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Content DescriptionThis document provides guidelines for the evaluation of the fertilizer value of treated wastewater (TWW) at different treatment levels, for an effective fertilization of crops irrigated with TWW. This document covers: —    evaluation of the nutrient quantities provided by TWW and the synchronization between crop needs and the nutrients applied with TWW; —    availability of nutrients to crops irrigated with TWW; —    monitoring nutrients in water, soil and crops irrigated with TWW; —    matching between TWW quality and fertilizer properties. Risk assessment and risk management for the safe use of TWW in irrigation projects are addressed in ISO 20426[1] and ISO 16075-2[2]. About ISOISO, the International Organization for Standardization, brings global experts together to agree on the best way of doing things – for anything from making a product to managing a process. As one of the oldest non-governmental international organizations, ISO has enabled trade and cooperation between people and companies all over the world since 1946. The International Standards published by ISO serve to make lives easier, safer and better. |
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