Agromaster Trial in Germany with Potato

6.6

Yield increase
A single application of Agromaster increased the marketable yield of potato and produced a higher nitrogen use efficiency.

IASP, Berge

Trail

6.6

Yield increase

Key Conclusions

A single application of Agromaster, compared to the grower’s practice consisting of 2 applications of CAN, yielded 25% more tubers larger than 55mm, and produced a 6.6% higher marketable yield (tubers larger 35mm). Agromaster’s controlled release of nitrogen increased the nitrogen use efficiency, ultimately producing a positive return on investment (ROI) of an extra 146 €/ha.

Objective

To compare the efficiency of a single application of Agromaster, a Controlled Release Fertiliser from ICL, when compared to the grower’s usual practice of 2 applications of conventional N fertiliser (as CAN).

Trial Details

Trial station

IASP, Berge

Crop

Potato

Product

Max 44-0-0

Assessments

Marketable yield and NUE

Treatments

This trial evaluated 3 different fertiliser treatments for Ware Potatoes (var. Augusta). All 3 treatments received the same level of P, K, Ca, Mg and S. The control received no additional nitrogen, while the standard grower’s practice and Agromaster treatments received nitrogen fertiliser as shown in the table below. The trial was set up using a randomised block design with 4 repetitions.

TreatmentProductTotal-N mineral,
kg/ha
Timing
Grower PracticeCAN 27-0-0108Before planting
CAN 27-0-072Mid-June
Agromaster*Agromaster*
35-0-0, 2-3M,
60% coated N
180Before planting
* Agromaster was made by combining coated urea and CAN.
All treatments received the same level of P, K, Ca, Mg and S.

Treatments

This trial evaluated 3 different fertiliser treatments for Ware Potatoes (var. Augusta). All 3 treatments received the same level of P, K, Ca, Mg and S. The control received no additional nitrogen, while the standard grower’s practice and Agromaster treatments received nitrogen fertiliser as shown in the table below. The trial was set up using a randomised block design with 4 repetitions.

TreatmentProductTotal-N mineral,
kg/ha
Timing
Grower PracticeCAN 27-0-0108Before planting
CAN 27-0-072Mid-June
Agromaster*Agromaster*
35-0-0, 2-3M,
60% coated N
180Before planting
* Agromaster was made by combining coated urea and CAN.
All treatments received the same level of P, K, Ca, Mg and S.

Results

The trial showed that Agromaster increased the marketable yield of potatoes by 6.6%, with a 25% increase in the yield of larger potatoes, those over 55 mm, compared to the grower’s practice.

Total yield distribution by size (mt/ha) for potato grown with Agromaster, compared to the control and the grower’s practice treatments.

Agromaster increased nitrogen use efficiency (NUE) by 24%, thanks to the controlled release of nitrogen.

Agromaster carrots
Neuhofen
Trail

7

Higher NUE
Seed Potato with Agromaster
East Riding of Yorkshire, UK, 2021
Trail

82

Nitrogen Use Efficiency (NUE)