Sentence examples for amount of fertiliser from inspiring English sources

Similarly for fertilisation, the variable F (fertilisation intensity) is the amount of fertiliser applied (kg/ha) divided by the time (years) since fertilisation.

Fertilisation intensity (F) is the amount of fertiliser applied (kg/ha) divided by the time (years) since fertilisation.

To have clean water, we need to greatly reduce the amount of fertiliser, sediment and chemicals coming from all sources – farms, urban development and industry".

Since the 1960s the amount of fertiliser used by farmers has increased sixfold, and not all of that extra nitrogen ends up in their crops.

Jon Brodie, an expert in coral reefs and water quality at James Cook University, said if you increased cropping in the Great Barrier Reef catchment, you increased the amount of fertiliser that ran into the reef.

Leaders will also be looking at how to stop plastic waste from ending up in the sea, and for reducing the amount of fertiliser which flows from farmland into waterways, creating ocean deadzones.

Using a satellite, precise amounts of fertiliser can be spread lots on infertile bits of field, little on fertile bits.

A United Nations (UN) report confirms that excessive amounts of fertiliser and subsequently pesticides to tackle disease raised average global grain yields by 24percentt between 1950-1981.

Farmers who are old enough can even remember when the country is believed to have produced enough food to feed itself, in the mid- to late 1980s — though that required importing great amounts of fertiliser and fuel.

GPS-equipped sensors on tractors, for example, enable farmers to measure and respond to soil variability across vast tracts of land, and dispense the right amounts of fertiliser and water exactly where it's needed.

The amounts of fertiliser N applied annually has also increased substantially and in 1994 these were estimated to be ∼60% of the total N (equivalent to 194 kg ha−1) added to the catchment.