RDE Abstract of Completed Research
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Sugar and Co-Products Utilization / Filter
Cake
Efficacy trial of CAC-bioorganic fertilizer (SRA technology) on sugarcane. Ma. Lourdes I. Dormido, Ma. Lourdes T. Escarrilla, Augusto Latiza, Lerma Lanzar, Floro Raymundo, Nelly D. Gaston, Corazon Pahilanga and SRA-CAC BOF Team
Efficacy trial of CAC-bioorganic fertilizer (SRA Technology) on sugarcane ratoonMa. Lourdes I. Dormido, Ma. Lourdes T. Escarrilla, Corazon H. Philanga, Augusto S. Latiza, Nelly D. Gaston and CAC-BOF Team
Evaluation of wax and phosphorus content of filter cakeNelsie Grace E. Gela, Dida V. Gatanela, Dorothy B. Rodrigo, and Ma. Lourdes T. Escarrilla
An experiment was conducted to evaluate the efficacy of Central Azucarera de La Carlota Bioorganic Fertilizer (SRA Technology) on sugarcane. Nine (9) treatments were laid out on Guimblan clay soil at Brgy. Najalin, La Carlota City in Randomized Complete Block Design (RCBD) replicated three times (3x) from March 2000 to February 2001.
Four (4) tons CAC-BOF combined with the recommended rate (175 kg N- 25 kg P2O5 - O K2O) gave the significantly highest cane tonnage of 93.30 TC/Ha. This was statistically comparable to ½ RR + 1.5 tons BOF/Ha and ½ RR.
One half ½ ton – two (2) tons/Ha BOF added to ½ RR resulted to higher tonnage compared to RR.
Four (4) tons CAC-BOF combined with the recommended rate significantly increased LKg/Ha by as much as 83 LKg/Ha as compared to RR alone. CAC-BOF at 1.0-2.0 tons/Ha in combination with ½ RR gave a significant increase in LKg/Ha which ranged from 38.33 – 78.33 LKg/Ha as compared to RR.
The highest net income was observed in Treatment 5 (1/2 RR + 1.5 tons BOF/Ha) while the highest return on investment was noted in Treatment 3 (1/2 recommended rate).
This study was conducted to determine the efficacy of Bioorganic Fertilizer produced by Central Azucarera de La Carlota from sugar by-products using SRA Technology. The field experiment that was planted on a Guimbalaon clay soil in March 2000 at Brgy. Najalin, La Carlota City and harvested in February 2001 was continued to the first ratoon, there were nine treatments laid out in Randomized Complete Block Design (RCBD). The experiment was conducted on Phil 8477 ratoon and harvested in January 2002.
The significantly highest cane tonnage was observed in treatment 9 (recommended rate of 175 kg N; 25 kg P2O5; 0 K2O + 4.0 tons BOF/Ha) followed by treatment 5 (1/2 recommended rate + 1.5 tons BOF/Ha). All treatments with BOF in combination with ½ recommended rate (T4, T5, T6, and T7) produced higher tonnage and LKg/Ha as compared to Treatment 2 (full recommended rate of inorganic fertilizer; 0 BOF).
Cane yield and rendement data obtained from the sugarcane ratoon efficacy trial were observed to be consistent with data obtained from the sugarcane plant efficacy trial.
The highest net income and return on investment (ROI) were observed in treatment 5 (1/2 recommended rate + 1.5 tons BOF/Ha). Second highest net income was observed in T9 (recommended rate + 4.0 tons BOF) and next highest ROI was noted in T7 (1/2 recommended rate + 0.5 ton BOF/Ha).
The statistically lowest tonnage and sugar yield were observed in T1 (0 NPK and 0 BOF) and T8 (4.0 tons BOF alone).
The SRA recommended rate of inorganic fertilizer were based on soil analysis of sample from the test site.
The study conducted to produce in laboratory scale crude cane wax which was obtained from filter cake by continuous extraction method using both hexane and petroleum ether. Filter cake subjected to solvent extraction with hexane was observed to produce a higher percentage of cane wax (9%) compared to solvent extraction with petroleum ether (7%). Fresh filter cake was observed to yield higher amount of cane wax compared to stored filter cake.
Physical and chemical properties of cane wax obtained from this study were found to be similar to Carnauba and some commercial waxes.
The phosphorus content of dewaxed filter cake was observed to be 1-2% higher than untreated filter cake.
