You must not spread more than 150kg of total nitrogen per hectare.

NO2 was found in all three studies to contribute more than 50% of the total nitrogen dry deposition.

Of the six water quality parameters, all except total nitrogen showed a significant relationship with discharge.

Total nitrogen levels reach a minimum during the dormant period.

Total nitrogen values were low or below detection limits in all streams.

Only a small fraction (1–3%) of the total nitrogen was found in biological circulation.

These tests determine the total nitrogen in a sample.

The total nitrogen reductions were low initially but improved over time in both filters.

However, its contribution to the total nitrogen dry deposition budget is expected to be relatively minor.

More total nitrogen found in leaves from the upper tree crown could explain the higher performance of this insect.

Effluent total nitrogen values are typically less than 10 mg/L.

The total nitrogen content is typically less than 1% and the targeted levels are in the ppm range.

The soil has very low levels of organic carbon and total nitrogen compared to natural wetland systems.

These emissions are small relative to total nitrogen inputs to the ocean, likely accounting for less than 1 percent.

Total nitrogen increases and shoot growth were similar from the two forms of nitrogen.

The total nitrogen content depends on the climate, vegetation, topography, age and soil management.

It is a tissue test which measures total nitrogen and fructan (sugar) in the growing crop.

Denitrification will also affect the total nitrogen concentration as follows:

For aquatic life, total nitrogen should be limited to prevent excessive aquatic plant growth.

After conversion under the form of ammonia, the total nitrogen is then determined by Kjeldahl method.

The manual refers to the total amount of nitrogen as 'total nitrogen'.

The data also suggest that the percent cover of emergent macrophytes is predictable from mean depth and total nitrogen.

The inset values in the top right hand corner of the diagrams indicate the total nitrogen deposited at each site.

The reserves represent 10% of the total nitrogen in the leaves at the end of the growing period under natural or environmentally controlled conditions.

The early product had 60 percent of the total nitrogen cold-water-insoluble, and the unreacted (quick release) less than 15%.