Further Experiments on the Chemical Treatment of Soil infected with Heterodera schachtii

Abstract

Preliminary experiments were carried out during 1935, on the possible application of certain chemical substances to the problem of controlling “potato-sickness.” The results were published in two papers by Hurst & Triffitt (1935, i, ii) and it was shown that calcium cyanamide and ferric oxide were deserving of further trials on a larger scale. Field experiments were devised and carried out during 1936 in various parts of the country, and the results will be communicated when these are available. In the meantime the small-scale experiments were continued and are described below.