Record ID No. |
5927 |
Author(s) |
Ngo H. T. T. and Cavagnaro T. R. , 2018 |
Affiliation |
*The Waite Research Institute, and The School of Agriculture, Food and Wine, The University of Adelaide, The Waite Campus, PMB 1 Glen Osmond, Adelaide, South Australia, 5064, Australia. |
Title |
Interactive Effects of compost and pre- planting soil moisture on plant biomass, nutrition and formation of mycorrhizas: a context dependent response. |
Source. Vol.(no):Page |
Scientific Reports. 8(1509). |
Categories |
|
Subjects |
Ecology |
Sub-subjects |
Soil Moisture |
Host |
Wheat, Tomato |
Organism |
NA |
Country |
Australia |
Abstracts |
We aimed to investigate the combined impacts of compost addition and pre-planting soil moisture conditions, on plant-available nutrients, and subsequent impacts on the biomass, nutrition and formation of AM by two important crop species. A glasshouse study was undertaken in which wheat and tomato plants were grown in compost amended or un-amended soil that was subjected to different moisture regimes prior to planting. The availability of P was strongly influenced by compost addition, but not pre-planting moisture conditions. In contrast, mineral N pools were affected by compost addition and pre-planting soil moisture conditions in complex ways. These changes in nutrient availability affected plant biomass, nutrient uptake and formation of AM. In general, plant performance was better where pre-planting soil moisture conditions were wet or dry, and worse where they involved a wet/dry cycle, and mycorrhizal colonisation was lower where compost was added to the soil. That pre-planting moisture conditions affect the biomass of subsequent crops is an important finding, the potential implications of which are considered here. |