此外，还有约79中小规模的单位生产过磷酸钙。
Besides, there are about 79 small and medium scale units producing single superphosphate.
我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙。
We make superphosphate by reacting rock phosphate with sulphuric acid.
介绍含高铁铝磷矿制过磷酸钙，产品有效磷退化的情况。
The available phosphorus degradation of SSP is analyzed on the productive process from phosphate rock with high iron and aluminum contents.
这一特性或许对过磷酸钙生成反应速率的提高有积极意义。
The characteristic may be helpful to improve the reactive rate for the production of SSP.
研究了用电位滴定法快速测定新鲜过磷酸钙磷肥中有效磷含量的方法。
In this paper, quick determination of the content of the effective phosphorus in the new calcium superphosphate by means of potentiometric titration has been researched.
磷酸一铵、磷酸二铵、复合肥、复混肥、过磷酸钙、冲施肥制造、销售。
Production and Market Situation for High Efficient Compound Fertilizer-Ammonium Nitrate & Calcium Nitrate;
摘要：试验研究了不同过磷酸钙添加量对蔬菜废弃物堆肥腐熟进程的影响。
Abstract: The effects of different addition amounts of superphosphate on vegetable waste compost were studied.
摘要通过实验研究不同磷矿粉粒度和酸用量对过磷酸钙产品物性和质量的影响。
Based on the experiment, the effects of both the fineness of ground phosphate rock and acid consumption on the property and quality of SSP products are studied.
介绍LG Q型计量器的结构、性能，以及在过磷酸钙生产中用于水和硫酸计量的情况。
Introduces the structure, characteristics of LGQ type gauger, and the situation of measuring water and sulphuric acid in SSP production.
通过一系列的实验室试验和小型中间连续试验，明确了宜昌磷矿制尿素过磷酸钙的可行性。
Through a series of laboratory and small pilot scale continuous experiments, the feasibility of urea - calcium superphosphate production with Yichang phosphorous ore has been proved.
采用盆栽试验方法，研究了施入过磷酸钙磷肥对土壤中外源铅的形态变化及其生物有效性的影响。
Using pot experiment, the transformations of different forms and the bioavailability of added Pb in soil blended with single superphosphate (SSP) were determined.
对钙镁磷肥、过磷酸钙和部分酸化磷肥在河南郑州西岗沙土和河南西华县潮土中的退化情况进行了研究。
The phosphate degradation was studied when Fused Magnesium phosphate, Single-super phosphate and Partially Acidulated phosphate Rock were applied in two kinds of soils.
根据黄土丘陵区土壤肥力特点及土体结构，选用硝酸铵和过磷酸钙作为试验肥料，进行了不同施肥量试验。
According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.
本文系统地报道了氯化胺、过磷酸钙、苹果枝木灰和饼肥四种肥料对国光和青香蕉苹果树的根际营养效果。
This paper systematically reports the effect of root nutrition in apple trees. After apply the four fertilizers, the best effect is the apple branch ash.
磷酸三钙几乎完全不溶于水，在稀酸中溶解也极为缓慢。所以，作为肥料，通常得把磷酸三钙转化为过磷酸钙。
It is practically insoluble in water and only very slowly soluble in diluted acids, so it is largely converted for fertilizing purposes into superphosphate.
本文用正交设计方法对过磷酸钙水浸取过程中倍半氧化物的浸出进行了实验研究，筛选了添加剂的种类和浸取条件。
The water extraction process of iron and aluminum oxides from superphosphate is experimented and studied by orthogonal designing method and the kinds of additive and extraction conditions are sieved.
粒状重过磷酸钙(GTSP)是一种高浓度、水溶性的速效磷肥，其有效磷含量是普钙(ssp)的2.5 ~ 3.0倍。
Heavy granular superphosphate (GTSP) is a high concentration of water-soluble phosphate available, the available phosphorus content is SSP (SSP) of 2.5 ~ 3.0 times.
三料过磷酸钙简称：重钙(TSP)质量标准：HG 2219- 2224 - 91性状：粒状固体，微酸性，外观呈灰白色或暗竭色。
Triple superphosphate Abbreviations: TSP (TSP) Quality Standard: HG2219-2224-91 Characters: granular solid, slightly acidic, look pale or dark colored exhaust.
采用堆肥池，以硫酸、磷酸、硫酸铝、硫酸钙、氯化钙、过磷酸钙作为化学改良剂，研究了化学改良剂对稻草猪粪堆肥氨气挥发累积规律和腐熟进程的影响。
Sulfuric acid, phosphoric acid, aluminum sulphate, calcium sulphate, calcium chloride and superphosphate were selected as chemical amendments for co-composting of pig manure and straw.
采用尿素与包裹后的磷钾粒肥直接掺混，避免和解决了尿素-过磷酸钙系复混肥生产中存在的一系列问题，减少了氮素的损失，提高了产品的市场销售属性，增大了企业经济效益。
The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on urea-SSP, with lower N loss, easier sale and more economy.
采用尿素与包裹后的磷钾粒肥直接掺混，避免和解决了尿素-过磷酸钙系复混肥生产中存在的一系列问题，减少了氮素的损失，提高了产品的市场销售属性，增大了企业经济效益。
The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on urea-SSP, with lower N loss, easier sale and more economy.
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