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- Effect of nitrogen fertilizer on yield and nitrate content in Brassica oleracea L. Var. Capitata L. 氮肥对结球甘蓝产量与硝酸盐含量的影响。
- Nitrogen fertilizer sources subject to ammonia volatilization losses are urea, urea-ammonium nitrate solutions, and anhydrous ammonia. 容易形成氨挥发损失的氮肥品种有：尿素、尿素-硝酸铵溶液和液氨。
- The nitrogen fertilizer losses in paddy field involve nitrification-denitrification, ammonia volatilization,nitrate leaching and runoff. 稻田中氮素损失途径主要有氨挥发、硝化-反硝化、淋洗和径流,其中氨挥发是氮素损失的主要途径。
- Effect of Nitrogen Fertilization on Nitrate Nitrogen Contents and Nitrate Reductase Activities in the Plants of Different Winter Wheat Varieties 施氮对不同品种冬小麦植株硝态氮和硝酸还原酶活性的影响
- What is the cost of using nitrogen fertilizer on a rice crop? 水稻使用氮肥的成本是什么?
- Some commercial laboratories use periodic nitrate nitrogen tests as guides. 许多商业性的试验室已应用定期的硝态氮分析作为指导。
- Should nitrogen fertilizer be applied after injected swine manure? 如何树立种猪引入的科学理念?
- Utilization efficiency of nitrogen fertilizer and Kalium were enhanced. 促进番茄对氮和钾的吸收。
- In many plants, including most tree crops, nitrate nitrogen does not usually occur in the leaves. 在一些植物中，包括绝大多数的木本作物，硝态氮并非经常存在于叶片中。
- Nitrate nitrogen removal from ground water by autotrophic denitrification in a packed bed reactor. 固定床自养反硝化去除地下水中的硝酸盐氮。
- We got the relative compound standard indeterminacy of nitrate nitrogen content in water,8. 采用酚二磺酸分光光度法对水中硝酸盐氮进行不确定度评定。
- Anhua County Nitrogenous Fertilizer Fact. 安化县氮肥厂。
- Rhoads F M.A comparison of ammonium and nitrate nitrogen for cigar wrapper tobacco[J],Agron.J. 李智勇;刘思英;丁一;等.;氮肥种类和形态对烤烟生育及产质的影响[J]
- The same result was observed under hydroponic condition with nitrate nitrogen in which glutamate or serine was added. 水培条件下，以铵态氮或尿素等作唯一氮源时，荞麦中草酸含量远低于以硝态氮培养的；
- Blanched gourd did not show such a pattern.Low temperature storage appeared to be favorable for the control of nitrate nitrogen in veg... 低温处理有利于控制蔬菜中硝态氮的含量，但对可溶性总糖含量的影响却较小。
- Mechanisms of Nitrogen Fertilizer Suppressing Atmospheric Methane Oxidation by Methanotrophs in Soils. 氮肥对土壤氧化大气甲烷影响的机制。
- In order to establish an easy,rapid and practical method of determination of nitrate nitrogen in quality controlled water,thymol was applied. 用麝香草酚法测定水中硝酸盐氮,并与标准方法酚二磺酸法进行对照,所测结果经统计学处理,两种方法无显著性差异,精密度、准确度等各项指标符合分析标准。
- The effect of potassium increased with increasing yield and nitrogen fertilizer. 钾肥效应随着产量和施氮量提高而增大。
- The results indicated that adding DCD significantly increased ammonium content and decreased nitrate nitrogen content at the same time. 结果表明,添加DCD明显提高了相应处理的铵态氮含量,降低了硝态氮含量。
- The total phosphorus requirement is relative to the potential of soil phosphorus and nitrogen fertilizer application. 总磷需求量与土壤磷潜力和施用氮肥有关。
