传统的作物氮素营养诊断以实验室常规分析为基础，费时、费力及需要有毒化学品。
Traditionally, crop nitrogen nutrition diagnosis is based on chemical analysis of plant tissues, which are labor-intensive, time-consuming and involving hazardous chemicals.
反射仪-硝酸根试纸法快捷简便，是蔬菜氮素营养诊断和蔬菜硝酸盐含量监测的理想的现场速测技术。
So the nitrate test-strip-reflectometer method could rapidly monitor the nitrate level of vegetables and soils in the field and market scene.
在南疆滴灌条件下进行氮肥大田试验，对应用土壤无机氮测试进行棉花氮素营养诊断及氮肥推荐进行了研究。
Based on field fertilizer experiment of cotton under drip irrigation in the area, cotton nitrogen diagnosis and nitrogen fertilizer recommendation with soil inorganic nitrogen quick test was st.
应用推荐