| 不同施钾处理对高产小麦地上部和土壤中钾素积累动态的影响 |
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| 作者姓名： | zk_@yahoo.com.cn |
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| 作者单位： | 信阳农业高等专科学校 河南信阳464000 |
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| 摘 要： | 采用大田试验和室内分析的方法研究了不同施钾处理下高产小麦生育期间植株地上部钾素积累特点和土壤中钾素动态变化特点。结果表明,在小麦生育期间,钾素积累总体趋势是:前期积累缓慢上升,中期达到高峰,后期又有所下降,不同施钾水平下对钾素积累又有所不同。土壤中速效钾和缓效钾在小麦整个生育期间,在不同施钾处理下,由于受施肥、作物吸收、温度、降水及土壤水分运动的影响变化动态比较复杂。具体表现为:在不同施钾处理下,土壤中的速效钾和缓效钾在小麦生长的整个过程中,总是以K3保持最高水平,K2次之,K1最少。
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| 关 键 词： | 高产小麦 不同施钾处理 土壤钾素 吸收动态 |
Effects of Different Treatment of Potassium on High Yield of Wheat on Ground Part and Dynamics of Potassium in Soil |
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| Authors: | Zhang Kai Lei Zhenshan Yan Yong |
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| Institution: | Xinyang Agricultural College, Xinyang Henan 464000 |
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| Abstract: | The paper adopted the farmland experiments with different indoor analytical method of potassium to high yield of wheat and soils that the wheat grows in the period in the potass accumulated plant dynamics state variety characteristics.The result expressed that the different period in the wheat, total trend of potassium accumulation is that before slow-moving rising, the middle attained the high peak,then descend , different level had the different dissimilarity to the plant.In the soil the accumulation of available potassiume and slow released potassium in the whole period in the wheat is complicated because of the fertilizer, the farm crop assimilation, the temperature, the precipitation and the state of the water in the soil.The performance is that under the different treatment of potassium in the soil with available potassiume and slow released potassium in the whole process that wheat grow, always keeping the tallest level with the K3, then K2, the K1 is minimal. |
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| Keywords: | High yield of wheat Different treatment of potassium Soil potassium Dynamics of potassium |
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