The nitrate content of Chinese cabbage organ was: petiole (stem)> leaves> root.
小白菜器官中硝酸盐含量表现为：叶柄（茎）﹥叶片﹥根。
The other is the effect and correlative mechanism of potassium on nitrate content.
二是钾对硝酸盐含量的影响及相关机理。
Chlorophyll, NRA and nitrate content was positively related to the application quantity of nitrogen.
芹菜叶绿素、硝酸还原酶活性和硝酸盐含量与氮肥施用量呈极显著的线性正相关。
The paper determined nitrate content variation about 12 kinds of vegetables after boiled water blanching.
本文对西宁市12种新鲜蔬菜沸水烫漂前后硝酸盐含量进行了分析测定。
Fruits dry matter content increased because of rooting-zone volume restriction, but nitrate content decreased.
根域体积的限制提高了黄瓜果实的干物质含量，显著降低了果实硝酸盐含量。
Results showed that there were 5 kinds of vegetables nitrate content decreasing and 7 kinds of vegetables increasing.
结果表明：烫漂处理后，有5种蔬菜硝酸盐含量下降，7种蔬菜硝酸盐含量上升。
Study the rapid analytic method of nitrate content in determining liquid milk products by Osicillopolarographic method.
探讨用极谱催化法测定液体乳制品中硝酸盐含量的快速分析方法。
Reducing N and P rates also decreased N and P accumulation and nitrate content in the soil and decreased the risk of N and P running off.
减少氮磷化肥用量可以大幅度降低氮磷在土壤中的累积和硝酸盐的含量，减少氮磷的流失风险。
There were significant negative correlations between nitrate content and total n, protein n, total p, protein p, protein K of lettuce leaf.
莴笋叶片硝酸盐含量与全氮、蛋白氮、全磷、蛋白磷和蛋白钾含量呈极显著负相关。
By replacing nutrition solution with clear water during the later stage of growth, the nitrate content of pakchoi was significantly reduced.
采用在生长后期用清水更换营养液的方法，可明显降低小白菜硝酸盐的含量。
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。
The influence of nitrogen fertilizers breed and different fertilizer compounds on growth and nitrate content of celery were studied by field experiment.
通过田间试验研究了氮肥品种组合及不同肥料配施对芹菜生长和硝酸盐含量的影响。
The spraying of SFNS could improve the quality of farm product, promote the absorption and utilization of NPK and decrease the nitrate content in farm product.
使用专用叶面营养液具有改善农产品品质，提高养分吸收利用，降低硝酸盐的效果。
The effects of six organic manures on nitrate content and nutrient quality of foliage vegetables (celery and romaine lettuce) were studied in soil-less culture.
采用基质栽培试验研究了不同有机肥种类对叶类蔬菜（芹菜和生菜）硝酸盐和营养品质的效应。
An optimized regression design with three factors and five levels was adopted to study the effects of n, K and s fertilizers on the yield and nitrate content of radish.
为使人们能够吃上健康的无公害食品，采用三因素五水平最优回归设计，探讨了氮钾硫配方施肥对黄泥土萝卜产量和硝酸盐含量的影响。
The determination of nitrate content in foods by deoxidization with cadmium is improved. The effecting factors on deoxidization efficiency of cadmium column are studied.
对镉还原测定食品中硝酸盐的方法进行了改进，研究了影响镉柱还原效率的因素。
An optimum regression design with three factors and five levels was adopted to find the effects of n, K and s fertilizers on the yield of Chinese cabbage and the nitrate content in its plant.
采用三因素五水平最优回归设计，研究了黄泥土配施氮钾硫肥对大白菜产量和硝酸盐含量的影响。
Reducing vegetable nitrate content by other strategies, improving current planting system and studying environmental economics of fertilization, are the main problems to be solved in the future.
采取其它措施降低蔬菜硝酸盐含量，改进现有的栽培体系并进行环境经济学的研究，是今后蔬菜研究中应着力解决的几个问题。
Nitrate content in fruit decreased with the increase of K2O.
番茄果实硝酸盐含量随着K2O用量增加而下降。
Nitrate content in fruit decreased with the increase of K2O.
番茄果实硝酸盐含量随着K2O用量增加而下降。
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