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Patrick S. Michael
Pág. 42 - 54
In poor soils, addition of alkaline sandy loam containing an adequate proportion of sand, silt and clay would add value by improving the texture, structure and organic matter (OM) for general use of the soils. In acid sulfate soils (ASS), addition ...
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Stanislav Dushkin,Tamara Shevchenko
Pág. 26 - 36
This paper reports a study on the application of aluminum sulfate solution, modified by the magnetic field and electrocoagulation, in the processes of drinking water preparation. The modification of the coagulant solution makes it possible to intensify w...
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Anna Winiarska-Mieczan, Malgorzata Kwiecien, Karolina Jachimowicz-Rogowska, Svitlana Kislova, Zvenyslava Zasadna and Dmytro Yanovych
The aim of the study was to determine the effect of Fe glycine chelate supplementation on the chemical composition and nutritional quality of breast meat from broiler chicken. The following parameters were assessed: fat content, cholesterol content, fatt...
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Bing Li, Hao Peng and Jing Guo
Phosphogypsum is a kind of solid waste produced in wet process of producing phosphoric acid, which affects the filtration rate and water content of phosphogypsum. The effects of single surfactant sodium dodecyl sulfate (SDS), sodium dodecylbenzene sulfon...
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Christopher Lee Augustin and David W. Franzen
Soybean (Glycine max L.) is a new cash crop grown in north central and northwestern North Dakota (ND). Soils and climate in these new soybean areas differ from current fertilizer guidelines. A three-year study to evaluate soybean fertility best managemen...
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Dimitris C. Tsamatsoulis, Christos A. Korologos and Dimitris V. Tsiftsoglou
This study aims to approximate the optimum sulfate content of cement, applying maximization of compressive strength as a criterion for cement produced in industrial mills. The design includes tests on four types of cement containing up to three main comp...
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Grzegorz Kulczycki, Elzbieta Sacala, Anna Koszelnik-Leszek and Lukasz Milo
The aim of the study was to compare sulfate fertilizers and mixtures of elemental sulfur (S0) and sulfate in terms of yield and nitrogen (N) and sulfur (S) status in perennial ryegrass. Mixtures of sulfate and S0 can reduce the consumption of sulfate alo...
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Chuansheng Li, Xiaofan Qi, Yu Wang, Qingjie Meng, Wenpeng Li, Lanyu Liu, Yuejun Zheng and Huqun Cui
Being a famous hometown of vegetables in China, Shouguang City has a long history of vegetable cultivation and is a comprehensive national commodity base for vegetables and fruits. In recent decades, with the expansion of agricultural production, the use...
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Matthew S. Sullivan, Mi G. Chorzepa, Hiwa Hamid, Stephan A. Durham and S. Sonny Kim
Metakaolin is the only major natural pozzolan to be specified for use as a supplementary cementitious material in the United States. As a result, the metakaolin market for concrete has grown dramatically in the past 20 years. As of now, the specification...
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Yifeng Yang, Jingshuai Luan, Jing Nie, Xin Zhang, Jiong Du, Gang Zhao, Lei Dong, Yong Fan, He Cui and Yubo Li
In the past, due to improper sludge treatment technology and the absence of treatment standards, some municipal sludge was simply dewatered and then sent to landfills, occupying a significant amount of land and posing a serious threat of secondary pollut...
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Youli Qiu, Yu Liu, Min Wu, Jie Li, Ruimin He, Chunming Hao, Xing Fan and Chaoxing Sun
The composition of emulsion is complex. In the process of coal mining, the emulsion required by the hydraulic equipment can enter the mine water through a variety of channels, thereby affecting the water quality of the mine. In this study, the mine water...
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Zeyu Li, Xiuzhi Shi and Xin Chen
It is important and difficult to improve the tensile strength of backfill material to ensure the stability of goafs. In this study, rice straw (RS) in fiber form is used to improve the tensile properties of cemented paste backfill (CPB). An orthogonal ex...
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György Pátzay, József Dobor, Emil Csonka, Gábor Lozsi, Ferenc Feil
Pág. 424 - 430
Borate ion exchange capacity of Purolite NRW600 strong base anion resin in hydroxide form and mixed bed NRW600+NRW100 ion exchange was investigated with static experiments. Anion exchange resin was saturated with 0.1?45 g/dm3 concentration boric aci...
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Vyacheslav Troyan,Nadiia Sova
Pág. 13 - 19
The paper reports results of examining the influence of modifier admixtures on the corrosion resistance of concrete for reinforced concrete sleepers based on the criteria of electric resistance, resistance to alkaline corrosion and corrosion due to the c...
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Pavlo Krivenko,Volodymyr Gots,Oleh Petropavlovskyi,Igor Rudenko,Oleksandr Konstantynovskyi,Artem Kovalchuk
Pág. 24 - 32
The essence of the problem related to proper deformations in alkali-activated cements (AAC) complicated with high content of gel-like hydrate formations was analyzed. Cement types diametrically opposite in their compositions and, accordingly, in the cont...
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Xiaomei Chen, Jiangang Qian and Xiaotian Hu
Cobalt-phosphorus (Co-P) alloy is a promising material for the replacement of traditional hard chromium alloy of high hardness. In this paper, the cobalt-phosphorus alloy layer with high phosphorus content was formed by electrodeposition in a cobalt sulf...
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Elisa S. Lemes, Lilian M. de Tunes, Andreia da S. Almeida, Geri E. Meneghello, Sandro de Oliveira, Marlove F. B. Muniz
Pág. 109 - 119
Seed coating is among the most potentially beneficial treatments to enhance seed performance, contributing to the improvement of crop stands due to its role in improved seedling development. Thus, micronutrients such as zinc exhibit potential for use in ...
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Ciencia e Investigación Agraria
Pág. 121 - 123
Seed coating is among the most potentially beneficial treatments to enhance seed performance, contributing to the improvement of crop stands due to its role in improved seedling development. Thus, micronutrients such as zinc exhibit potential for use in ...
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Juanjuan Li, Changnan Yang, Xuezhi Zhang, Shengbiao Wu, Hailong Chi, Xinjiang Zhang and Changzhou Wei
The cultivation of drip-irrigated rice has resulted in lower yields. However, the decrease in rice yield under drip irrigation and its relationship with the existing water and N regime have not been fully explained. Research and development of optimized ...
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Alexei Pervov and Dmitry Spitsov
Reverse osmosis is efficiently used for producing drinking water from groundwater sources containing dissolved impurities, including fluoride, ammonia, lithium, strontium, boron, arsenic, etc. The principal problems of utilizing reverse osmosis include s...
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