查询词典 calcium nitrate

The dormant bud of apple variety Gala was smeared with potassium nitrate at 1%, 3%, 5%, 7% and 9%, and the dormant bud of grape variety Jufeng was smeared with calcium cyanamide diluted at 2,5 and 8 times (weight ratio of calcium cyanamide to water was 1:2). The effects of potassium nitrate and calcium cyanamide with different concn. on breaking natural dormancy of fruit tree were studied.

方法用浓度为1%、3%、5%、7%和9%的硝酸钾涂抹苹果品种嘎拉的休眠芽，用浓度为2倍液（石灰氮与水的重量比为1：2，下同）5、倍液和8倍液的石灰氮涂抹葡萄品种巨峰的休眠芽，研究不同浓度的硝酸钾、石灰氮打破果树自然休眠的效果。

Through making industrial experiment of zinc nitrate with existing equipments,the industrial experiment s of calcium ammonium nitrate and nitro-composite fertilizer show that the production of a calcium ammonium nitrate and nitro-composite fertilizer exist many problems,and so it is need to improve the process and increase equipments.

通过在现有装置上进行的四硝酸锌工业试验、硝酸铵钙工业试验和硝基复合肥的工业试验研究表明，硝酸铵钙和硝基复合肥的生产都存在许多问题，需要改进现有工艺和增加许多设备。

The working conditions of equipments, the mediums and their concentrations, and the interference of coexisting ions were investigated. The results showed that when the flame was shielded with oxygen enriched, the barium in lapis lazuli could be determined using calcium nitrate as releasing agent in 5% nitric acid. The obtained results were satisfied.

对仪器的工作条件、介质及其浓度、共存离子的干扰进行了探索，结果表明，在富氧屏蔽火焰条件下、体积分数为5%硝酸介质中，以硝酸钙作释放剂，测定天青石中的钡，可获得满意结果。

The results showed that calcium nitrate treatment apparently slowed down the consenescence rate, made the flesh firmness higher than the control, elevated the activities of POD, SOD and CAT, retarded the ethylene production, reduced the soluble protein content, and declined the increased speed of electrical conductivity and LOX activity.

结果表明：硝酸钙具有明显延缓甜瓜果实衰老的作用，使果肉硬度显著高于对照，并提高过氧化物酶、超氧化物歧化酶和过氧化氢酶活性，同时降低果肉乙烯释放量、可溶性蛋白含量、外渗电导率的升高速度和脂氧合酶活性的作用。

The main conclusions are as following:(1) Befor the frozen depth reach to the maximum, the frozen depth of different treatments of groundwater, 0.6% of calcium nitrate, 0.6% of potasium sulphate and no irrigation are 132 cm, 130 cm, 129 cm and 108cm in sequence respectively.

得到的主要结论如下：(1)不同冬灌水质处理在冻深达到最大以前，采用地下水灌溉的处理最大冻深最大，为132cm，冻结速率最高，为1.16cm·d~(-1)；加入0.6%的硝酸钙的处理最大冻深次之，为130cm，冻结速率为1.13cm·d~(-1)；加入0.6%的硫酸钾的处理最大冻深排第三，为129cm，冻结速率为1.10cm·d~(-1)；自然条件下未灌溉处理的最大冻深第四为108cm，冻结速率为0.94cm·d~(-1)。

The higher CaO content in phosphate rocks will affect the nitric acid consumption, the crystallization of calcium nitrate tetrahydrate and its filtering charge, the viscosity of neutralized slurry and product quality.

磷矿中氧化钙含量偏高将影响：硝酸消耗；四水硝酸钙的结晶与过滤负荷；中和料浆粘度与产品质量。

Influence of fluorine on filtration of acid-insoluble matter, crystal and filtration of calcium nitrate, ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, rowing fine crystal and troubling filtration in production of nitrophosphate by nitric acid decomposing phosphate rock.

介绍在硝酸分解磷矿生产硝酸磷肥的过程中，杂质氟对酸不溶物过滤、硝酸钙结晶及过滤、母液的氨中和及料浆蒸发过程的影响。由于氟的存在使物料粘度增加，结晶细小，过滤变得困难。

In this study, the aged watermelon seeds were selected as material, soaked by different concentrations of salicylic acid, calcium nitrate and gibberellic acid (GA3), to study the effects on germination rate, related physiological and biochemical indexes of aged watermelon seeds. The results show that the activity of aged watermelon seeds was obviously increased after soaking, and the best treatment to promote germination was Ca(NO3)210mmol/L. Besides, conductivity and soluble sugar content of seeds lixivium, and MDA content of seeds were decreased obviously after treated by SA, Ca(NO3)2 and GA3, and SA treatment had the best obvious effects.

本试验以自然老化的西瓜种为试材，采用不同浓度的水杨酸、硝酸钙、赤霉素预浸种处理，研究其对老化西瓜种子萌发及相关生理生化指标的影响，结果表明：不同处理均可显著提高老化西瓜种子活力，以10mmol/L的Ca(NO3)2处理促进萌发的效果最为明显；不同处理均能明显降低种子浸出液电导率、可溶性糖含量及种子中丙二醛含量，以水杨酸的各处理效果最好。

A suggestion is put forward to adding H2SO4 or (NH4)2SO4 into the mother liquor after calcium nitrate tetrahydrate separated for a further removal of residual Ca, thus the Ca content can be decreased to 0.35% from the previous 3.4%, and the viscosity of neutralized slurry to 0.04 ～0.08 Pa·s, with nice fluidity of slurry Water soluble phosphorus accoun ts to 88%～90%, and the process improves the adaptability of phosphate rock to nitrophosphate production.

提出分离四水硝酸钙后的母液加入H2SO4或(NH4)2SO4进一步除去母液中残钙，可使母液中钙含量由3.4%降到0.35%以下，中和器中料浆粘度可降到0.04～0.08 Pa·s，料浆流动性很好，产品中磷的水溶率可达88%～90%，并提高了硝酸磷肥生产对磷矿的适应能力。

Influence of fluorine on filtration of acidinsoluble matter, crystal and filtration of calcium nitrate , ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, growing fine crystal and troubling filtration in production of nitrophosphate by nitric acid decomposing phosphate rock.

介绍在硝酸分解磷矿生产硝酸磷肥的过程中，杂质氟对酸不溶物过滤、硝酸钙结晶及过滤、母液的氨中和及料浆蒸发过程的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。