Application of Bokashi Botom Ash for Increasing Upland Rice Yield and Decreasing Grain Pb Content in Vitric Hapludans

Nunung Sondari,Ervina Siti Nurkhalidah

doi:10.5400/jts.2012.v17i2.157-163

Abstract

Greenhouse experiment was conducted at Agricultural Faculty of Winaya Mukti University Tanjungsari SumedangRegency, from May to October 2009. The objective of this experiment was to study the effect of bokashi bottom ashon the growth, yield, and Pb content of upland rice. The experiment used a Randomized completely Block Design(RBD) which consisted of five treatments and five replications. The treatments were level of bokashi bottom ash i.e.0, 5, 10, 15, and 20 Mg ha-1. The results showed that the application of bokashi bottom ash increased the growth andyield of upland rice of Situbagendit variety except plant height at age of 21 days after seedling (DAS). Application15 Mg ha -1 of bokashi bottom ash gave the best effect to the plant height, number of leaves, number of tillers andshoot/root ratio, while applications of 10, 15 and 20 Mg ha -1 increased number of productive tillers, amount of filledgrains, and weight of grains. Bokashi bottom ash did not affect the heavy metal content of upland rice grain ofSitubagendit variety.[How to Cite: Sondari N and ES Nurkhalidah. 2012. Application of Bokashi Botom Ash for Increasing Upland Rice Yield and Decreasing Grain Pb Content in Vitric Hapludans. J Trop Soils 17 (2) : 157-163. Doi: 10.5400/jts.2012.17.2.157] [Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.2.157]

Highlights

The utilization of coal combustion waste is beneficial to increase the agricultural productivity
Upland rice seed was certified Situbagendit variety and bottom ash bokashi of coal combustion waste was taken from a textile factory in West Java
The application of bokashi bottom ash for upland paddy rice reached optimum plant height was at the rate of 15 Mg ha-1

Summary

Introduction

The utilization of coal combustion waste is beneficial to increase the agricultural productivity. Bottom ash is one of the coal combustion waste. In America and India, bottom ash has been utilized as an ameliorant (a substance to make the marginal soils better) (Kishor et al 2010; Sondari 2005; Stevens and Dunn 2004). Kumar et al (2000) reported that the ash from the residual burnt coal can be utilized as a soil ameliorant for subtropical plants such as oats, wheat, and barley. Bokashi bottom ash as a solid organic fertilizer is made from mixed raw materials fermentation which are 50% bottom ash, 20% rice straw, 20% chicken manure, 10% bran, Effective Microorganism (EM4), molasses, and water. Bokashi bottom ash can be used as a solid organic fertilizer after 14 days of fermentation

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Conclusion