Effect of poultry litter Biochar Amendment on Phosphorus Leaching in tropical clay soil

Lai, Seit Nee (2015) Effect of poultry litter Biochar Amendment on Phosphorus Leaching in tropical clay soil. Universiti Malaysia Sabah. (Unpublished)


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This experiment was carried out at Universiti Malaysia Sabah in the Soil Science Laboratory of the Faculty of Sustainable Agriculture Sandakan, Sabah. The objectives of this study were to evaluate the effects of poultry litter biochar (PLB) on phosphorus (P) leaching, pH, and moistur ne content in tropical clay soil. The experiment was carried out for 2 months starting from 1st of September 2014 to 1st of November 2014. Factorial completely randomize design (CRD) with different PLB and TSP fertilizer rates were used as the factors. In the 1st experiment which was to test for the phosphorus leaching and pH, 0, 10, and 20 % W/Wsoil PLB in combination with 0, 30, and 60 mg kg-1 TSP were used for the 9 different treatment combinations, each of which was mixed with 10 g of tropical clay soil. These treatments were leached with 100 ml rain water collected beforehand for 2 weeks in leaching columns. In this experiment, there was significant interaction between TSP and PLB over time of leaching on phosphorus leaching and also on soil pH. The results showed that with increased application of PLB and TSP rates, more phosphorus was leached out from the soil. Soil treated with 20 % PLB and 60 mg kg-1 resulted in the highest amount of phosphorus leached while 0 % PLB and 0 mg kg-1 resulted in the lowest amount of phosphorus leached. On the other hand, PLB increased the pH and 20 % PLB treatment resulted in the highest pH readings while 0 % PLB treatment resulted in the lowest pH readings. 2nd experiment was conducted to test the effect of PLB on soil moisture retention. In this experiment, same rates of PLB were used to form 3 different treatments and each treatment was added to 100 g of the tropical clay soil in leaching column and were leached for 2 days with 200 ml rain water. The results showed that PLB significantly increased the soil moisture content. The more PLB added, the higher the soil moisture retention. In this experiment, 20 % PLB treatment had resulted in the highest soil moisture content while 0 % PLB treatment showed the lowest soil moisture content.

Item Type: Academic Exercise
Uncontrolled Keywords: Rain water, TSP , Soil Moisture
Subjects: S Agriculture > SB Plant culture
Divisions: FACULTY > Faculty of Sustainable Agriculture
Date Deposited: 05 Jul 2017 01:59
Last Modified: 13 Oct 2017 07:56
URI: http://eprints.ums.edu.my/id/eprint/17106

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