Soil available phosphorus, to a large degree, determines the content and distribution of soil glomalin.
土壤速效磷在很大程度上决定土壤球囊霉素的含量和分布。
The results showed that the established model of end phosphorus content in BOF process has good prediction ability.
研究表明,建立的转炉终点磷含量模型有很好的预测能力。
Following with the exhaust test, the content of soil phosphorus storage of each treatment showed a declining tendency.
随着耗竭试验的继续,各处理土壤磷库含量都呈下降趋势。
Abstract: phosphorus is one of the essential mineral elements to plant growth, however, there is fairly less content of soluble phosphorus in soil.
摘要:磷元素植物生长必需的矿质元素之一,而土壤中可溶性磷的含量比较低。
The adding level of phosphorus influences the content of calcium in bones.
日粮中磷的添加才平影响骨骼中钙的含量;
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
结果表明,秸秆还田提高了作物产量,增加了土壤有机碳积累和土壤氮磷含量,且能活化土壤磷素。
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.
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。
Plant phosphorus content and phosphorus uptakes were increase with increase of phosphorus concentration, but plant phosphorus use-efficiency was reducing.
随着液体磷浓度的增加,植株磷含量和磷吸收量相应增加,而植株磷利用效率相应减少。
And usually request steel phosphorus content of less than 0.045%, lower request high quality steel.
因而通常请求钢中含磷量小于0.045%,优质钢请求更低些。
While at grain filling stage, inorganic phosphorus content was obviously higher than that in the varieties with good grain plumpness.
灌浆期,籽粒充实度差的品种无机磷含量明显高于籽粒充实度好的品种。
Combined Genetic Algorithms (ga) and back-propagation neural network (BP), an optimized GA-BP model was established to predict phosphorus content. Some data were chosen to train the network model.
结合遗传算法(GA)和误差反馈型神经网络(BP),建立了优化的GA - BP神经网络预测模型,预测转炉炼钢过程钢液终点磷含量。
The ductile-embrittlement transition temperature of vermicular graphite cast iron increased with increasing phosphorus content both in the as-cast and annealed condition.
蠕铁的韧性——脆性转变温度铸态和退火态均随磷含量的增加而升高。
Phosphorus content in zinc phosphate is determined by phosphorus vanadium molybdate yellow colorimetric method.
采用磷钒钼黄比色法测定磷酸锌中磷含量。
Because of this, the above methods except MADAC are not necessary to be used in estimating the phosphorus content in samples from soil, pasture and livestock products in grassland ecology system.
因此可统一使用钼锑抗比色法测定草原生态系统土草畜样品中的磷含量。
Increasing the applying amount of nitrogen and phosphorus could all promoted nitrogen and phosphorus content in plants and total dry matter weight per unit area.
增施氮磷用量,均可提高油菜植株氮、磷含量和单位面积的总干物重。
The phosphorus content of phytin was determined in molybdate-antimony-scandium color agent after it was digested by concentrated sulfuric acid and perchlorate, with its deviation of no over 5%.
浓硫酸和高氯酸消解后,用钼-锑-钪复合显色剂测定植酸钙中的磷含量,偏差不超过5%;
The proposed approach is used successfully for the prediction of end phosphorus content in convert.
将该方法应用于转炉终点磷含量预报模型,取得了较好的结果。
Compared with conventional electroless nickel plating process, the deposits obtained are greatly improved with higher phosphorus content, hardness, more compact and uniform microstructure.
与传统化学镀镍工艺相比,该工艺所得镀层含磷量高、硬度高,组织结构致密均匀。
Based on the process mineralogy research on improving iron concentrate grade and recovery, reduce the phosphorus content in iron ore concentrate is proposed.
根据工艺矿物学研究成果对提高铁精矿品位和回收率、降低铁精矿中的磷含量给出了建议。
After the analysis of EDS, the changing rules of coating ingredient with different parameters and the relation between phosphorus content and hardness were obtained.
对镀层进行EDS分析,得到了各参数变化时镀层成分的变化规律以及磷含量与硬度的关系。
Also provided by this invention are animal feed compositions that are supplemented with boron containing compounds and which have reduced phosphorus content.
本发明还提供增补了含硼化合物并具有减少了磷含量的动物饲料组合物。
The results showed that this model is good for prediction and control of end phosphorus content in BOF process.
研究表明,本模型能够对终点磷含量进行很好的预报和控制。
Based on the data from field experiments, the phosphorus content and phosphorus accumulation of rice plants were analyzed, and phosphorus distributions in different parts of rice were studied as well.
根据田间试验资料,分析了水稻植株的含磷量、磷素累积量以及不同部位的磷素分配。
Because of high phosphorus content in ore, the exploitation was handicapped by economic and technical conditions at that time and has not yet been exploited.
由于铁矿中含磷量高,受当时经济技术条件的限制,一直未能开发利用。
Scale and corrosion can be restrained effectively by treating circulating water by the reagent prescribed low phosphorus content and highly anti-scale and anti-corrosion components.
采用低磷、高阻垢性、高缓蚀性配方的缓蚀阻垢剂处理电厂的循环水,能有效地控制系统的结垢和腐蚀。
The results indicate that microcrystalline deposit with low phosphorus content has higher hardness, modulus and fatigue resistance than the amorphous deposit with high phosphorus content.
结果表明,低磷微晶镀层较高磷非晶镀层具有更高的硬度、弹性模量和疲劳抗力;
The obtained high-quality phosphate as a byproduct can be used as an animal food additive, and the phosphorus content is over 18%.
作为副产品同时制得的优质磷酸 盐动物饲料添加剂中,磷含量高达18%以上;
The results show such refining makes the end phosphorus content to meet the requirements for high quality steel, and product cost can be reduced.
控制结果表明,此法与常规冶炼工艺相比,不仅保证出钢磷含量满足了品种钢的要求,而且在钢水质量提高的同时大大降低了生产成本。
With this method, the rate of dephosphorization reached 78.5% and the phosphorus content of the manganese ore dropped from 0.19% down to 0.04%.
通过该方法,对磷的质量分数为0.19%的锰矿石,磷的去除率为78.5%,脱磷后锰矿中磷的质量分数下降为0.04%。
The effects of double-row concave ridge and film mulching on phosphorus content in flue-cured tobacco leaves and soils were studied by field and laboratory experiments.
采用田间试验与室内分析相结合的方法,探讨了烤烟地膜覆盖与双行凹型垄结合对烤烟及土壤磷素含量的影响。
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