scholarly journals Effects of poultry manure and cow dung on the physical and chemical properties of crude oil polluted soil

2010 ◽  
Vol 3 (2) ◽  
Author(s):  
M.O Onuh ◽  
D.K Madukwe ◽  
G.U Ohia
Keyword(s):  
Crude Oil ◽  
Poultry Manure ◽  
Chemical Properties ◽  
Polluted Soil ◽  
Cow Dung ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals Biochar, poultry manure and NPK fertilizer: sole and combine application effects on soil properties and ginger (Zingiber officinale Roscoe) performance in a tropical Alfisol

2020 ◽  
Vol 5 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Aruna Olasekan Adekiya ◽  
Taiwo Michael Agbede ◽  
Wutem Sunny Ejue ◽  
Christopher Muyiwa Aboyeji ◽  
Oluwagbenga Dunsin ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Properties ◽  
Poultry Manure ◽  
Chemical Properties ◽  
Soil Physical Properties ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Npk Fertilizer ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractBiochar has a low chemical composition and is recalcitrant to degradation. For good soil fertility and nutrient use efficiency of crops it becomes imperative that addition of a fast releasing nutrient source to biochar be sought. Therefore, studies were conducted in 2017 and 2018 to evaluate the effects of biochar with poultry manure (PM) and NPK fertilizer on soil properties, growth and yield of ginger. Treatments evaluated were: biochar applied alone at 15 t ha-1 , PM applied alone at 15 t ha-1, NPK fertilizer applied alone at 200 kg ha-1, biochar applied at 15 t ha-1 with poultry manure applied at 15 t ha-1 (B+PM), biochar applied at 15 t ha-1 with NPK fertilizer applied at 200 kg ha-1 (B+NPK) and a control with no amendment whatsoever. The experimental design was a randomized complete block design with three replications. Biochar, PM, NPK fertilizer alone or B+PM and B+NPK improved soil physical and chemical properties, growth and yield of ginger compared to no amendment (control). NPK fertilizer did not improve soil physical properties nor increased pH, OM, Ca and Mg significantly. B+PM and B+NPK improved soil physical and chemical properties, growth and ginger yield compared to their sole forms. Although B+PM had better soil physical properties, B+NPK increased yield and growth of ginger compared to B+PM. B+NPK increased the yield of ginger by 12.2% and 10.6% in 2017 and 2018, respectively compared with B+PM. B+NPK also increased the yield of ginger by 49.2% and 50.3% in 2017 and 2018, respectively compared to biochar alone. This was related to high presence of nutrients in B+NPK especially N and K which are important for ginger rhizome formation.

scholarly journals DENSITY AND VISCOSITY EQUATION OF BLEND OIL

2021 ◽  
Vol 2(73) (1) ◽  
pp. 90-99
Author(s):  
Renata Rădulescu ◽  
Timur Chiș
Keyword(s):  
Crude Oil ◽  
Numerical Models ◽  
Chemical Properties ◽  
Transport Systems ◽  
Physical And Chemical Properties ◽  
Mixing Rates ◽  
Physical And Chemical ◽  
And Storage ◽  
Optimal Mixing ◽  
And Chemical Properties

"Extracted oils and gases have different physical and chemical properties, depending on oil structures. Thus, it is beneficial to create mixtures of oils by combining cheaper crude oils with variants that have better properties (Brent type). This will result, in a reduced cost of acquisition. Mixing crude oil (obtaining blend crude oil) is a process in constant development, so that new ways for improving crude oil properties can be surfaced and to create new ways for transport and storage with lower costs. As an example, by mixing crude oil we can ensure viscosities and freezing conditions for certain transport systems. The aim of this paper is to present the techniques for mixing crude oil, the study of technologies, equipment needed for it and the numerical models for obtaining optimal mixing rates. "

scholarly journals Effects of four organic amendments on soil physiochemical properties and yield of maize (Zea mays) and cowpea (Vigna unguiculata) intercrop in Awka, southeastern Nigeria

Agro-Science ◽  
2021 ◽  
Vol 20 (2) ◽  
pp. 49-56
Author(s):  
A.O. Onunwa ◽  
C.J. Nwaiwu ◽  
J.E. Nwankwor ◽  
C.E. Emeh ◽  
C.O. Madueke ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Bulk Density ◽  
Soil Ph ◽  
Poultry Manure ◽  
Organic Amendments ◽  
Chemical Properties ◽  
Available Phosphorus ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Effects of four organic amendments on some soil physical and chemical properties were investigated in Awka, Anambra State in southeastern Nigeria. Over the years, use of synthetic materials in crop production has been a common practice globally. The attendant detrimental effects of the chemicals used in the formulation of these synthetics on animal and human health as well as the environment has made researchers to look out for a better agronomic practice that would not only improve productivity but at the same time sustain a healthy environment. Sole maize, sole cowpea and maize-cowpea intercrop (study area conventional practices) were planted using four soil organic amendments viz: cassava peel (CP), poultry manure (PM), pig waste (PW) and rice husk (RH) at the rate of 20 t ha–1 with the fifth as the control. The treatments were laid out in a 3 × 5 factorial in randomized complete block design and replicated four times. Data on the treatments’ effects on the selected soil physical properties (bulk density, total porosity, soil moisture) and chemical properties (soil pH, available phosphorus, cation exchange capacity (CEC), organic carbon, exchangeable bases and exchangeable acidity) were subjected to factorial analysis of variance using GenStat 2006 Edition. Results indicated that for sole maize, the amendments had significant effect onexchangeable Al3+and Na+; organic carbon, soil pH, available phosphorus and CEC but had no significant effect on Ca2+, H+, Mg2+ and K+ as compared to the control. For sole cowpea, compared to the plots with no amendment (control), all the chemical parameters analyzed differed significantly except organic carbon. Whereas, for maize-cowpea intercrop the treatments had no significant effect on Al3+, Na+, K+ and available phosphorus but differed significantly in exchangeable H+, Ca2+, Mg2+, organic carbon, soil pH, and CEC. There was a decrease in bulk density following the amendment. For sole maize, sole cowpea and maizecowpea intercrop; bulk density, total porosity and moisture content of the amended plots were significantly (p< 0.05) influenced. Organic amendments also significantly improved the growth and yield of maize and cowpea in both the sole and intercrop systems. Generally, poultry manure resulted in higher plant height,number of leaves and leaf area for maize; vine length, number of branches for cowpea as compared with other amendments. Hence, poultry manure was the most effective organic amendment in improving the soil physical and chemical properties as well as the growth and yield of cowpea and maize. Key words: Growth, maize-cowpea intercrop, soil physical and chemical properties, soil organic amendments

scholarly journals PERBAIKAN SIFAT FISIK DAN KIMIA TAILING MELALUI PEMBERIAN AMELIORAN BERBASIS BAHAN ORGANIK

EUGENIA ◽  
2018 ◽  
Vol 23 (3) ◽  
Author(s):  
T. D. Sondakh ◽  
D. M.F. Sumampow ◽  
M. G.M. Polii
Keyword(s):  
Rice Straw ◽  
Water Hyacinth ◽  
Sweet Corn ◽  
Chemical Properties ◽  
Chicken Manure ◽  
Cow Dung ◽  
Physical And Chemical Properties ◽  
C 50 ◽  
Physical And Chemical ◽  
And Chemical Properties

ABSTRACT A research Improvement on Physical and Chemical Properties  of Tailing Using Organic Matter as  Ameliorant. The experiment aims to study the effect of organic matter as an ameliorant on growth and yield of sweet corn,  and soil  properties of tailings, to design improvement in the physical and chemical fertility of tailings through the management of organic materials. The study used a Randomized Block Design consisting of 6 treatments. The treatments are: A = 100% water hyacinth, B = 50% water hyacinth + 50% chicken manure, C = 50% water hyacinth + 50% cow dung, D = 50% water hyacinth + 50% market waste, and E = 50% water hyacinth + 50% rice straw, and. F = 20% Water hyacinth + 20% cow dung + 20% Chicken manure + 20% market waste + 20% rice straw. Each treatment was repeated four times to obtain 24 pot experiments. Maize planted on the media as a remediator plant. Response variables observed, including: 1) physical andchemical properties of tailing before research, 2) physical and chemical properties of tailing after research, 3) plant height, 3) number of leaves, 4) length of cob, 5) diameter of cob, 6) weight of cob, measured at harvest time.. The results showed ameliorant-based organic materials can improve the physical and chemical soil tailings.Organic materials 20% Water hyacinth + 20% cow dung + 20% Chicken Pump + 20% market waste + 20% rice straw increase plant height and number of sweet corn crops.Organic ingredients 50% Water hyacinth + 50% chicken droppings give the best sweet corn yield.Keywords:improvement, physical and chemical, tailing,  ameliorant  ABSTRAK Penelitian Perbaikan Sifat Fisik dan Kimia dari Tailing Melalui Pemberian Amelioran Berbasis Bahan Organik bertujuan untuk mempelajari pengaruh bahan organik sebagai amelioran terhadap pertumbuhan dan hasil jagung manis, serta untuk merancang perbaikan kesuburan fisik dan kimia tailing melalui pengelolaan bahan organik. Penelitian ini menggunakan Rancangan Acak Kelompok yang terdiri dari 6 perlakuan. Perlakuan tersebut adalah: A = 100% enceng gondok, B = 50% eceng gondok + 50% kotoran ayam, C = 50% eceng gondok + 50% kotoran sapi, D = 50% enceng gondok + 50% limbah pasar, dan E = 50% eceng gondok + 50% jerami padi, dan. F = 20% Eceng gondok + 20% kotoran sapi + 20% Kotoran ayam + 20% limbah pasar + 20% jerami padi. Setiap perlakuan diulang empat kali  sehingga diperoleh 24 percobaan pot. Tanaman jagung manis sebagai tanaman remediator. Variabel respon yang diamati meliputi: 1) sifat fisik dan kimia sebelum penelitian, 2) sifat fisik dan kimia tailing setelah penelitian, 3) tinggi tanaman, 3) jumlah daun, 4) panjang tongkol, 5) diameter tongkol, 6) bobot tongkol, diukur pada saat panen. Hasil penelitian menunjukkan bahwa bahwa bahan organik berbasis amelioran dapat memperbaiki fisik dan kimia tailing. Perlakuan B adalah 50% eceng gondok + 50% pupuk kandang ayam dan perlakuan F (20% enceng gondok + 20% kotoran sapi + 20% kotoran ayam + 20% limbah pasar + jerami padi 20%) memberikan hasil jagung dan jagung terbaik. Amelioran berdasarkan bahan organik meningkatkan kandungan N, P, dan K dan memperbaiki sifat fisik tailing.Kata kunci : perbaikan, sifat fisik dan kimia, tailing, amelioran

The Influence of Chemical Dispersants on the Properties of Crude Oil

2012 ◽  
Vol 608-609 ◽  
pp. 1387-1390
Author(s):  
Juan Sun ◽  
Dong Feng Zhao ◽  
Jing Sun ◽  
Chao Cheng Zhao
Keyword(s):  
Crude Oil ◽  
Heavy Oil ◽  
Aquatic Environment ◽  
Oil Spills ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Chemical Dispersant ◽  
Physical And Chemical ◽  
Spilled Oil ◽  
And Chemical Properties

After oil spills in the coastal aquatic environment, the physical and chemical properties of the spilled oil may change under the influence of the chemical dispersant and form emulsions in the water. This paper presents the results of a laboratory study on the influence of chemical dispersant to the properties of crude oil. The experiments were conducted using two widely-used surfactant GM-2 and BH-X, two crude oil samples and artificial seawater. Density, viscosity and emulsification rate of crude oil with different amounts of dispersant added was measured. The results show that viscosity of the crude oil was highly influenced by the chemical dispersant. The maximum emulsification rate of the Saudi Arabian middle crude oil was 54.1% and 57.4% with the dispersant to oil ratio above 0.8, whereas the emulsification rate of the heavy oil was significantly lower than the middle oil with both of the two types of chemical dispersant.

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

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