Planning system in tomato planting for processing factory

Abstract

This thesis aims to study the planning system in tomato growing for processing factory by applying MRP (Material requirement planning) technique which this technique provides precise control to operations personnel regarding the amounts and timing of deliveries to produce end items. The objective of this research is to develop the system of plantation planning and scheduling in tomatoes planting for processing factory. The analysis of the causes had found that there was no proper plan for work procedure of farming department to monitor the growing of tomatoes which lead to problem in acquiring fruits to meet with plan. By applying MRP concept, the plantation planning is divided into 4 phases to eliminate the problem and obtain the most effective plan. Phase 1 is the planning, the plantation schedule is obtained. Phase 2 contracting phase, staffs or zone controllers look for the growing areas as scheduled in phase 1 and get farmers to sign contract. If the areas signed in the contract is not enough, there will be some more action in phase 4. Phase 3 planted phase, zone controllers and monitors check the discrepancy of timing in planting from phase 2 and there might be a corrective action. The last phase is pre-harvesting, staffs and monitors evaluate the percentage in acquiring of product. The contract for more amount of product might be signed again if there is not enough growing areas signed in phase 2. After implementing MRP concept, the result of this research showed that there is an increasing in percentage of acquiring products from 51 to 71 percent when comparing between the actual fruits delivered and forecasting demand.