| 摘要: |
| 在防雨棚控制条件下，采用最优设计和盆栽试验，研究水分和肥料对冬小麦、春玉米、夏谷子的产量及生物学产量效应指数，作为评判旱地水肥关系的量化指标。结果表明，冬小麦、春玉米的水肥效应是水分大于肥料，谷子则是肥料大于水分，并提出了作物的肥水需要量。 |
| 关键词: 水肥效应，旱地作物，渭北旱塬 |
| DOI： |
| 分类号:S158 |
| 基金项目:国家“八五”攻关项目的一部分 |
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| Crop Response Index to Water and Fertilizer in the Western Regions of Weibei Dryland |
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Xu Fuli 1 Wang Weiling 2 Zhang Jitao 2,Xu Fuli 1 Wang Weiling 2 Zhang Jitao 2,Xu Fuli 1 Wang Weiling 2 Zhang Jitao 2
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| Abstract: |
| The crop yields and biological response index of winter wheat, spring corn and summer millet have been studied under the condition of rain proof greenhouse with optimum design and pot experiment, which are used as the quantification index for the determination of the relation between water and fertilizer in dryfarming. The results show that the water effects on winter wheat and spring corn is greater than that of fertilizer, while on millet, fertilizer effects are greater. Also, the paper puts forward the demand quantity of crops for water and fertilizer. |
| Key words: water and fertilizer effect,dryland crops,Weibei Dryland |
