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- Effect of Irrigation and Precipitation on Soil Nitrate Nitrogen Accumulation 灌溉与降水对土壤NO_3~--N累积的影响
- Effects of different fertilizer application countermeasures on the soil nitrate nitrogen accumulation in dryland maize 不同施肥措施对旱地玉米土壤硝态氮累积的影响
- Effects of KNO3 spray on nitrate reductase activity (NRA) and nitrogen accumulation were studied in Pyrus pyrifolia cv. Niitaka seedlings grown in pots. 在盆栽条件下,研究了喷施KNO3对新高梨实生苗硝酸还原酶活性(NRA)和氮素积累的影响。
- 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。
- Accumulation of nitrate nitrogen 硝态氮累积
- 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。
- Nitrogen accumulation by non-nodulated soybean (Table 3) measures the amount of mineral N available in the soil. 不结瘤大豆积累的氮素(表3)可以测算出土壤中有效矿质氮的总量。
- 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。
- 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 results showed that leaf nitrogen accumulation was exponentially related to leaf SPAD values and linearly related to canopy spectral reflectance. 结果表明,小麦抽穗后叶片氮积累量也叶片SPAD值、冠层反射光谱分别呈显著的指数和线性相关;
- 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;
- Total nitrogen accumulation amount of CMS lines was distinctly higher than their homotypic lines (P<0.05), with more nitrogen distributed to stalk and grain in CMS lines. CMS玉米氮素积累总量高于其同型可育系(P<0.;05),成熟期氮素在茎秆和籽粒中分配较多;
- 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。
- The results indicated that the rice model and nitrogen modules can predicted the actual rice growth and nitrogen accumulation and distribution dynamics in two rice varieties. 但总体来看,该模型不仅能较准确地模拟水稻生长动态,而且可以模拟水稻氮吸收和积累的行为动态。
- 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 relation of NRA (NRactivity) and nitrogen accumulation of leaves in each growth stage was studied on the two different protein content wheat varieties, Lumai 5 and Changle 5. 摘要以鲁麦5号和昌乐5号两种不同蛋白质含量小麦品种为材料,研究了各生育期叶片NRA与氮素积累的关系。
- 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。
- Therefore, soil inorganic nitrogen accumulation was increased significantly by N application, but was significantly reduced by legume/cereal intercropping. 因此,施氮肥显著增加土壤无机氮的累积,而豆科/禾本科间作减少了土壤无机氮的残留。
- Pot and water culture experiments were conducted to study the regulation effects of nitrate nitrogen on chromium toxicity to Brassica campestris L. 通过盆栽和水培试验,探讨了硝态氮对小白菜铬污染毒性的调控作用。