| dc.creator | PIPOC 2007 International Palm Oil Congress Palm oil: Empowering change
August 26-30, 2007 :
Kuala Lumpur :
52116. | |
| dc.creator | Abdul Rashid Mohamed Shariff
47065. | |
| dc.creator | Ahmad Fikri Abdullah
47066. | |
| dc.creator | Chin Ket Shung
47067. | |
| dc.creator | Laili Nordin
46271. | |
| dc.creator | Mohamad Radzali Mispan
47068. | |
| dc.creator | Rohaya Mohamed Halim
42166. | |
| dc.creator | Shattri Mansor
47069. | |
| dc.creator | Malaysian Palm Oil Board, MPOB
50178. | |
| dc.date | 2007. | |
| dc.description | Information and Communication Technology (ICT) is rapidly influencing management activities in oil palm plantations. The introduction of Geographic Information System (GIS), Global Positioning System (GPS), Decision Support System (DSS) and Remote Sensing (RS) in oil palm plantation management has opened the opportunity for practicing Precision Agriculture (PA) or Variable-rate Technology (VRT). Precision agriculture uses precise information of location and agronomic conditions of the oil palm field and their relationships with growth and yield to increase production by accurate and efficient use of inputs, sustaining soil fertility and realizing the potential oil palm yield. Presently, the implementation of PA in oil palm plantation is being carried out at various stages, concentrating on fertilizer requirements. Initial work on PA for oil palm focuses on building up of plantation databases using GIS, GPS, and RS technologies. There are many other factors such as size of management unit, intensity of soil, foliar and yield sampling, use of variable rate machineries and methods of analyzing economic issues that need to be understood and further developed before full PA management systems and techniques can be successfully adopted in oil palm plantations. Oil palm yields are significantly correlated with leaf nutrient content, and foliar analysis has been widely used to determine oil palm fertility status and nutrients requirements. Many methods of leaf sampling, analysis and interpretation have been devised and adopted by the industry in order to develop the best fertiliser recommendation system for the oil palm. Currently, GIS, GPS and DSS technologies are being used to assist in determining oil palm nutrient and fertiliser requirements. This combined approach is able to create a variable-rate fertiliser map to guide better fertiliser application in the field. A trial using PA technologies and leaf analysis for fertiliser recommendation has been set up at Ulu Bernam Estate, Telok Intan, Perak. The site, on Sabrang series soil (Sulfic Endoaquepts) with a cambered field system, was replanted with 3rd generation palms in 1996. The 40 hectare site was divided into 104 plots (0.36 ha plot-1), each with 49 palms. Oil palm yields and leaf samples were collected and analysed on a plot basis. The Oil Palm Efficient Nutrient System (OPENS) developed by Malaysian Palm Oil Board (MPOB) was applied to the leaf analysis data to determine the maximum site yield potential and the most limiting leaf nutrient of each plot. Yield and nutrient maps were created using GIS interpolator. The variable-rate fertiliser map was created by overlaying the yield map and the nutrient maps. The results of this study indicated that combining the PA technologies with the present methods of oil palm fertiliser recommendation could provide more precise fertiliser management for the oil palm. One of the important components of precision agriculture is a variable-rate applicator. The applicator is used to apply the fertiliser based on the spatial information of the variable-rate fertiliser map. A pilot scale evaluation study was conducted on a variable-rate applicator at MPOB Research Station, Bangi, Selangor. Two types of compound fertiliser (compact and granular) and three rates of application (200, 500 and 800 kg ha-1) were evaluated. A basic GPS receiver, portable personal computer and calibrator were used to vary the fertiliser rate based on the variable-rate fertiliser map. Results of the study showed that the variable-rate fertiliser applicator hardware and software used in this study successfully executed the variable-rate fertiliser application. For the three application rates tested, 200, 500, and 800 kg ha-1, the applied rate errors for the compact (MPOB F1) and granular (MPOB F2) fertilisers were 12.1 %, 0.2 % and 29.3 %; and 11.2 %, 0.3 % and 3.3 % respectively. The minimum and maximum spatial error of the GPS receiver readings observed for the fertiliser placements were 0.33 and 9.08 meters respectively. | |
| dc.description | Incluye referencias bibliográficas. | |
| dc.description | Information and Communication Technology (ICT) is rapidly influencing management activities in oil palm plantations. The introduction of Geographic Information System (GIS), Global Positioning System (GPS), Decision Support System (DSS) and Remote Sensing (RS) in oil palm plantation management has opened the opportunity for practicing Precision Agriculture (PA) or Variable-rate Technology (VRT). Precision agriculture uses precise information of location and agronomic conditions of the oil palm field and their relationships with growth and yield to increase production by accurate and efficient use of inputs, sustaining soil fertility and realizing the potential oil palm yield. Presently, the implementation of PA in oil palm plantation is being carried out at various stages, concentrating on fertilizer requirements. Initial work on PA for oil palm focuses on building up of plantation databases using GIS, GPS, and RS technologies. There are many other factors such as size of management unit, intensity of soil, foliar and yield sampling, use of variable rate machineries and methods of analyzing economic issues that need to be understood and further developed before full PA management systems and techniques can be successfully adopted in oil palm plantations. Oil palm yields are significantly correlated with leaf nutrient content, and foliar analysis has been widely used to determine oil palm fertility status and nutrients requirements. Many methods of leaf sampling, analysis and interpretation have been devised and adopted by the industry in order to develop the best fertiliser recommendation system for the oil palm. Currently, GIS, GPS and DSS technologies are being used to assist in determining oil palm nutrient and fertiliser requirements. This combined approach is able to create a variable-rate fertiliser map to guide better fertiliser application in the field. A trial using PA technologies and leaf analysis for fertiliser recommendation has been set up at Ulu Bernam Estate, Telok Intan, Perak. The site, on Sabrang series soil (Sulfic Endoaquepts) with a cambered field system, was replanted with 3rd generation palms in 1996. The 40 hectare site was divided into 104 plots (0.36 ha plot-1), each with 49 palms. Oil palm yields and leaf samples were collected and analysed on a plot basis. The Oil Palm Efficient Nutrient System (OPENS) developed by Malaysian Palm Oil Board (MPOB) was applied to the leaf analysis data to determine the maximum site yield potential and the most limiting leaf nutrient of each plot. Yield and nutrient maps were created using GIS interpolator. The variable-rate fertiliser map was created by overlaying the yield map and the nutrient maps. The results of this study indicated that combining the PA technologies with the present methods of oil palm fertiliser recommendation could provide more precise fertiliser management for the oil palm. One of the important components of precision agriculture is a variable-rate applicator. The applicator is used to apply the fertiliser based on the spatial information of the variable-rate fertiliser map. A pilot scale evaluation study was conducted on a variable-rate applicator at MPOB Research Station, Bangi, Selangor. Two types of compound fertiliser (compact and granular) and three rates of application (200, 500 and 800 kg ha-1) were evaluated. A basic GPS receiver, portable personal computer and calibrator were used to vary the fertiliser rate based on the variable-rate fertiliser map. Results of the study showed that the variable-rate fertiliser applicator hardware and software used in this study successfully executed the variable-rate fertiliser application. For the three application rates tested, 200, 500, and 800 kg ha-1, the applied rate errors for the compact (MPOB F1) and granular (MPOB F2) fertilisers were 12.1 %, 0.2 % and 29.3 %; and 11.2 %, 0.3 % and 3.3 % respectively. The minimum and maximum spatial error of the GPS receiver readings observed for the fertiliser placements were 0.33 and 9.08 meters respectively. | |
| dc.language | ng | |
| dc.publisher | Kuala Lumpur : MPOB, | |
| dc.subject | Sistema de posicionamiento global | |
| dc.subject | Sistemas de Información Geográfico | |
| dc.subject | Palma de aceite | |
| dc.title | Variable rate technology for targeted and efficient oil palm fertiliser application. | |
| dc.type | text | |
