| 摘要: |
| 本试验是利用15N 示踪技术通过田间微区研究了水稻在不同丰产途径的 N 肥利用问题。在所选择的各处理中,以深层施肥法最好,它不仅产量最高,肥料利用率也高。而且土壤中保留的肥料 N 也多,肥料 N 的损失最少。所以是一种比较经济的施肥方法。 |
| 关键词: 深层施肥 示踪技术 施肥方法 处理 水稻 经济的 丰产 施肥措施 施肥方案 肥料利用率 |
| DOI： |
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| 基金项目: |
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| STUDIES ON UTILIZATION OF NITROGEN FERTILIZER OF RICE DIFFERENT PATH OF HIGH YIELD BY USING ~(15)N TRACER |
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| Abstract: |
| The problem of nitrogen fertilizer utilization of rice in different pa- th of high yield was studied by using ~(15)N tracer in farm micro-plot. The plan of deep applyiug fertilizer is best from among four applying fertilizer plans.It not only gave highest yield but also gave higher utili zation rate of nitrogen fertilizer,immobile nitrogen in soil is the more and lose of nitrogen fertilizer is the least,so that it is a more economical plan of applying fertilizer. |
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