Skripsi
PERBANDINGAN HASIL ANALISIS PH DAN KEBUTUHAN KAPUR DENGAN METODE PUTR DAN ANALISIS LABORATORIUM PADA TANAH RAWA LEBAK DI DESA MEDASARI
Lebak swamp land has great potential for agricultural development, but also faces various challenges, one of which is the problem of soil acidity. Soil acidity is one of the major obstacles to the utilisation of lebak swamp land. A common method used to overcome this is liming. Determination of lime dosage can be done by knowing the results of soil pH and Al exchangeable analysis tests and can practically use PUTR (Swamp Soil Test Tool). This research aims to determine the level of acidity of the lebak swamp soil and determine the appropriate liming dose based on the results of laboratory analysis and the PUTR method. This research used a detailed survey method assisted by a 1:10,000 scale working map covering an area of 10 hectares with 10 representative samples. The results showed that soil acidity was in the very acidic to acidic category. Based on laboratory analysis, the soil pH was in the range of 3.87-5.22, while the results of the PUTR test found that the soil pH of all plots was 3,00-4,00. Calcite lime CaCO₃ recommendations based on Al-dd calculations range from 0.65 tonnes ha-1 to 14.95 tonnes ha-1 with an average of 4.01 tonnes ha-1 and dolomite lime CaMg(CO3)2 of 0.64 to 14.8 tonnes ha-1 with an average of 3.97 tonnes ha-1. Based on the soil test using PUTR, it was found that the need for calcite lime CaCO₃ at the research site was 0.5 tonnes ha-1 and 0.49 tonnes ha-1 for dolomite lime CaMg(CO3)2.
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