硫酸钾

柑桔施用硫酸钾和氯化钾效果研究I对树体生长、产量和品质的影响

Study of SOP and MOP application on citrus I Effect of SOP and MOP on citrus tree growth , yield and quality

设施栽培黄瓜施用硫酸钾可获得高产量效应和养分生产效率。

The application of SOP in cucumber at the plastic shed could obtain higher yield and nutrient utilization efficiency .

N，N二甲氨基亚甲基丙烷酰胺过硫酸钾引发丙烯酰胺聚合的研究

Studies on polymerization of acrylamide initiaed by combination of n , n-dimethylaminomethylene & acrylamide with potassium persulfate

石膏两步法制硫酸钾中K2SO4结晶工艺条件研究

Study on K_2SO_4 Crystallization in Potassium Sulfate Production by Two-Step Conversion of Gypsum

以N，N'-亚甲基双丙烯酰胺为交联剂，过硫酸钾为引发剂，采用微波技术一步合成粉末状高吸水树脂。

A super-water-absorbent resin was synthesized by the method of microwave polymerization using N , N ' - methylene-bis-acylamide as a crosslinking agent and ammonium persulfate as an initiator at one step .

以水为溶剂，亚硫酸氢钠和过硫酸钾为引发剂，合成了N羧甲基N，N二甲基N烯丙基氢氧化铵内盐&丙烯酰胺（AA）两性共聚物；

Finally CDAH / acrylamide ( AA ) amphoteric copolymer was prepared in aqueous solution with sodium hydrogen sulfate ( NaHSO 3 ) and potassium persulfate ( K 2S 2O 8 ) as initiators .

以过硫酸钾为引发剂，在乳化剂OP存在下，玉米淀粉与苯乙烯接枝聚合制备了涂料用淀粉-苯乙烯乳液，经红外光谱确认了共聚物。

Starch-styrene emulsion for coating was prepared by grafting copolymerization of corn starch with styrene using K_2S_2O_8 as initiator in the presence of emulsifier OP.

以N，N，N，′N′-四甲基乙二胺-过硫酸钾为氧化-还原引发体系，用水相沉淀聚合法合成了超高相对分子质量的聚醋酸乙烯（PVAc）。

Using N , N , N ′, N ′ - tetramethylethylenediamine and potassium persulphate as a redox initiation system , high molecular weight poly ( vinyl acetate )( PVAc ) was synthesized by aqueous deposited polymerization .

第四部分：首先以过硫酸钾、亚硫酸氢钠为引发剂，水为溶剂的体系中合成了聚丙烯酸（PAA）。

Part four consisted the following points : Firstly acrylic acid was polymerized by choosing potassium persulfate and bisulfite natrium as initiator and water as solvent .

在优惠工艺条件下，产品硫酸钾符合标准一级品要求，其中，K2O＞45%，Cl＜1.5%；

The product of first grade , with K 2O > 45 % and Cl < 1.5 % , was obtained under the optimum conditions .

方法分别测定头花蓼在施用10种不同量的N（尿素）、P（过磷酸钙）、K（硫酸钾）肥及农家肥后的产量，并进行方差分析。

Ex D. Don . Methods To determine its output and give variance analysis to data after applying solely 10 batches different amount of N fertilizer ( carbamide ), P fertilizer ( superphosphate ), K fertilizer ( potash sulphate ) and farm compost , respectively .

硫酸钾与氯化钾的增产效果基本相当，由于氯化钾的价格便宜，施等量K2O时，氯化钾的经济效益较高。

As watermelon had similar yiled responses to potassium chloride and potassium sulfate at the same application rate of K_2O , application of potassium chloride on watermelon could get a higher economic return due to its cheaper price for farmers .

研究了乳液接枝共聚合，单体未加入体系前羟丙基甲基纤维素（HPMC）与引发剂过硫酸钾（KPS）的相互作用。

The interactions between hydroxypropyl methylcellulose ( HPMC ) and potassium persulfate ( KPS ) during the emulsion graft copolymerization process in aqueous system were investigated .

第一种环境是含有过硫酸钾（KPS）的自由基氧化体系，第二种是紫外灯照射下的光氧化环境，第三种为高温环境。

The first ambience was radical oxidation system with potassium persulfate ( KPS ), the second one was photooxidation environment and the third is high-temperature circumstance .

结合电子顺磁共振波谱（EPR）测定结果，推定出了过硫酸钾的分解反应机理以及分解产物与浆料及纤维作用的机理。

The decomposition mechanism of the potassium persulphate is deduced with these and electron paramagnetic resonance spectrum ( EPR ) . Its action mechanism with size and fiber is also done respectively .

采用偶氮二异丁腈（AIBN）和过硫酸钾（KPS）复合引发剂可提高单体的转化率；

Using azo - bis - isobutyronitrile ( AIBN ) and potassium persulfate ( KPS ) as composite initiator ( increased ) the monomer conversion .

研究了温度、引发剂过硫酸钾（KPS）、乳化剂十二烷基硫酸钠（SDS）对2,5-二甲氧基苯胺（DMAn）乳液聚合的影响，确定了较合适的聚合条件。

The effects of temperature , concentrations of initiator ( KPS ) and emulsifier ( SDS ) on emulsion polymerization of 2,5 dimethoxyaniline ( DMAn ) were investigated .

以环己烷为连续相，Span-60为悬浮稳定剂，过硫酸钾为引发剂，N，N′亚甲基双丙烯酰胺为交联剂，对反相悬浮聚合制备聚丙烯酸钠高吸水性树脂进行了研究。

Preparation of high water absorbent poly ( sodium acrylate ) was carried out by inverse suspension polymerization in cyclohexane with Span-60 as suspension stabilizer , potassium persulfate as initiator and N , N ′ methylene bisacrylamide as crosslinking agent .

采用溶剂热法，以丙酮-水为混合溶剂，过硫酸钾（KPS）为引发剂引发甲基丙烯酸甲酯（MMA）和苯乙烯（St）共聚，制得了粒径约为31nm的共聚无皂纳米粒子。

Emulsifier-free poly ( styrene-methylmethacrylate )( P ( St-MMA )) copolymer nanoparticles with an average diameter of about 31 nm were synthesized in an acetone-water medium with potassium persulfate ( KPS ) as the initiator by solvothermal method .

在Fe3O4磁流体存在下，以乙醇/水为分散介质，过硫酸钾作为引发剂，通过苯乙烯与PU大分子单体共聚制备出了两亲磁性聚合物微球。

Amphiphilic magnetic polymer microspheres were synthesized by copolymerization of styrene with PU macromonomer in the presence of Fe_3O_4 magnetic fluid in ethanol / water medium . The structure of copolymer was determined by infrared spectroscopy .

在超声辐射下，用过二硫酸钾（KPS）做引发剂，用原位聚合的方法使丙烯酸原位聚合在纳米PbS上。

The modified nano-PbS is prepared by polymerizing the acrylic acid ( AA ) onto the nano-PbS in the presence of potassium persulfate ( KPS ) by an in situ polymerization method under ultrasonic irradiation .

使用过硫酸钾（KPS）作为引发剂，并辅助于磁性纳米粒子聚集体，最高磁含量可达到52.3wt%，并且实际磁含量高于理论值。

Using KPS as the initiator , helped by introducing magnetite aggregates , the highest magnetite content reached 52.3 wt % , and the real magnetite content was higher than that of theoretical values .

选出最佳的引发剂为过硫酸钾-连二亚硫酸钠，油水质量比为1.1∶1，采用分两次滴加27%和35%的丙烯酰胺（AM）的溶液，合成PAM的相对分子质量达16.6×10~6。

The optimum initiator system is potassium persulfate-sodium dithionite . The ratio of oil to water is 1.1:1 , taking two steps to add 27 % and 35 % of acrylamide to flask , the molecular weight of polyacrylamide is 16.6 × 106 .

本文采用四种降解体系（苯肼、硝基苯-过氧化氢、过硫酸钾-丙醛和高碘酸）制备液体天然橡胶（LNR）。

This paper studied that liquid natural rubber ( LNR ) was prepared respectively by four types of oxidative degradation agents ( phenyl hydrazine , nitrobenzene-hydrogen peroxide , potassium persulfate-propionaldehyde and periodic acid ) .

以水为溶剂，过硫酸钾为引发剂，马来酸酐（MA）、丙烯酸（AA）和甲代烯丙基磺酸钠（MAS）为单体合成了共聚物，综合研究该产品的阻垢性能。

A water soluble copolymer has been prepared with such monomers as maleic anhydride ( MA ), acrylic acid ( AA ) and sodium methylallylsulfonate ( MAS ) by adopting water as solvent and potassium persulphate as initiator . The scale inhibition performance of the copolymer has been comprehensively studied .

分别用碱性过硫酸钾消解紫外分光光度法、比色法、重铬酸盐法测定了灌溉前后灌溉水水质指标总氮、总磷、化学需氧量（CODcr），同时测试pH值。

The water quality indexes , including total nitrogen ( TN ), total phosphorus ( TP ), the chemical oxygen demand ( CODcr ) and pH value , were respectively determined by alkaline potassium persulphate digestion-UV spectrophotometric method , ammonium molybdate spectrophotometric method , dichromate method and pH meter .

岩薯5号的栽培要点是培育壮苗，栽插密度控制在4.5万株/hm2左右，氮、磷、钾肥配合施用，每1hm2施用尿素75kg、过磷酸钙150kg、硫酸钾150kg较为合理。

The keys of cultivation are cultivating strong cuttings , planting 45 000 cuttings per hm ~ 2 approximately with a proper fertilization of urea 75 kg , superphosphate 150 kg , potassium sulphate 150 kg .

每公顷施375kg硫酸钾的处理和每公顷施1950mL抗重茬剂NEB-26的处理对多数测定指标的效应均不明显。

However , the effects of 375 kg / hm ~ 2 K_2SO_4 treatment and NEB - 26 treatment were not significant in most determined items .

在过硫酸钾/亚硫酸钠（K2S2O8/Na2SO3）催化作用下，利用分散聚合的方法，合成丙烯酰胺、阳离子单体与取代乙烯基单体共聚疏水缔合衍生物，产物粒子均匀，直径60～80nm。

With K2S2O8 / Na2SO3 as initiating agent , the hydrophobic association polyacrylamide derivates were synthesized by copolymerization of acrylamide , cation monomer and substituted ethylene monomer with dispersion polymerization and got nanoparticles ( diameter 60 - 80nm ) .

为了合成适于药物包衣用的甲基丙烯酸甲酯-丙烯酸乙酯（MMA-EA）共聚物胶乳，对以非离子型乳化剂OP-10为乳化剂、过硫酸钾为引发剂的MMA-EA乳液共聚动力学进行了研究。

In order to synthesize methyl methacrylate-ethyl acrylate ( MMA-EA ) copolymer latexes suitable for the application of drug coating , the kinetics of MMA-EA emulsion copolymerization , using OP-10 as the emulsifier and KPS as the initiator , were investigated .