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Leaf Litter Decomposition In The Pomme De Terre River, Lily Fulton
Leaf Litter Decomposition In The Pomme De Terre River, Lily Fulton
Undergraduate Research Symposium 2018
We studied the role of riverbank plant leaves as habitat and food for macroinvertebrates in the Pomme de Terre River. Our objectives were to characterize tree cover along the riverbank using GIS, the decomposition of leaves of 4 native and invasive plant species, and the abundance and diversity of macroinvertebrates colonizing experimental leaf packs. Leaf packs contained boxelder, cottonwood, buckthorn or cattail leaves. Leaves were dried, put into mesh bags and attached to submerged logs in the river. Paper punchers were used to take leaf samples. Tree cover varied among counties. Macroinvertebrate abundance differed significantly between leaf species (ANOVA, p= …
Impact Of Fertilizer, Corn Residue, And Cover Crops On Mycorrhizal Inoculum Potential And Arbuscular Mycorrhizal Fungi Associations, Rachel Brockamp
Impact Of Fertilizer, Corn Residue, And Cover Crops On Mycorrhizal Inoculum Potential And Arbuscular Mycorrhizal Fungi Associations, Rachel Brockamp
Undergraduate Research Symposium 2017
Arbuscular Mycorrhizal Fungi (AMF) can associate with roots of most land plants, helping to take up water and nutrients. Intensive agricultural practices like fallow treatments and adding inorganic nutrients reduce soil AMF. The purpose of my research was to examine whether three factors influenced AMF-crop associations: 1) fertilizer type and application rate 2) inclusion of cover crops that do or do not associate with AMF, and 3) impacts of corn residue. Soil Mycorrhizal Inoculum Potential (MIP) was measured to test treatment differences. MIP is the ability for soil AMF to infect roots. Roots grown in soil from the different treatments …