CROPS BASE ROUTINE CALCULATION OF IRRIGATION REQUIREMENTS CB5.1.1 SYSTEMATIC PREDICTION METHODS Number Control Point Compliance Criteria Level References CB5.1.1 Are tools used routinely to calculate and optimize the crop irrigation requirements? The producer can demonstrate that crop irrigation requirements are calculated based on data (e.g. local agricultural institute data, farm rain gauges, drainage trays for substrate growing, evaporation meters, water tension meters for the percentage of soil moisture content). Where on-farm tools are in place, these should be maintained to ensure that they are effective and in a good state of repair. N/A only for rain-fed crops. MINOR Attached: CB5.1.1 Calculation of irrigation requirements. Office P.C: AquaCheck Login. Irrigation File: Application records. Irrigation File: Rainfall records. CB5.1.1 ROUTINE CALCULATION OF IRRIGATION REQUIREMENTS The farm makes use of Aqua-Check soil moisture probes & software installed on the farm in order to determine soil moisture percentage, this monitoring system is used for systematic irrigation predictions. All rainfall on the farm is measured and recorded.
Wetland and riparian areas Scientific irrigation scheduling and application Run-off, drift of chemicals & fertilizers into water sources Any person, flora & fauna that comes into contact with contaminated water Drift, run-off or spillage due to incorrect storage, handling and application techniques Training Correct storage of products Sound handling & application practices Continually Production Manager Low Flooding caused excessive run-off from dams and orchards People & crops downstream from dams Poor dam design and orchard layout Qualified personnel carry out planning & construction of dams and orchard layouts When construction or land preparation takes place Senior Management Low Soil Erosion due to poor water management Downstream users Crops Wetland and riparian areas Poor orchard layout & lack of good soil conservation practices Correct orchard orientation Maintaining of waterways & roads Continually Production Manager Low Microbial contamination of water sources by animal and/ or human sludge, waste or faeces End users Water users Crops Wetland and riparian areas Microbial contamination Annual water analysis of potable, irrigation and crop spray mix water, for microbial contamination. No sewage water is used on Waterford Farm Annually Senior Management Low What is the hazard? Who or what might be harmed and how? How is the harm likely to take place? What is being done to manage this hazard? When is management of the hazard necessary? Who will manage the hazard? Risk Contaminated Waste Water Surface water bodies Underground water soils downstream users flora & fauna Waste water runoff from equipment cleaning bays Installation of waste water catch and evaporations tanks at wash bays Application of surplus spray mix onto designated orchards Continually Production Manager Low Soil salinity and waterlogging * See additional notes below Soil, Environment, Crop & water resources (including underground water resources) Continual over or under irrigation due to poor irrigation design and practices Only qualified irrigation engineers are involved with planning & installation of irrigation systems Sound irrigation practices Scientific irrigation scheduling and application When installation is required Senior Management Low
Water users downstream from water sources Wetlands and riparian areas downstream from water sources cropping, inter-row covers & mulching Filtration of irrigation water Continually Production Manager Low Removal of agricultural packaging and waste from orchards Continually Production Manager Low Continued/… CB5.3.2 WATER MANAGEMENT: PHYSICAL & CHEMICAL POLLUTION RISK ASSESSMENT (Continued) Annual review required: 21/7/2016 What is the risk? Who or what might be harmed and how? How is the harm likely to take place? What is being done to mitigate this risk? When is mitigation of the risk necessary? Who will manage the mitigation? Review date Risk rating Microbial contamination of water sources Refer to CB5.2.1 WATER MANAGEMENT: ENVIRONMENTAL RISK ASSESSMENT Low Avocados are considered a low risk crop regarding microbial & chemical contamination: The fruit is covered by a protective skin which is removed before eating. Annual review completed by Designation Date CB5.3.3 ANALYSIS OF WATER USED DURING PRE-HARVEST ACTIVITIES Number Control Point Compliance Criteria Level References CB. 5.3.3 Is water used on pre-harvest activities analysed at a frequency in line with the risk assessment (CB 5.3.2) taking into account current sector specific standards? Water testing shall be part of the water management plan as directed by the water risk assessment and current sector specific standards or relevant regulations for the crops being grown. There shall be MINOR Certifications & Registrations File: Water analysis. Certifications & Registrations File: Water Sampling Guide