三峡重庆库区施氮水平对塔罗科血橙树体养分、产量品质及土壤理化性质的影响
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Effects of Nitrogen Application Levels on Nutrient, Yield and Quality of Tarocco Blood Orange and Soil Physicochemical Properties in the Three Gorges Area of Chongqing
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图7. 施氮对不同土层硝态氮含量的影响 |
Fig. 7. Effects of nitrogen application on NO- 3-N content in different soil layers |
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