Fertiliser - Urea 46-00-00-00 - 1 Tonne STB
Plants take up nitrogen from the soil in the mineral forms of nitrogen, both ammonium and nitrate before converting it to plant protein nitrogen. Plants vary in their preference to...
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Plants take up nitrogen from the soil in the mineral forms of nitrogen, both ammonium and nitrate before converting it to plant protein nitrogen. Plants vary in their preference to utilise either form of nitrogen. Nitrate is considered the main source because it is mobile in the soil. On addition to the soil, Urea dissolves into the soil solution and is converted to ammonium and then to nitrate.
Conversion is favoured by:
- Temperature – the activity range is wide, varying from -20°C to 37°C with the optimum >20°C.
- Organic matter – activity is enhanced in soils high in organic matter which favours microbial activity.
- The time for Urea to be converted to ammonium will depend on the conditions of moisture and temperature. The reaction will begin to occur 24 hours after application and be complete within 2 to 5 days. The reaction time is slowest in cold, waterlogged conditions.
It is these biological processes in the release of nitrogen from Urea to plants that gives Urea its main characteristic of a slower release form of nitrogen. Urea has longer availability for uptake by plants and release rates that are more closely related to plant growth.
In Store Pickup
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Standard Member Delivery Rates
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Standard Delivery Timeframes
Please allow 1 - 4 days for your delivery to arrive. This timeframe varies depending on your location and the availability of products in store.
Taxes
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We aim to process all orders within one business day. Weekend and Public Holiday orders will be processed the following business day.