| 摘要: |
| 本文通过田间试验研究了二苯胺法快速诊断四川盆地小麦氮素营养状况的适用性，并采用该方法对农户进行了田间速测，指导民追肥。 |
| 关键词: 氮 营养诊断 小麦 四川盆地 施肥 |
| DOI： |
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| 基金项目: |
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| The Quick Tissue Testing for Diagnosis of Nitrogen Nutritional Status of Wheat and Its Application in Sichuan Basin |
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| Abstract: |
| Based on field trials and on-farm investitation, this study deals with the adaptability of diphenylamine method to quickly diagnose wheat nitrogen nutritional status and its application in nitrogen fertilization in Sichuan Basin. The results suggests that: (1) this method can be used to diagnose the wheat nitrogen nutritional status quickly and precisely; (2) according to field quick testing results from many investigated sites, nitrogen deficiency of wheat in many soils of Sichuan Basin was a common phenomenon and serious problem for agricultural production, which is mainly due to the shortage of nitrogen fertilizer supply and the unreasonable use of fertilizer; (3) and significant increase of wheat yield were obtained by the application of quick testing method in guiding the utilization of nitrogen fertilizer at the investigated regions. |
| Key words: Nitrogen,Nutrient diagnosis,Wheat,Nitrogen deficiency,Sichuan Basin, |
