Effects of legumes on arbuscular mycorrhizal colonisation and phosphorus uptake by the following wheat

摘要

It has been shown that biomass and P uptake in cereals following legumes are higher than in cereals following cereals. This may be due to soil chemical and biological changes induced by the legumes and/or their residues. However, the relative importance of legume pre-crops and their residues on P uptake and arbuscular mycorrhizal colonisation of wheat has not been investigated. The aim of the overall project is to separate the two effects by comparing the following treatments: legume pre-crops with or without residue incorporation and legume residues added without pre-growth of legumes in the soil on P uptake and AM colonisation of wheat. Here we present the results of three short experiments that provide important data for the main experiments.