Essays about: "Earthworms"

Showing result 1 - 5 of 23 essays containing the word Earthworms.

  1. 1. Effects of tillage and straw treatments on earthworm abundance : study in two Swedish long-term field trials

    University essay from SLU/Dept. of Soil and Environment

    Author : Fredrik Ahlberg; [2023]
    Keywords : anecic; conventional tillage; endogeic; no-tillage; reduced tillage;

    Abstract : Earthworms have several functions in the soil, for instance redistribution of organic matter and enhancing plant available nutrients. Earthworms are divided into three ecological groups, with different functions in the soil. The groups are: anecic, endogeic and epigeic. READ MORE

  3. 2. The potential use of black soldier fly larvae residue as a fertilizer

    University essay from SLU/Dept. of Agricultural Biosystems and Techology

    Author : An-Marthe Ingelaere; [2023]
    Keywords : organic waste; fertilizer; black soldier fly; residue; physico-chemical characteristics; sub-Saharan Africa; socio-economic constraints;

    Abstract : In sub-Saharan Africa (SSA), the primary constraint of agriculture productivity has consistently been ascribed to soil fertility. A common approach to improve soil fertility is the use of fertilizers, both organic and inorganic. Though recently interest is increasing in the use of newer alternatives like biostimulants. READ MORE

  4. 3. Effekt av olika odlingssystem på markstruktur och avkastning : pargårdsstudie i Skåne

    University essay from SLU/Dept. of Soil and Environment

    Author : Clara Kihlstrand; Linnéa Frisk; [2023]
    Keywords : Markhälsa; reducerad jordbearbetning; ; Conservation Agriculture; plöjning; mellangröda; höstvete; aggregatstabilitet; daggmaskar; pH; dragkraft; infiltration; vattenhalt;

    Abstract : Metoderna att odla jordbruksmark är många. Dessa odlingssystem påverkar markstrukturen och markhälsan på olika vis. Markhälsa är ett begrepp som blir allt viktigare. Under 2023 kommer EU med nya markdirektiv som ska säkra långsiktig odling och hjälpa till att nå klimatmålen. READ MORE

  5. 4. Hur påverkas daggmaskar av markpackning?

    University essay from SLU/Dept. of Ecology

    Author : Kifilo Oumar; [2022]
    Keywords : daggmask; markpackning; vetesort; anecisk; endogeisk; epigeisk;

    Abstract : Det här arbetet gjordes med ett färdigställt dataset över antal och biomassa av daggmaskar från ett fältförsök med markpackning. Målet med arbetet har varit att undersöka om daggmaskarna har påverkats negativt av markpackning, i kombination med andra abiotiska faktorer som förekommer under varje växtsäsong. READ MORE

  6. 5. Distribution and transport of microplastics and metals in sewage sludge-amended agricultural soil : a Comparative study between microplastics copper, cadmium, and nickel

    University essay from SLU/Dept. of Soil and Environment

    Author : Nora Ottander; [2022]
    Keywords : Bioturbation; advective transport; earthworm; Aporrectodea longa;

    Abstract : This thesis investigated the vertical transport of microplastics and metals in agricultural soil after sewage sludge application. Sewage sludge is commonly used in agriculture for adding nutrients and carbon to improve the soil quality. READ MORE