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- Difference among different nutrient formula was significant in nitrate content. 不同营养液配方间硝酸盐含量差异显著。
- Effects of NPK Ratio in Fertilization on Yield and Nitrate Content of Radish. NPK肥不同配比对萝卜产量及硝酸盐含量的影响
- 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。
- The nitrate content in turnip was reduced,while soil organic matter content in the rhizosphere was signifi... 施用有机肥料萝卜的硝酸盐含量明显下降,当季作物收获后根际土壤有机质含量明显提高。
- The nitrate content of radish, pachyrhizus, cabbage and greengrocery is much higher above the required limit. 其中白萝卜、地瓜叶、大白菜、青菜等超标严重。
- The method for the determination of the nitrate content in fresh vegetable by ultraviolet spectrophotometry is set up. 建立了紫外分光光度法测定蔬菜鲜样中硝酸盐含量的方法。
- In this paper testing of nitrate content in water with a HACH DR/5000TM Spectrophotometer is reported. 摘要采用美国HACH公司最新推出的DR/5000紫外可见分光光度计，及其专用试剂测定水中硝酸盐氮含量。
- Nitrates are used as fertilizers in agriculture. 硝酸盐在农业上用作肥料。
- Nitrate content in plant tissue was increased with the percentage of chemical nitrogen in the mixture of chemical fertilizer and AFR. 沼肥中配施化肥 (简称沼化肥 ) ,随化肥氮比例增加 ,油菜硝酸盐含量增加。
- Bone-meal and nitrates are common fertilizers. 骨粉和硝酸盐是普通的肥料。
- The soil is enriched with nitrates. 土壤里施了硝酸盐肥料。
- On the slightly acid soil, application of NPK+DCD+Mo enhanced lettuce yield by 21.4% and improved its quality, decreasing nitrate content by 27.3%. 微酸性土以氮磷钾 +DCD +Mo配施较施氮降低茎硝酸盐含量 2 7.;3%25;改善了营养品质;提高产量 2 1
- Potted experiments were used to study the influence of nitrogen intensive gradient on the nitrate content in Chinese cabbage. 利用盆栽试验,研究了氮肥集约度对小白菜中硝酸盐含量的影响。
- The nitrate content in turnip was reduced, while soil organic matter content in the rhizosphere was significantly increased by using organic manure. 施用有机肥料萝卜的硝酸盐含量明显下降，当季作物收获后根际土壤有机质含量明显提高。
- Nitrate content of leafed vegetable was prevalently high through investigated in several large vegetable bases, and over-level status was existent. 通过对淮北市近郊几个大的蔬菜生产基地叶菜类蔬菜中硝酸盐含量的分析,发现淮北市叶菜类蔬菜中硝酸盐含量普遍很高,且有超标状况存在。
- Huang S M,Bao D J.Effect of N fertilizer application on nitrate content in soil and underground water[J].Agri-Environ.Prot.,2000,19(4):228-229. [19]黄绍敏;宝德俊.;施氮对潮土地下水硝态氮含量的影响[J]
- Effects of fertilizer application on nitrogen utilization efficiency and nitrate content in hybrid Pennisetum was studied in Nanjing,Jiangsu province. 在江苏南京地区,研究了肥料运筹对杂交狼尾草氮素吸收利用效率和植株硝酸盐含量的影响。
- Urea+nitrification inhibitor DMPP(Entec46),Urea+nitrification inhibitor DCD(U+DCD) and organic-inorganic fertilizer(OIF) decreased significantly nitrate content of rape. 尿素+硝化抑制剂DM PP(En tec46)、尿素+硝化抑制剂DCD(U+DCD)和有机无机复混肥(O IF)3种氮肥显著降低了油菜硝酸盐含量。
- Teaching content should be concise. 教学内容要少而精。
- The effect was marked. Sulphur can improve the quality of the chinese cabbage,the content of vitamin C increased 13.9%-17.8%,the nitrate content decreased 14.4%-14.9%. 硫肥可以改善白菜的品质;维生素C含量提高13.;9%25~17
