等.上黄试区土地类型的土壤组合与不同利用方式的土壤养分变化。中科院、水利部西北水土保持研究所集刊, 1990, (3), P66
[4] 天津市南郊区西泥沽公社农科站、天津市南郊区科学技术委员会.怎样种胡麻.天津科学技术出版社, 1981, 35

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备注/Memo

收稿日期:1995-11-10;改回日期:。

更新日期/Last Update: 1900-01-01