Abstract
The current study was aimed to determine the effect of ameliorant on Pak choi (Brassica rapa chinensis) productivity, CO2 emissions, and factors affecting the rate of CO2 emission. The study was carried out using a non-factorial completely randomized design with seven treatments. The imposed treatment are without ameliorant (control), 10, 20, 30 ton ha-1 chicken manure, 4 ton ha-1 Dolomite + Chicken Manure @ 10 ton ha-1, Dolomite 4 ton ha-1 + Chicken Manure @ 20 ton ha-1 and Dolomite 4 ton ha-1 + Chicken Manure @ 30 ton ha-1. The variables observed are the chemical properties of peat soil, fresh and dry weight of pak choi, CO2 emissions, and factors that affect CO2 emissions. The results of the study revealed that the combination of Dolomite and chicken manure has a significant effect on the studied parameters and the combination of 4 ton ha-1 dolomite + 30 ton ha-1 chicken manure had the highest pH change (average of 6.36), highest productivity, and CO2 emission (344.42 mg cm-2hr-1). Results of the study can be concluded that Dolomite and chicken manure has a significant effect on the various growth parameters of B. rapa chinensis and the properties of the peat soil.
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