New Scientific Insights

Grid Sampling and Precision Nutrient Management - Opportunities and Pitfalls

September 2025

An article written by Neil Miles and Peter King.

Your comments on this article are invited

Placed: September 2025

Comments by: 14 November 2025

Grid Sampling and Granulated Lime: Potential Money Traps Farmers Walk Into

September 2025

An article written by Neil Miles.

This article was prepared by Neil Miles.

Please study and send FERTASA your feelings on the content.

Placed: September 2025

Comments by: 14 November 2025

Plant and Sap Analysis for Nutrient Management

June 2025

An article written by Neil Miles and Guy Thibaud.

This is the latest article received from Neil Miles and Guy Thibaud. This is an interesting topic and we invite comments, suggestions and recommendations.

Placed: June 2025

Comments by: 31 October 2025

Basing Fertilizer Requirements on Nutrient Removals in the Harvest: What Works?

May 2025

An article written by Neil Miles and Guy Thibaud.

This is the latest article received from Neil Miles and Guy Thibaud. This is an interesting topic and we invite comments, suggestions and recommendations.

Placed: June 2025

Comments by: 31 October 2025

White Paper: Soil Biology - Should you be concerned?

February 2025

An article written by Neil Miles.

This addresses an important topic, and one on which there are a number of divergent opinions. Please have a look at it, and give us your opinions and comments.

As usual, it will be posted for two months, before being moved to “General Scientific Articles”.

Placed: 20 February 2025

Comments by: 31 October 2025

To All Members of Fertasa – Articles Received by Fertasa

Fertasa receives Scientific Articles from a number of sources: identified, volunteered and commissioned.

In order to make Fertasa members aware of these, and to give them the opportunity to comment, suggest additions, and possible alterations where applicable, the Editorial Committee has decided to place them under “New Scientific Insights” on the Fertasa Website.

These contributions will be available for comment for two months. Thereafter they will be placed under:

  • “General Scientific Articles”
  • “Fertilizer Handbook Updates”


It is especially important that these articles must meet the needs of Members in being inclusive, objective and scientific.

Your inputs are therefore considered extremely important.

All correspondence in this regard should be sent to candice@fertasa.co.za and please CC robin@fertasa.co.za.

We look forward to hearing from you.