The oil palm is ones of plant producing the highest vegetable oil per ha This superior of oil palm caused a lot of corporate always increase area planting . Planting of oil palm need a best planning not only in technically aspect but also in preparation of budged c. Detail in costing based on activity in the field involve from land clearing , planting , maintenance until harvesting.
The following illustration of cost details for corporate to prepare budgeting in oil palm activity . Each of work must have standard output for labor or machinery in order to be able to compare between actual in field and standard.
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1. Nursery establishment and management
2. Plantation development
3. Plantation establisment and management
4. Site inspection / assesment
Land application on oil palm plantation
Liquid waste from mill can be used as fertilizer substitution in the field. Application of liquid waste can reduce cost of liquid waste management and automatically as fertilizer. Investment of land application is relative costly but it will be followed the increasing yield and reducing cost of manuring
Design of land application as follows Size of bed is length 4 m, width 2 m , depth 0.4 m. Requirement bed per ha is length 500 m , width 2 m. Contain waste per ha = 0.25 m x 2 m x 500 m = 250 m3. Rotation per year is 3 times . Dosage per ha land application is 750 tons per year
Liquid waste contain N P K and Mg having opportunity to be used to convert as fertilizer, other advantage also giving additional land humidity and improving soil conditional.
Calculation Land Application 750 ton per year per ha can reduce fertilizes as follows
Contain N in liquid waste ( LW ) 454 ppm= 454 ppm x 750 ton = 340.5 kg . Contain N in urea 46% . LW as N substitution = 340.5 kg : 0.46 = 740 kg per ha or 5.4 kg per tree urea
Contain P in LW 170 ppm = 170 ppm x 750 ton = 128 kg . Contain P in TSP = 45 %
LW as P substitution = 128 kg : 0.45 = 284 kg per ha or 2.1 kg TSP per tree
Contain K in LW 1641 ppm = 1641 ppm x 750 ton = 1231 kg. Contain K in KCL = 60 %
LW as K substitution = 1231 kg : 0.60 = 2052 kg per ha or 15 kg KCL per tree
Contain Mg in LW 334 ppm = 334 ppm x 750 ton = 250 kg
LW as Mg substitution = 250 kg : 0.27 = 926 kg per ha or 6.8 kg Kies per ha
Bed should be maintained periodically, edge of bed cleaned, solid in bed scooped and put in along edge of bed. After cleaning depth of bed should be 40 cm
Empty Bunch Application
Empty bunch ( EB ) have a mineral useful to help plant growth process so it have potential as organic fertilizer. EB which be used should be fresh direct transported from mill, should be retailed to the field immediately. Dosage EB per ha 30 tons
The following calculation value N , P , K and Mg
Contain N from EB 0.9 % = 0.9 % x 30 ton = 270 kg .EB as substitution N in urea = 270 kg : 0.46 = 587 kg /ha . Dosage EB equivalent 4.3 kg urea per tree
Contain P 0.11 % = 0.11 % x 30 ton = 33 kg . EB as substitution P in TSP = 33 kg : 0.46 = 71,7 kg/ha
Dosage EB equivalent 0.5 kg TSP per tree
Contain K 2.4 % = 2.4 % x 30 ton = 720 kg . EB as substitution K in Mop = 720 kg :0.6 = 1200 kg / ha.. Dosage EB equivalent 8.8 kg Mop per tree
Contain Mg 0.17% = 0.17 % x 30 ton = 51 kg . EB as substitution Mg in Kies = 51 kg : 0.27 = 190 kg / ha . Dosage EB equivalent 1.4 kg Kieserit per tree