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Effect of Saline Water on Soil Acidity, Alkalinity and Nutrients Leaching in Sandy Loamy Soil in Rwamagana Bella Flower Farm, Rwanda
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作者 Abel Mwubahaman Wali Umaru Garba +3 位作者 Hussein Bizimana Jean de Dieu Bazimenyera Eric Derrick Bugenimana Jean Nepomuscene Nsengiyumva 《Agricultural Sciences》 2024年第1期15-35,共21页
The necessity to saline and sodic waters is sometimes used for irrigating agricultural activities under certain circumstances, but it is important to note that the use of these waters comes with specific consideration... The necessity to saline and sodic waters is sometimes used for irrigating agricultural activities under certain circumstances, but it is important to note that the use of these waters comes with specific considerations and limitations. One way to decrease undesirable effects of sodic waters on the physical and chemical properties of soils is to apply organic and chemical amendments within the soil. This study aimed to assess the effectiveness of saline water on soil acidity, alkalinity and nutrients leaching in sandy loamy soil at Bella flower farm, in Rwamagana District, Rwanda. The water used was from the Muhazi Lake which is classified as Class I (Saline water quality). Column leaching experiments using treated soils were then conducted under saturated conditions. The soil under experimental was first analyzed for its textural classification, soil properties and is classified as sandy loamy soil. The t-test was taken at 1%, 5% and 10% levels of statistical significance compared to control soil. The results indicated that the application of saline water to soils caused an increase in some soil nutrients like increase of Phosphorus (P), Potassium (K<sup>+</sup>), Magnesium (Mg2<sup>+</sup>), Sulphur (S), CN ratio and Sodium (Na<sup>+</sup>) and decreased soil texture, physical and chemical properties and remained soil nutrients. Consequently, the intensive addition of saline water leachates to soil in PVC pipes led to decreased of soil EC through leaching and a raiser Soluble Sodium Percentage (SSP). The rate of saline water application affected the increase accumulation of SAR and Na% in the top soil layers. The study indicated that saline water is an inefficient amendment for sandy soil with saline water irrigation. The study recommends further studies with similar topic with saline water irrigation, as it accentuated the alkalinity levels. 展开更多
关键词 NUTRIENTS LEACHING Saline water Soil acidity Soil Alkalinity
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Cocos nucifera L.water as green corrosion inhibitor for acid corrosion of aluminium in HCl solution 被引量:2
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作者 Olusegun K.Abiola Y.Tobun 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第12期1449-1452,共4页
The ability of Cocos nucifera L.water(CW) as non-toxic corrosion inhibitor for acid corrosion of aluminium in 0.5 mol/L HCl has been studied using chemical technique.CW shows significant inhibition as corrosion inhi... The ability of Cocos nucifera L.water(CW) as non-toxic corrosion inhibitor for acid corrosion of aluminium in 0.5 mol/L HCl has been studied using chemical technique.CW shows significant inhibition as corrosion inhibitor,with 93%efficiency at the highest concentration of the inhibitor.The inhibitive action is attributed to the adsorption of the inhibitor molecules on metal surface following Langmuir adsorption isotherm. 展开更多
关键词 Cocos nucifera L. water acid inhibition Green inhibitor Aluminium Weight loss
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Dynamically-evolved surface heterojunction in iridium nanocrystals boosting acidic oxygen evolution and overall water splitting 被引量:2
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作者 Chenyu Yang Xiuxiu Zhang +6 位作者 Qizheng An Meihuan Liu Wanlin Zhou Yuanli Li Fengchun Hu Qinghua Liu Hui Su 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第3期374-380,I0011,共8页
Simultaneously realizing improved activity and stability of acidic oxygen evolution reaction(OER) electrocatalysts is highly promising for developing cost-effective sustainable energy in the splitting of water techniq... Simultaneously realizing improved activity and stability of acidic oxygen evolution reaction(OER) electrocatalysts is highly promising for developing cost-effective sustainable energy in the splitting of water technique.Herein,we report iridium nanocrystals embedded into 3D conductive clothes(Ir-NCT/CC) as a low iridium electrocatalyst realizing ultrahigh acidic OER activity and robust stability.The well-designed Ir-NCT/CC requires a low overpotential of 202 mV to reach the current density of 10 mA cm^(-2)with a high mass activity of 1754 A g^(-1).Importantly,in acidic overall water splitting,Ir-NCT/CC merely delivers a cell voltage of 1.469 V at a typical current density of 10 mA cm^(-2)and also maintains robust durability under continuous operation.We identify that a low working voltage drives the formation of a highly stable amorphous IrOxactive phase over the surface of Ir nanocrystals(surface heterojunction IrOx/Ir-NCT) during operating conditions,which contributes to an effective and durable OER process. 展开更多
关键词 ELECTROCATALYST Surface heterojunction In-situ synchrotron radiation techniques Reaction kinetics acidic overall water splitting
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Enhanced Acid/Base Catalysis in High Temperature Liquid Water 被引量:1
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作者 Xiu Yang LU Qi JING Zhun LI Lei YUAN Fei GAO Xin LIU 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第6期841-844,共4页
Two novel and environmentally benign solvent systems, organic acids-ennchea high temperature liquid water (HTLW) and NH3-enriched HTLW, were developed, which can enhance the reaction rate of acid/base-catalyzed orga... Two novel and environmentally benign solvent systems, organic acids-ennchea high temperature liquid water (HTLW) and NH3-enriched HTLW, were developed, which can enhance the reaction rate of acid/base-catalyzed organic reactions in HTLW. We investigated the decomposition of fructose in organic acids-enriched HTLW, hydrolysis of cinnamaldehyde and aldol condensation of phenylaldehyde with acetaldehyde in NH3-enriched HTLW. The experimental results demonstrated that organic acids-enriched or NH3-enriched HTLW can greatly accelerate acid/base-catalyzed organic reactions in HTLW. 展开更多
关键词 High temperature liquid water acid/base-catalysis organic reactions.
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EFFECT OF NITROGEN-CONTAINING SOLVENTS ON VAPOR-LIQUID EQUILIBRIUM OF WATER-ACETIC ACID SYSTEM 被引量:3
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作者 胡兴兰 周荣琪 《化工学报》 EI CAS CSCD 北大核心 2004年第2期337-338,共2页
关键词 含氮类萃取剂 水-醋酸 汽液平衡 分离 N-甲基乙酰胺 蒸馏
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Spectrophotometric Study on the Interaction of Water with Chloranilic Acid and its Analytical Application 被引量:1
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作者 FengLinZHAO XiLanFENG +2 位作者 XueJingLIU NaLI KeAnLI 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第7期931-934,共4页
The reaction between chloranilic acid and water in alcohol was studied spectrophotometrically. The conditions of reaction were investigated in detail. The stable purple complex with an absorption wavelength at 530 nm ... The reaction between chloranilic acid and water in alcohol was studied spectrophotometrically. The conditions of reaction were investigated in detail. The stable purple complex with an absorption wavelength at 530 nm was produced from the reaction between chloranilic acid and water. As a method for determination of H2O, Beer’s law was obeyed in range of 0-6.0 % or 0-8.0 % (V/V) with the detection limit of 0.13 %. The relative standard deviation (RSD) was less than 2 %. The proposed method has been applied to determination of trace amount of water in ethanol, flour and food flavoring, respectively. The recoveries of water in samples were 97~102 %. 展开更多
关键词 water chloranilic acid charge-transfer reaction spectrophotometry.
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Effects of Drinking Slightly Acidic Electrolytic Water on Growth Performance and Behavior of Broilers 被引量:1
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作者 Ji Zhenzhen Hui Xue +2 位作者 Shi Zhifang Xi Lei Zhai Feile 《Animal Husbandry and Feed Science》 CAS 2020年第3期25-29,共5页
[Objective]The paper was to study the effects of drinking slightly acidic electrolytic water on growth performance and behavior of Rose 308 broilers,and to provide reference for the application of slightly acidic elec... [Objective]The paper was to study the effects of drinking slightly acidic electrolytic water on growth performance and behavior of Rose 308 broilers,and to provide reference for the application of slightly acidic electrolytic water in broiler breeding.[Method]A total of 300 healthy 10-day-old Rose 308 broilers with similar body weight were randomly divided into five groups,three replicates each group,20 broilers each replicate.The broilers in control group were supplied with normal drinking water,and the broilers in experimental groups consumed slightly acidic electrolytic water with 0.3,0.5,0.7,1.0 mg/L residual chlorine,respectively.The test lasted 21 d.[Result]At 10-30 days of age,the water consumption of broilers in 0.7 and 1.0 mg/L electrolytic water groups were increased by 9.27%and 7.67%respectively compared with the control group(M<0.05).The average daily feed intake(ADFI)of broilers in 0.7 and 1.0 mg/L electrolytic water groups were increased compared with the control group(Q0.05).The average daily gain(ADG)of broilers in 0.7 mg/L electrolytic water group was 11.99%lower than that in control group(M<0.05).The feed gain ratio(F/G)of broilers in 0.5 mg/L electrolytic water group was 12.29%lower than that in control group(M<0.05),and the mortality was the lowest in 0.5 mg/L electrolytic water group.The standing,feeding and drinking frequency of broilers in experimental groups were higher than that in control group,and the flapping behavior of broilers in 0.5 mg/L electrolytic water group was the lowest.[Conclusion]Drinking slightly acidic electrolytic water has positive effect on the growth and behavior of broilers. 展开更多
关键词 Slightly acidic electrolytic water Rose 308 broilers Growth performance BEHAVIOR
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Preparation and photocatalytic properties of ilmenite NiTiO_3 powders for degradation of humic acid in water 被引量:2
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作者 Pei-hong Yuan Cai-mei Fan Guang-yue Ding Yun-fang Wang Xiao-chao Zhang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2012年第4期372-376,共5页
The powders of ilmenite structure NiTiO3 were prepared by a modified Pechini process using tetrabutyl titanate and nickel acetate as raw materials, and using citric acid and ethanol as a chelating agent and a solvent ... The powders of ilmenite structure NiTiO3 were prepared by a modified Pechini process using tetrabutyl titanate and nickel acetate as raw materials, and using citric acid and ethanol as a chelating agent and a solvent respectively. The powder samples were characterized by thermogravimetric and differential thermal analysis (TG-DTA) and X-ray diffraction (XRD). The photocatalytic activity of NiTiO3 under the irradiation of ultraviolet rays (UV) light was evaluated by degrading hurnic acid (HA) in water as a probe reaction. The possible photodegra- dation mechanism was studied by the examination of active species .OH, .O2, and holes (h+) through adding scavengers. The TG-DTA and XRD results indicated that the good crystal structure of ilmenite phase NiTiO3 could be obtained when the Ni-Ti citrate complex was cal- cined at 600℃. The photocatalytic activity experiments indicated that NiTiO3 had favourable photocatalytic activity under the irradiation of UV light, and the photocatalytic degradation rate of HA reached 95.3% after a 2.5 h reaction with the photocatalyst calcined at 600℃ and a photocatalyst dosage of 0.4 g/L. The possible photocatalytic mechanism was deduced that holes (h+) and .OH radicals are the major reactive active species in the photocatalytic reaction, and dissolved oxygen plays a weak role in the degradation of HA. 展开更多
关键词 photocatalysis nickel titanate DEGRADATION humic acid water treatment
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Preparation of fructone catalyzed by water-soluble Brφnsted acid ionic liquids 被引量:3
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作者 Yuan Yuan Wang Rong Wang +1 位作者 Liang Chun Wu Li Yi Dai 《Chinese Chemical Letters》 SCIE CAS CSCD 2007年第1期24-26,共3页
Fructone (2-methyl-2-ethylacetoacetate-1, 3-dioxolane), a flavouring material, has been synthesized from ethyl acetoacetate and glycol using five water-soluble Brφnsted acid ionic liquids as catalysts for the first... Fructone (2-methyl-2-ethylacetoacetate-1, 3-dioxolane), a flavouring material, has been synthesized from ethyl acetoacetate and glycol using five water-soluble Brφnsted acid ionic liquids as catalysts for the first time. The used Brφnsted acid ionic liquids include [Hmim]Tfa, [Hmim]Tsa, [Hmim]BF4, [Bmim]HSO4, [Bmim]H2P04, and [Hmim]BF4 showed the highest catalytic activity for the preparation of fructone. After reaction, the product could be isolated from the reaction system automatically, and the ionic liquid could be directly reused without dehydration. 展开更多
关键词 Fructonc water-soluble Brφnsted acid ionic liquids CATALYST
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Behaviour of Haloacetic Acids in Drinking Water Distribution Systems 被引量:1
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作者 Yimei Tian Hao Guo +2 位作者 Yang Wang Yang Liu Jinlin Shan 《Transactions of Tianjin University》 EI CAS 2017年第1期93-99,共7页
To guarantee the safety of drinking water quality after chlorination, the formation, distribution and factors influencing the concentrations of haloacetic acids (HAAs) in a water distribution system (WDS) were investi... To guarantee the safety of drinking water quality after chlorination, the formation, distribution and factors influencing the concentrations of haloacetic acids (HAAs) in a water distribution system (WDS) were investigated both on a full-scale WDS (FWDS) and pilot-scale WDS (PWDS) within a city in northern China. The results of both investigations showed that trichloroacetic acid (TCAA) and dichloroacetic acid (DCAA) were the dominating types of HAAs. In the FWDS, variations in the HAA content showed negative correlations with total residual chlorine, pH and non-purgeable organic carbon (NPOC) and positive correlations with temperature and UV254. In the PWDS, the concentration of HAAs after rechlorination followed the rule of ‘first rise and then fall’; therefore, locating an appropriate rechlorination point and lowering the single chlorine dosage could be used as effective measures to control the HAA content in WDSs. © 2016, Tianjin University and Springer-Verlag Berlin Heidelberg. 展开更多
关键词 CARBON CHLORINE Correlation methods Dichloroacetic acid Organic carbon Potable water Trichloroacetic acid water water quality water supply systems
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Evaluation of trans-ferulic acid degradation by dielectric barrier discharge plasma combined with ozone in wastewater with different water quality conditions 被引量:2
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作者 Jingyu REN Nan JIANG +3 位作者 Kefeng SHANG Na LU Jie LI Yan WU 《Plasma Science and Technology》 SCIE EI CAS CSCD 2019年第2期68-77,共10页
In this study, dielectric barrier discharge plasma and ozone(O_3) were combined to synergistically degrade trans-ferulic acid(FA), and the effect of water quality on FA degradation was studied. The results showed that... In this study, dielectric barrier discharge plasma and ozone(O_3) were combined to synergistically degrade trans-ferulic acid(FA), and the effect of water quality on FA degradation was studied. The results showed that 96.9% of FA was degraded after 40 min treatment by the plasma/O_3 process. FA degradation efficiency increased with the p H values. The presence of suspended solid and humic acid inhibited FA degradation. FA degradation efficiency increased as the water temperature increased to 30 °C. However, the further increase in water temperature was adverse for FA degradation. Effects of common inorganic ions on FA degradation were also investigated. The addition of Cl^- inhibited the FA degradation, whileCO_3^(2-) had both negative and positive influences on FA degradation.NO_3^- andSO_4^(2-) did not have significant effect on FA degradation. Fe^(3+)and Cu^(2+)benefited FA degradation through the Fenton-like and catalytic ozonation reactions. 展开更多
关键词 dielectric BARRIER DISCHARGE OZONE trans-ferulic acid water quality INORGANIC ions
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Effects of fulvic acid and humic acid on aluminum speciation in drinking water 被引量:6
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作者 Wendong Wang Hongwei Yang +2 位作者 Xiaochang Wang Jing Jiang Wanpeng Zhu 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第2期211-217,共7页
This article focused on the influences of fulvic acid and humic acid on aluminum speciation in drinking water. Factors including the concentration of residual chlorine and pH value had been concerned. Aluminum species... This article focused on the influences of fulvic acid and humic acid on aluminum speciation in drinking water. Factors including the concentration of residual chlorine and pH value had been concerned. Aluminum species investigated in the experiments included inorganic mononuclear, organic mononuclear, mononuclear, polymer, soluble, and suspended forms. It was found that the effects of fulvic acid and humic acid on aluminum speciation depended mainly on their molecular weight. Fulvic acid with molecular weight less than 5000 Dalton had little influence on aluminum speciation; while fulvic acid with molecular weight larger than 5000 Dalton and humic acid would increase the concentration of soluble aluminum significantly even at concentration below 0.5 mg/L (calculated as TOC). Aluminum species, in the present of fulvic acid with molecular weight larger than 5000 Dalton and humic acid, were more stable than that in the present of fluvic acid with molecular mass less than 5000 Dalton, and varied little with reaction time. Within pH range 6.5-7.5, soluble aluminum increased notably in water with organic matter. As the concentration of residual chlorine increased, the effects of fulvic acid and humic acid became weak. The reactions between humic acid, fulvic acid with large molecular weight, and aluminum were considered to be a multi-dentate coordination process. With the consideration of aluminum bioavailability, reducing the concentration of fulvic acid and humic acid and keeping the pH value among 6.5-7.5 were recommended during drinking water treatment. 展开更多
关键词 aluminum species drinking water fluorometric method fulvic acid humic acid
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Researches on Formation of Haloacetic Acids in Chlorination of Drinking Water by a Novel Technique 被引量:4
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作者 LIXin RENYue-ming +1 位作者 QIANGLiang-sheng ZHAOHong-bin 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2004年第3期285-288,共4页
Haloacetic acids(HAAs) are formed during the chlorination of drinking water,which are harmful to people′s health due to their carcinogenic and mutagenic effects. In the present study,a detection method combining meth... Haloacetic acids(HAAs) are formed during the chlorination of drinking water,which are harmful to people′s health due to their carcinogenic and mutagenic effects. In the present study,a detection method combining methyl tert -butyl ether(MtBE) extraction with acid catalysis and gas chromatography coupled with an electron capture detector(GC/ECD) was developed for determining HAAs. The detection limit of this method(MDL) and relative standard deviation(RSD) were below 0.37 μg/L and 6.2%,respectively. The laboratory chlorination experiments were conducted with the purpose of investigating the influences of reaction time,temperature,UV_ 254 ,bromide and ammonia-nitrogen on the formation of HAAs. The results show that the formation amount of HAAs increases with increasing reaction time and temperature,respectively;and there exists a linear relationship between the formation of HAAs and UV_ 254 . The formation amount of HAAs decreases first and then increases as the bromide ion concentration increases,and adding NH +_4 is a possible way to control the formation of HAAs. 展开更多
关键词 Haloacetic acid(HAA) Drinking water CHLORINATION
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A Self-assembled T4(2)5(2) Water Tape Stabilized by a Nickel(II) Complex with L-cysteic Acid 被引量:1
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作者 李海叶 蒋毅民 +1 位作者 黄富平 陈丽 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第8期1189-1193,共5页
An interesting T4(2)5(2) water tape formed by fused cyclic water pentamers and tetramer was self-assembled in a new inorganic host [Ni(L)(phen)2]·5H2O (L = L-cysteic acid) and characterized by X-ray dif... An interesting T4(2)5(2) water tape formed by fused cyclic water pentamers and tetramer was self-assembled in a new inorganic host [Ni(L)(phen)2]·5H2O (L = L-cysteic acid) and characterized by X-ray diffraction. Each [Ni(L)(phen)2] molecule crystallizes with five water molecules with a molecular formula of [Ni(L)(phen)2]·5H2O. The T4(2)5(2) water tape and [Ni(L)(phen)2] molecules assemble into a network of water tapes sandwiched between [Ni(L)- (phen)2] tapes. The network is stabilized by π-π stacking between [Ni(L)(phen)2] molecules and three types of hydrogen-bonding interactions between [Ni(L)(phen)2] molecules, water molecules, and water and [Ni(L)(phen)2] molecules. 展开更多
关键词 L-cysteic acid water tape sandwiched packing
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Esterification by the Plasma Acidic Water:Novel Application of Plasma Acid
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作者 古玲 《Plasma Science and Technology》 SCIE EI CAS CSCD 2014年第3期223-225,共3页
This work explores the possibility of plasma acid as acid catalyst in organic reactions. Plasma acidic water was prepared by dielectric barrier discharge and used to catalyze esterification of n-heptanioc acid with et... This work explores the possibility of plasma acid as acid catalyst in organic reactions. Plasma acidic water was prepared by dielectric barrier discharge and used to catalyze esterification of n-heptanioc acid with ethanol. It is found that the plasma acidic water has a stable and better performance than sulfuric acid, meaning that it is an excellent acid catalyst. The plasma acidic water would be a promising alternative for classic mineral acid as a more environment friendly acid. 展开更多
关键词 plasma chemistry plasma acidic water esterification reaction dielectric bar-rier discharge
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Chemical characteristics of acidified waters in southwest China
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作者 Lei Zhihong Liang Xiaoming +1 位作者 Xu Xiaoqing Xia Yicheng (Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China) Norio Ogura (Department of Environmental Science and Resources,Tokyo University of Agriculture and Technology,Tokyo,Japan) 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1995年第1期36-43,共8页
ChemicalcharacteristicsofacidifiedwatersinsouthwestChinaLeiZhihong;LiangXiaoming;XuXiaoqing;XiaYicheng(Insti... ChemicalcharacteristicsofacidifiedwatersinsouthwestChinaLeiZhihong;LiangXiaoming;XuXiaoqing;XiaYicheng(InstituteofHydrobiolog... 展开更多
关键词 ELEMENT acidifed waters acid rain.
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Electrokinetic chemical characteristics of humic and dannic acids effecting on the natural water and its coagulation 被引量:1
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作者 Qu Jiuhui Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1997年第1期71-79,共9页
Taking streaming current(SC)as the electrokinetic parameter,this paper demon- strated the electrokinetic chemical characteristics of humic and dannic acids(HA and DA)in sus- pensions including turbid water,coagulated ... Taking streaming current(SC)as the electrokinetic parameter,this paper demon- strated the electrokinetic chemical characteristics of humic and dannic acids(HA and DA)in sus- pensions including turbid water,coagulated water and HA or DA contained water.Accordingly, the studies were carried out for determining the relationship between streaming current and zeta po- tential ζ(expressed by eleetrophoretie mobility EM)in above water conditions.In addition,the mechanisms of HA effecting on streaming current within or after coagulant addition and the elec- trokinetic detection principles for HA or DA were also investigated on experiments and theoretical analysis.The results indicated that the change of SC like ζ presented meaningful information con- cerning the degree for destabilization of a particulate suspension,and HA or DA in water could re- markably decrease the effect of inorganic coagulant upon streaming current,which is in accordance with their influence on coagulation. 展开更多
关键词 electrokinetic chemical characteristics humic acid dannic acid natural water.
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Green Synthesis of Aryl Thioethers through Cu-catalysed C-S Coupling of Thiols and Aryl Boronic Acids in Water 被引量:1
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作者 TU Peihua LI Xinhua 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2019年第4期987-993,共7页
An efficient, practical, highly selective and environmentally benign method is reported for the synthesis of aryl thioethers via the coupling of thiols with aryl boronic acids in the presence of NaOH and a catalytic a... An efficient, practical, highly selective and environmentally benign method is reported for the synthesis of aryl thioethers via the coupling of thiols with aryl boronic acids in the presence of NaOH and a catalytic amount of CuSO4 at 130 ℃ using water as a green solvent. The products were obtained in moderate to excellent yields;more importantly, the use of toxic ligands and solvents was avoided. A broad range of aryl boronic acids and scalable processes make this methodology valuable and versatile for the synthesis of a broad range of aryl sulfides. 展开更多
关键词 green synthesis Cu-catalysed C-S COUPLING ARYL boronic acids water solvent ARYL thioether
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Effect of Humic Acid, Mycorrhiza Inoculation, and Biochar on Yield and Water Use Efficiency of Flax under Newly Reclaimed Sandy Soil 被引量:4
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作者 Bakry Ahmed Bakry Omar Maghawry Ibrahim +1 位作者 Abdelraouf Ramadan Eid Elham Abdelmoneim Badr 《Agricultural Sciences》 2014年第14期1427-1432,共6页
In order to examine the application of different soil and foliar organic fertilizers as well as biofertilizing flax under sandy soil conditions, two field experiments were carried out at the Research and Production St... In order to examine the application of different soil and foliar organic fertilizers as well as biofertilizing flax under sandy soil conditions, two field experiments were carried out at the Research and Production Station of the National Research Centre (NRC), Al Nubaria district, El-Behaira Governorate, Egypt during 2012/2013 and 2013/2014 winter seasons. The trials aimed to study the effect of humic acid (HA) as low cost natural fertilizer, inoculation with mycorrhiza, and biocharcoal on on yield, quality and water use efficiency of flax variety (Amon) under newly reclaimed sandy soil. The treatments consisted of HA (25 kg/feddan), inoculation with mycorrhiza (1 kg/ feddan), and biochar (4 tons/feddan) and all the combinations among the treatments. Results showed that the treatment combination of (humic acid + mycorrhiza + biochar) was significantly superior compared to all the other treatments in number of capsules/plant, biological yield/plant (g), seed yield/plant (g), seed yield (kg/feddan), straw yield (tons/feddan), oil percent (%), and oil yield (kg/feddan). However, it gave the highest fruiting zone length (cm) but not significantly different from (mycorrhiza + biochar) and (humic acid + biochar), also it gave the highest seed index (g) but not significantly different from humic acid and (humic acid + mycorrhiza). The treatment combination of (humic acid + biochar) gave the highest plant height (cm), technical stem length (cm), and number of branches/plant. 展开更多
关键词 FLAX HUMIC acid BIOCHAR MYCORRHIZA water Use Efficiency
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The Condensation of Aromatic Aldehydes with Acidic Methylene Compounds in Water 被引量:2
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作者 DaQingSHI JingCHEN +2 位作者 QiYaZHUANG XiangShanWANG HongWenHU 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第12期1242-1245,共4页
The condensation of aromatic aldehydes with acidic methylene compounds such as malononitrile, methyl cyanoacetate, cyanoacetamide, 5,5-dimethyl-1,3-cyclohexanedione, bartbituric acid and 2-thiobarbituric acid proceede... The condensation of aromatic aldehydes with acidic methylene compounds such as malononitrile, methyl cyanoacetate, cyanoacetamide, 5,5-dimethyl-1,3-cyclohexanedione, bartbituric acid and 2-thiobarbituric acid proceeded very efficiently in water in the presence of triethylbenzylammonium chloride (TEBA) and the products were isolated simply by filtration. 展开更多
关键词 CONDENSATION aromatic aldehyde acidic methylene compound water green chemistry.
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