[1]董大学,李玉山.干旱年型下渭北塬地冬小麦产量潜势及水肥效应研究[J].水土保持研究,1989,(01):124-129.
Dong Daxue,Li Yushan.Feild Study on Yield Potentiality of Winter Wheat and Effect of Water and Fertilizer[J].Research of Soil and Water Conservation,1989,(01):124-129.
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Dong Daxue,Li Yushan.Feild Study on Yield Potentiality of Winter Wheat and Effect of Water and Fertilizer[J].Research of Soil and Water Conservation,1989,(01):124-129.
干旱年型下渭北塬地冬小麦产量潜势及水肥效应研究
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1989年01期
页码:
124-129
栏目:
出版日期:
1900-01-01
- Title:
- Feild Study on Yield Potentiality of Winter Wheat and Effect of Water and Fertilizer
- 摘要:
- 在田间用常规土壤湿度系列测定及人工灌溉方法有效地控制土壤湿度，从而造成冬小麦各生育期内土壤“充分供水”、“适水”、“旱作”3种水分状况；同时，设“高肥”、“低肥”处理。通过产量方差性分析，潜势系数求算等步骤，得出渭北早塬水肥因子潜势产量。结果表明，在8年一遇的严重干旱年份下，本区冬小麦水肥产量潜势系数分别为kdp=0.544，kf=0.670。肥力的增产作用除表现为本身对冬小麦的直接营养作用外，还表现为肥力提高后可增强冬小麦对土壤水分的充分和用。灌浆期土壤水分状况对形成产量至关重要。试验表明，该期适宜土壤
- Abstract:
- The experiments reported here were done at Changwu county. Soil water was controled by irrigation, three water-states, i. e. full water condition, suitable supplying water and rain fed were made all growing stage of winter wheat, At the same time, we design high fertilizer and low fertilizer handle as well. As a results, the potentiality coefficient, potentiality of winter yeild and effect of water and fertilizer was obtained at Weibei arid plateau, The results shoves that water and fertilizer potentiality coefficients are Kdp = 0.544 and Kf=0.673, respectively, in the dry year which occurs once in eight years, the fertilizer increased production effect not only for direct nutrition effect, but also increasing utility of soil water by winter wheat. Especially, the experiment shoves that a approciate soil water is 14-17% when winter wheat is in the milk stage.
参考文献/References:
[1] 李玉山:"渭北旱想土壤水分动态规律及其与小麦生长的关系",《陕西农业科学》1982年2期
[2] 朱自玺、牛现增、侯建新:"麦田水量平衡的动态分析",《国际农业气象学术讨论会论文集》1987年,34-36页
[3] 徐萌:"无机营养和水分胁迫对小麦生长发育和产量形成的影响",《西北水土保持研究所集刊》1988年第8集,65-72页
更新日期/Last Update:
1900-01-01