scholarly journals Physical and Chemical Properties of Water Hyacinth (Eichhornia crassipes) as a Sustainable Biofuel Feedstock

2019 ◽  
Vol 515 ◽  
pp. 012070 ◽  
Author(s):  
Sukarni Sukarni ◽  
Yahya Zakaria ◽  
Sumarli Sumarli ◽  
Retno Wulandari ◽  
Avita Ayu Permanasari ◽  
...  
Keyword(s):  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Biofuel Feedstock ◽  
Physical And Chemical ◽  
And Chemical Properties

The comparison of rapeseeds’ oils from hybrid and open-pollinated varieties by their heating values in the aspect of Diesel utilization

2010 ◽  
Vol 1 (1) ◽  
pp. 157-161
Author(s):  
E. Sarkozi ◽  
L. Janosi
Keyword(s):  
Energy Content ◽  
Methyl Esters ◽  
Research Work ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Heating Value ◽  
Biofuel Feedstock ◽  
Physical And Chemical ◽  
And Chemical Properties

The rape is one of the suitable plant species for biofuel feedstock in Hungary. Currently there are over 100 admitted rape sorts recorded in Hungary and their oils’ application as biodiesel proposes new aspects of evaluation. From references it is noticeable that there are differences in the physical and chemical properties of the various rape sorts’ oils and rapeseed-methyl-esters. Our aim is to analyze the differences in the quality of the various rape sorts’ oils and to determine the most appropriate rape sort in the viewpoint of technical utilization. In the course of present research work we have measured the heating values of 21 various rapesorts’ oils -12 from open-pollinated varieties and 9 from hybrids- and examined the differences between them. The outcome values dispersed in the range of the heating values found in the references, but the differences between them are less then the predicted, the variance and the coefficient of variation are reasonably slight, so the examined rape sorts’ oils are similar in the viewpoint of the heating value. Furthermore, the energy content of the rapeseed oils is independent of the type (hybrid or open-pollinated variety) of the plant.

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

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.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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