scholarly journals Influence of rice hull ash and levels of p and k on growth performance of rice grown in sandy loam soils of Chikkamangaluru district of Karnataka

2020 ◽  
Vol 8 (5) ◽  
pp. 1308-1311
Author(s):  
Ajit N Puri ◽  
BC Dhananjaya ◽  
GN Thippeshappa ◽  
M Dinesh Kumar ◽  
C Sunil ◽  
...  
2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
D. Venkatakrishnan ◽  
V. Arulkumar ◽  
P. Kamalakannan ◽  
V. Sathyaseelan

Radish is a unique root vegetable cultivated in India for its tender roots, consumed as a salad or cooked vegetable. The soil was collected from Vallampadugai, Chidambaram taluk farmer’s field having sandy loam soil texture, pH 7.0, EC 1.37 dSm-1, (textural class: Typic ustifluvents). A pot experiment was executed out in the pot culture yard of Annamalai University. Organic sources viz., FYM (12.5 and 25 t ha-1), non-conventional organic sources viz., household solid waste compost (12.5 and 25 t ha-1) and industrial refuse viz., rice hull ash (5 and 10 t ha -1) and bagasse ash (5 and 10 t ha-1) with 100% RDF and 75% RDF. There were 9 treatment combinations replicated thrice in CRD. The results showed that maximum root yield (845.9g pot-1) and shoot yield (501.9 g pot -1) were recorded in treatment, receiving 75% RDF + FYM @ 25 t ha-1 (T5). The highest chlorophyll content (1.38 mg g-1), total carbohydrates (4.76%), ascorbic acid (15.9 mg kg-1), and crude protein (0.85%) were registered in T5 (75% RDF+FYM @ 25 t ha-1)


Waterlines ◽  
1983 ◽  
Vol 2 (2) ◽  
pp. 21-23 ◽  
Author(s):  
Barnes ◽  
Mampitiyarachichi

2016 ◽  
Vol 8 (6) ◽  
pp. 2131-2140 ◽  
Author(s):  
Ailar Hajimohammadi ◽  
Jannie S. J. van Deventer

2016 ◽  
Vol 864 ◽  
pp. 112-116
Author(s):  
Rinlee Butch M. Cervera ◽  
Emie A. Salamangkit-Mirasol

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.


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

2005 ◽  
Vol 8 (3) ◽  
pp. 74-80
Author(s):  
Sriyanti Sriyanti ◽  
Taslimah Taslimah ◽  
Nuryono Nuryono ◽  
Narsito Narsito

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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