The causes of the lack of self-tolerance of winter rye, grown on light sandy soils. 1. Influences of foot rots and nematodes.

Abstract

In an 18-yr rotational experiment on a light sandy soil, rye, grown after rye, showed a depression in grain yield of 30% and in straw yield of 10%, compared to rye following other crops (oats, maize, potatoes or rape). Investigation into the causes of this reduction in yield made it highly probable that neither nematodes nor foot-rot fungi were the main causes. Rye grown after rye seems to take up less N from the soil than in any other sequence. ADDITIONAL ABSTRACT: In an 18-year rotational experiment on a light sandy soil in the Netherlands, yields of seed and of straw from rye following rye were reduced by 30% and 10% respectively, compared with yields from rye following other crops. Investigation showed that it is highly improbable that either nematodes or foot rot fungi are the causes. (Abstract retrieved from CAB Abstracts by CABI’s permission)