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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。
Du Y Q, Wang F H, Li N J et al.Investigation and analysis of nitrate contents of vegetables in Guangdong[J].Ecol.Environ., 2004, 13(1): 19-22. [1]杜应琼;王富华;李乃坚;等.;广东省蔬菜硝酸盐含量的调查与分析[J]
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。
In laminae and leafstalk, nitrate contents of metaphase of fruiting were highest, while in fruit that of early-days of fruiting was highest. 叶片和叶柄硝酸盐含量盛果期最高，末果期最低，果实则初果期最高；
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。
Nitrification inhibitors,HQ, DCD and TU, could all decrease nitrate contents in pakchoi significantly in three stages of pakchoi. But the effect varies with the test soil. 三种硝化抑制剂HQ(氢醌)、DCD(双氰胺)和TU(硫脲)在蔬菜的不同时期均不同程度的降低了蔬菜硝酸盐含量，但是不同供试土壤上的试验反映的情况不完全一致。
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]
The nitrate contents in leafstalk were decreased at first and later increased following the lower of positions, re verse the direction of the nitrate reductase activity. 随叶位降低，叶柄硝酸盐含量先降低后升高，叶片硝酸还原酶活性呈相反趋势。
Tissue nitrate contents in different organs of pakchoi were in the decreasing order of petiole >leaf blade >root, but no significant difference was found among these three organs. 不同器官组织硝酸盐含量呈叶柄>叶片>根系，而各器官液泡硝酸盐活度不存在显著差异；
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。
At over half of the 69 investigated locations nitrate contents in ground water and drinking water exceed 50 mg/L, the allowable limit for nitrate content in drinking water. 在调查的69个地点中有半数以上超过饮用水硝酸盐含量的最大允许量(50毫克/升)。