Pertanika Journal of Tropical Agricultural Science
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Pertanika · Universiti Putra Malaysia Press

Pertanika Journal of Tropical Agricultural Science

Official journal of Universiti Putra Malaysia for peer-reviewed research across tropical agriculture and allied agricultural sciences.

e-ISSN 2231-8542 ISSN 1511-3701
Research article

Nutrient Content in Rice Husk Ash of Some Malaysian Rice Varieties

A.B. Hashim, H. Aminuddin and K.B. Siva

Keywordsrice husk ash, nutrient, variety, fertilizer
Article content

Abstract

Analysis performed on more than 60 samples f 10 different paddy varieties showed 21.33% o f the rough rice comprised rice husk, while 13% o f the husk constituted rice husk ash. The nutrient content o f rice husk ash was 80.26% silica, 0.38% phosphorus, 1.28% potassium, 0.21% magnesium and 0.56% calcium. Statistically, nutrient composition is significantly influenced by varietal differences. As a potential material for fertilizer use, the estimates o f total nutrient supplementation available from rice husk ash per annum are discussed.