N-Lock™

Name: N-Lock™
Brand: Corteva Agriscience

Nitrogen Stabilizer

• N-Lock is for farmers who want to keep nitrogen available in the root zone for longer and optimise their yield

• N-Lock ensures the efficient use of nitrogen in cereals, oilseed rape and maize giving higher income and lower nitrogen losses

• Recent farmer trials have shown average yield increases of +9% in maize and +4.7% in winter wheat

• N-Lock can be used through existing farm sprayers, or added to slurries

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Benefits

How N-Lock works

N-Lock helps keep nitrogen in the ammonium (NH4+) form for a longer period of time by inhibiting the bacteria that convert ammonium to nitrite (NO2-). As ammonium is positively charged it is attracted to the negatively charged soil particles, and hence is not washed out of the rooting zone. Nitrite and nitrate (NO3-) however are negatively charged and can be easily washed down the soil profile away from the roots of the crop. Therefore N-Lock keeps more nitrogen in the rooting zone for longer, which means that crops can optimise their yield potential.

Benefits of using N-Lock in Maize

The amount of nitrogen in the root zone of the soil plays a key role in delivering maximum yields at harvest
Current RB209 gives N Max of 150 kg for maize - this is not enough for modern varieties / husbandry methods
Maize requires more than 50 % of nitrogen post flowering
Up to 60 kg nitrogen can be lost pre-flowering
Applying late nitrogen is difficult without crop damage / specialist equipment
N-Lock keeps a balance of ammonium and nitrate for maximum yield
You only need 1 extra tonne of maize to cover the cost of N-Lock

Crops

Canola

Cereals

Maize

Technical Specifications

Crops:
Cereals, oilseed rape and maize

Application Timing:
During March for winter cereals. Before, at, or after drilling for Maize

Recommended Dose:
2.5 litre/ha

Water Volumes:
100 - 200 litres water/ha 400-600 litres liquid UAN/ha

Spray Quality :
MEDIUM as defined by BCPC

Nozzles:
All conventional nozzles

Maximum Dose:
Do not apply more than a total of 5 L of N-Lock per hectare per year, 125 days must elapse between applications

Active Ingredient:
200 g/litre nitrapyrin

Pack size:
10 Litres

Formulation:
CS Capsule Solution (Microencapsulation)

How to use N-Lock - Maize

Apply muck / digestate and plough in (February - April)
Option 1
- Apply before pre-drilling cultivations +/- glyphosate
- Incorporation - soil movement to a depth of 50 mm and min tine spacing of 20 cm
- If N-Lock is not physically incorporated to 50 mm, then 12 mm of rainfall is required within 10 days of application
Option 2
- Mix with pre-em herbicide or liquid fertilisers if rain is imminent
Option 3
- Wait until rain is forecast and apply alone (can be sprayed in then rain) at 100 L/ha water volume

How to use N-Lock - Cereals and Oilseed Rape

Apply using a farm sprayer
Rainfall (12 mm within 10 days of application) or several nights of heavy dew is needed to get the N-Lock into the soil
Can be applied in the rain (when applied alone)
N-Lock can be applied with T0's in winter cereals (see tank mix list)
N-Lock is best applied near to the main spring fertiliser application (typically March time, or early April further north).

Where should you use N-Lock?

Use where nitrogen losses can be high, such as permeable soils, or soils prone to waterlogging
Use on high potential crops where maximum nitrogen efficiency is required
Use as an aid to organic manure management
Use where a regular supply of nitrogen to the plant is required throughout its growing cycle

Resources

For more information download:

N-Lock Label

N-Lock safety data sheet

N-Lock tech sheet

N-Lock tank mix

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Use plant protection products safely. Always read the label and product information before use.