In this link is a number of pdf links with some of my old reports on tropical farming. Some are from project work in Botswana and other is from studies in Denmark.

The reports are from another time, from 25 to over 30 years old, and are therefore all scanning’s from the original paper versions, which means that the quality is so and so but readable I hope.

I developed my way of seeing farming, as a symbiotic biological recycling system, because it was the only way I could build up fertility and yield in the dry Kalahari Desert.

I decided to call my farming system “Integrated Farming” because it was integrating all kinds of farming to create a "Productive biological circle building on a symbiotic relationship between soil, plants and animals".