nutrient cycle


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nutrient cycle

the passage of a nutrient through an ECOSYSTEM so that it eventually becomes reavailable to the PRIMARY PRODUCERS.
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Importantly, AD offers a closed loop nutrient cycle, she added.
Ngai and Srivastava (2006) found the presence of both detritivorous and predators increased significantly the flow of N from litter to bromeliads and accelerate the nutrient cycle.
Soil enzymes, synthesized mainly by microorganisms, have an important role in nutrient cycle, and their activities are responsive to changes in soil and plant management, such as residue or fertilizer application, as well as to crop rotation (GIACOMETTI et al.
Since we can't create more phosphorus, we have to close the nutrient cycle within agricultural enterprises and beyond.
Some of this cut timber I leave in situ to rot down naturally, providing a home for woodland insects and microorganisms as part of the natural nutrient cycle.
Beyond this, the growing international food trade can separate producer and consumer by thousands of kilometres, further disrupting the nutrient cycle.
Their disappearance would break the nutrient cycle and have knockon effects on water quality, animal populations and human communities.
Rod Cunningham, RSPB head of water policy, said: "Using the nutrient cycle wisely is vital for agriculture, industry and the environment.
A nutrient cycle is the movement of an element among several reservoirs, or "pools," in the environment.
The use of animal manures and compost of organic materials has increased the nutrient cycle potential of plant-animal operations.
Waste Composting for Urban and Peri-Urban Agriculture: Closing the Rural--Urban Nutrient Cycle in Sub-Saharan Africa Pay Drechsel, Dagmar Kunze, eds.
When soil organisms die and decompose, they bequeath a pool of slow-release nitrogen for plants -- just one part of the nutrient cycle, mediated by soil organisms.