| 玉米苗期肥水耦合效应研究 |
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| 引用本文： | 李絮花,杨守祥.玉米苗期肥水耦合效应研究[J].山东农业大学学报(自然科学版),2002,33(3):273-280. |
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| 作者姓名： | 李絮花 杨守祥 |
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| 作者单位： | 山东农业大学,资环学院,山东,泰安,271018 |
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| 摘 要： | 本文系统研究了不同土壤水分条件下施肥对玉米苗期生长的影响。结果表明：土壤水分供应不足时，施用氮肥可显著抑制玉米苗期的生长，而磷、钾肥特别是钾肥的施用则能促进玉米的生长、提高水分的利用效率和抗旱能力、达到以肥调水的目的；只有适宜土壤水分条件，才能充分发挥氮肥的肥效；施用钾肥可提高玉米的抗涝能力。施用氮肥能提高玉米体内的氮素含量和吸收量，磷、钾肥也能促进玉米对氮素的吸收，并且降低土壤水分状况对氮素吸收的影响，土壤相对含水量较低时，氮、钾肥施用可显著促进玉米对磷素的吸收，含水量较高时施氮则抑制磷素的吸收。在土壤水分缺乏的条件下，施用氮、磷肥能抑制玉米苗期对钾素的吸收，施用钾肥促进玉米对钾素的吸收、提高体内的含钾量。
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| 关 键 词： | 玉米 苗期 肥水耦合效应 抗旱能力 抗涝能力 |
| 文章编号： | 1000-2324(2002)03-0273-08 |
| 修稿时间： | 2002年3月5日 |
INTERACTIONS OF FERTILIZER WITH SOIL WATER CONDITION AFFECT THE GROWTH OF CORN SEEDLINGS |
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| LI Xu-hua,YANG Shou-xiang.INTERACTIONS OF FERTILIZER WITH SOIL WATER CONDITION AFFECT THE GROWTH OF CORN SEEDLINGS[J].Journal of Shandong Agricultural University,2002,33(3):273-280. |
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| Authors: | LI Xu-hua YANG Shou-xiang |
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| Abstract: | The effects of fertilizer and soil water conditions were studied sysematicaully.The result show that in poor soil conditions,the application of N can signiticantly reduced the growth of corn seedlings and the application of P and K can greatly increase the growth of corn seedlings and also enhance the water use efficienoy and drought resistance.The results also indicate that the application of K and N are aso good for water logging condition and then K and N fortilizers were applied in poor soil water condition,the amount of p uptake by corn seedllngs was also increased;however this K uptake amount was reduced when the soil water is rich,if should be concluded that the application of N and P in poor soil condition can depress the uptake of K by corn seedings.The application of K can increase the aceumulation to K in the corn seedling plants. |
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| Keywords: | interaction of soil water and fertilizers Corn drought resistance waterlogging resistance |
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