Effect of rice hull ash silicon on rice seedling growth

1997 ◽  
Vol 20 (1) ◽  
pp. 195-201 ◽  
Author(s):  
K. R. Sistani ◽  
N. K. Savant ◽  
K. C. Reddy
Keyword(s):  
Seedling Growth ◽  
Rice Seedling ◽  
Rice Hull ◽  
Rice Hull Ash

scholarly journals Effect of Different Media on Germination and Seedlings Performance of Chili Pepper (Capsicum annum)

2020 ◽  
pp. 67-75
Author(s):  
P. D. Kaledzi ◽  
P. K. Tandoh ◽  
S. Asana
Keyword(s):  
Plant Height ◽  
Seedling Growth ◽  
Block Design ◽  
Germination Percentage ◽  
Chili Pepper ◽  
Rice Hull ◽  
Rice Hull Ash ◽  
River Sand ◽  
Kwame Nkrumah ◽  
Number Of Leaves

The production of vegetable seedlings is an important business for some farmers in most parts of the world with poor media being a major constraint. An experiment was conducted to investigate the effect of different media on germination and nursery performance of chili pepper at the Department of Horticulture, Kwame Nkrumah University of science and Technology (KNUST). A Randomized Complete Block design with six treatments and three replications was used in the study. Media treatments were used either alone or in combination and they were: topsoil only, rice hull ash only, rabbit waste only, topsoil and rice hull ash (1:1), topsoil and rabbit waste (1:1) and topsoil and river sand (1:1). There were significant differences in germination percentage, seedling height, number of leaves and stem girth as function of the media treatments. The different media however did not affect days to 50% germination significantly. Comparatively, the highest and the lowest germination percentages (77.50% and 62.00%) were obtained by nursing seeds in the mixture of topsoil and rice hull ash as well as rabbit waste only respectively. In terms of growth characteristics, plant height and number of leaves were highest in seedlings nursed in topsoil and rice hull ash mixture (18.36 cm and 13.23 cm) respectively at the end of the study period. The highest stem girth was seedlings nursed in topsoil (3.129 mm) at the end of the experiment. Plants nursed in rabbit waste only had the lowest growth performance in terms of plant height (2.75 cm), number of leaves (4.50) and stem girth (1.27 mm) at the end of the experiment. Growth medium consisting of a mixture of proportion of topsoil and rice hull ash is therefore recommended for growing chili pepper seedlings since this combination improved both germination and subsequent growth as compared to the other media used in the experiment. Rice hull ash is not recommended to be used alone in raising chili pepper seedlings since it has a high pH which decreases seedling growth. Partially decomposed rabbit waste is also not suitable to be used as nursery medium because it retards seedling growth.

Water filtration using rice hull ash

Waterlines ◽  
1983 ◽  
Vol 2 (2) ◽  
pp. 21-23 ◽  
Author(s):  
Barnes ◽  
Mampitiyarachichi
Keyword(s):  
Water Filtration ◽  
Rice Hull ◽  
Rice Hull Ash

scholarly journals Solid Reactant-Based Geopolymers from Rice Hull Ash and Sodium Aluminate

2016 ◽  
Vol 8 (6) ◽  
pp. 2131-2140 ◽  
Author(s):  
Ailar Hajimohammadi ◽  
Jannie S. J. van Deventer
Keyword(s):  
Sodium Aluminate ◽  
Rice Hull ◽  
Rice Hull Ash ◽  
Solid Reactant

Corrigendum to “Bioaccumulation of cadmium by Enterobacter sp. and enhancement of rice seedling growth under cadmium stress” [Ecotoxicol. Environ. Saf. 156 (2018) 183–196]

2018 ◽  
Vol 165 ◽  
pp. 672-673
Author(s):  
Soumik Mitra ◽  
Krishnendu Pramanik ◽  
Anumita Sarkar ◽  
Pallab Kumar Ghosh ◽  
Tithi Soren ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Cadmium Stress ◽  
Rice Seedling

Preparation of Amorphous Nanosilica from Philippine Waste Rice Hull via Acid Precipitation Method

2016 ◽  
Vol 864 ◽  
pp. 112-116
Author(s):  
Rinlee Butch M. Cervera ◽  
Emie A. Salamangkit-Mirasol
Keyword(s):  
Electron Microscopy ◽  
Low Cost ◽  
Agricultural Waste ◽  
Acid Precipitation ◽  
Particle Size Analysis ◽  
Precipitation Method ◽  
Rice Hull ◽  
Size Analysis ◽  
Rice Hull Ash ◽  
Transmission Electron

Rice hull or rice husk (RH) is an agricultural waste obtained from milling rice grains. Since RH has no commercial value and is difficult to use in agriculture, its volume is often reduced through open field burning which is an environmental hazard. In this study, amorphous nanosilica from Philippine waste RH was prepared via acid precipitation method. The synthesized samples were fully characterized for its microstructural properties. X-ray diffraction pattern reveals that the structure of the prepared sample is amorphous in nature while Fourier transform infrared spectrum showed the different vibration bands of the synthesized sample. Scanning electron microscopy (SEM) and particle size analysis (PSA) confirmed the presence of agglomerated silica particles. On the other hand, transmission electron microscopy (TEM) revealed an amorphous sample with grain sizes of about 5 to 20 nanometer range and has about 95 % purity according to EDS analyses. The elemental mapping also suggests that leaching of rice hull ash effectively removed the metallic impurity such as potassium element in the material. Hence, amorphous nanosilica was successfully prepared via a low-cost acid precipitation method from Philippine waste rice hull.

Performance and Quality in Old Laying Hens Fed Dietary Silicon Extracted from Rice Hull Ash

2018 ◽  
Vol 13 (2) ◽  
pp. 175-179
Author(s):  
Tossaporn Incharoen ◽  
Pichit Wonnakom ◽  
Asad Ali Khaskheli
Keyword(s):  
Laying Hens ◽  
Rice Hull ◽  
Rice Hull Ash

scholarly journals Pengaruh Keasaman Medium dan Imobilisasi Gugus Organik pada Karakter Silika Gel dari Abu Sekam Padi

2005 ◽  
Vol 8 (3) ◽  
pp. 74-80
Author(s):  
Sriyanti Sriyanti ◽  
Taslimah Taslimah ◽  
Nuryono Nuryono ◽  
Narsito Narsito
Keyword(s):  
Sodium Silicate ◽  
Silica Gel ◽  
Sodium Silicate Solution ◽  
Thiol Group ◽  
Silicate Solution ◽  
Rice Hull ◽  
Amino Group ◽  
Rice Hull Ash ◽  
Host Matrix ◽  
Medium Acidity

Silica gel is well known as a material that may be used as adsorbent, host matrix for catalyst, etc. Hence, synthesis of silica gel from rice hull ash has been done by evaluation of the effect of medium acidity and organic group immobilized in the snythesis of silica gel.Synthesis of silica gel was done by adding sodium silicate solution from rice hull ash to hydrochloric acid until pH 3, 5 and 7. Immobilization of thiol group and amino group in silica was done by adding 3-mercaptopropyltrimethoxysilane or 3-aminopropyl-trimethoxysilane to sodium silicate solution and hydrochloride acid solution until pH: 7. The products were characterized by X-ray deffractometer and FTIR Spectroscopy.Results showed that porousitas of silica increased with increasing medium acidity ( decreasing pH medium).Immobilization thiol or amino group in silica added a functional group on silica but did not destroy primary structure of silica gel.Key Words: Silica Gel, Rice Hull Ash, 3-mercaptopropyltrimethoxysilane, 3-aminopropyl-trimethoxysilane.

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