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Nitrogen balance and dynamics as affected by water table and fertilization management in celery（Apium graveolens）cropping system of southwestern China
Agricultural ecosystem gaseous N emissions N leaching
2009/3/3
There is a great concern on N cycle and dynamics in intensive cropping agricultural ecosystems because of their possible negative environmental consequences. Field experiments were conduced at the D...
Outlook for World Fertilizer Demand, Supply, and Supply/Demand Balance
Agricultural production fertilizer demand fertilizer supply
2009/1/8
The outlook is driven by impressive economic growth in Asia, increasing demand for biofuel, and a tight grain market. As a result of tight supply/demand conditions, prices for almost all agricultural...
Effect of fertilisation systems on the balance of plant nutrients and soil agrochemical properties
heavy loam brown soil fertilising system crop rotation phosphorus and potassium humus
2010/1/13
In the organic fertilisation system, the application of only 80 t ha‑1 of farmyard resulted, compared with the mineral fertilisation system, in a humus content increase in the plough layer by 0....