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Response on Uptake of Nutrients and on Grain Yield from Rice Husk Biochar Application on Oryza sativa L. Grown in a Low Yielding Granary Area of Tanjung Karang, Selangor, Malaysia Deniel Anak Sang; Rosenani Abu Bakar; Siti Hajar Ahmad; Osumanu Haruna Ahmed; Wan Asrina Wan Yahya; Khairuddin Abdul Rahim
Journal of Wetlands Environmental Management Vol 9, No 1 (2021): January-June, 2021
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (611.01 KB) | DOI: 10.20527/jwem.v9i1.255

Abstract

Rice (Oryza sativa L.) production plays a major role in enhancing food security in Malaysia. Lower rice yield and improper soil management practices have raised serious concerns about rice cultivation in Malaysia. The objective of this study was to examine the short-term effects of rice husk biochar (RHB) application on rice yields production on low yielding area for two crop cycles. RHB was applied at the rates of 0, 5, 10, and 20 Mg ha-1. Rice husk biochar was applied one week before rice seeds, of variety MR 263, were directly seeded. Results of the study showed that RHB significantly increased grain yield by 44% and 46% in first and second crop cycles, respectively, as compared to the control treatment. Likewise, RHB amended plots showed significant improvement of rice yield components, viz. productive tiller, panicle length, and weight per panicle, than those of the control plots in the first and second crop cycles. Furthermore, RHB significantly increased nitrogen (N), phosphorus (P) and potassium (K) uptake by 17%, 18%, 29%, respectively, in the first crop cycle, and 26%, 23%, 110%, respectively, in the second crop cycle. RHB application also significantly improved soil available P, exchangeable K and exchangeable Mg in the two crop cycles. Another interesting finding was that the use of RHB reduced soil total carbon loss by 4% to 12% compared with 19% by the control treatment. These findings suggest that RHB can potentially be used as a soil amendment to increase rice yield production, enhance soil nutrient availability and nutrient uptake, as well as reduce carbon losses especially during drought period.
Infuences of Rice Husk Biochar (RHB) on Rice Growth Performance and Fertilizer Nitrogen Recovery up to Maximum Tillering Stage Deniel Anak Sang; Rosenani Abu Bakar; Siti Hajar Ahmad; Khairudin Abdul Rahim
Journal of Wetlands Environmental Management Vol 6, No 1 (2018): January-June
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.107 KB) | DOI: 10.20527/jwem.v6i1.150

Abstract

A pot study was carried out to investigate the effects of rice husk biochar addition on rice growth performance and fertilizer nitrogen recovery. The biochar effect was studied by using 15N labelled fertilizer urea (10 atom% 15N), as isotopic tracer, until maximum tillering stage (75 days after sowing). Rice husk biochar (RHB) was applied at rates of 0, 5, 10 and 20 Mg ha-1 and laid in randomized complete block design with four replications. The result showed that biochar application significantly improved soil chemical properties (pH, total C, total N, and available P) compared to control treatment. Biochar addition increased number of tiller and root dry matter weight up to 4% and 35%, respectively, compared to un-amended pot. Likewise, application of biochar significantly increased N, P and K uptake by 3%, 19% and 33%, respectively, as compared to the nutrient uptake from the control treatment. Biochar treatment had no significant impact on fertilizer nitrogen recovery in aboveground biomass, in the range of 41% and 42%, in comparison to the control. However, nitrogen fertilizer recovery in soil significantly increased by 47% over the control at application rate of 20 Mg ha-1 RHB.  Increased fertilizer N recovery in soil possibly reduced N losses to the environment from volatilization and denitrification processes. Total 15N fertilizer recovery also found increase at highest application of RHB biochar with an increment of 16%. In general, addition of biochar appeared to enhance crop growth performance but its effect on fertilizer N recovery in plant requires further study up to maturity of rice plant.