Organic matter decomposes

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  • Research Reports IWMI’s mission is to improve the management of land and water resources for food, livelihoods and environment. In serving this mission, IWMI concentrates on the integration of policies, technologies and management systems to achieve workable solutions to real problems—practical, relevant results in the field of irrigation and water and land resources.

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  • Healthy soil is the foundation of organic farming. Regular additions of organic matter in the form of cover crops, compost, or manure create a soil that is biologically active, with good structure and capacity to hold nutrients and water (note that any raw manure applications must occur at least 120 days before harvest). Decomposing plant materials will activate a diverse pool of microbes, including those that break down organic matter into plant-available nutrients, as well as others that compete with plant pathogens in the soil and on the root surface.

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  • Decomposedplantmatter is themain sourceofessentialsnutrients. Theharvesting timeof energycrops,quantity(ofenergycroprichinnutrients)removedduringharvestinfluencesthe nutrientcycleofthesoil,asnutrientsareremovedalongwiththecropsduringtheharvest.This removalofnutrientswithharvesting,leadstothetaxingofessentialnutrientsinthesoil.

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