Essays about: "weed control"

Showing result 16 - 20 of 87 essays containing the words weed control.

  1. 16. Intercropping oats with annual clovers : effects on yields and aspects of biodiversity

    University essay from SLU/Dept. of Ecology

    Author : Anna Douhan Sundahl; [2021]
    Keywords : intercropping; cover cropping; pollinators; natural predators; weeds; clover; oats;

    Abstract : The use of fertilizers, pesticides and herbicides has contributed to greatly increase the crop yields per hectare. Humanity has become reliant on artificial inputs overshadowing usage of resources from ecosystem services that we continue to weaken further, by using agricultural practises decreasing landscape and species diversity. READ MORE

  3. 17. Gråbo : biologi och kontroll

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Cecilia Ward; [2021]
    Keywords : allergi; Artemisa vulgaris L; bekämpning; gråbo; flerårigt ogräs; kontroll; pollen; reducerad jordbearbetning; spridning;

    Abstract : Gråbo (Artemisa vulgaris L.) är ett flerårigt örtogräs. Arten finns spridd över hela världen och trivs framför allt på torrare, lättare jordar men har börjat öka på jordar med annan textur och fuktförhållanden. Ofta stöter man på gråbo i dikeskanter, på ruderatmarker och på åkern. READ MORE

  4. 18. Hybrid walnut : results from a five year field trial in southwest Sweden 2015-2020

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Stefan Juravle; [2020]
    Keywords : hybrid walnut; NG23; NG38; fertilization; fork; future crop tree; nurse trees;

    Abstract : A crossbreeding between american black walnut and Persian walnut lead to the development of a hybrid walnut (Juglans x intermedia). In a field trial from southwest Sweden have been tested the impact of different levels of nurse trees, fertilization and weed control on the early growth of two hybrid walnut varieties: NG23 and NG38. READ MORE

  5. 19. No-till grain legume production in organic farming : constraints, possibilities and potential agronomic practice

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Zuzanna Chetnik; [2020]
    Keywords : no-till; conservation tillage; cover crops; intercropping; organic farming; grain legumes;

    Abstract : Today’s agriculture is often specialised, and relies on pesticides, synthetic fertiliser and tillage. Tillage, especially ploughing, has shown to have a negative impact on climate, soil health and -biodiversity. An alternative is no-tillage, a practice that leaves the soil almost undisturbed except for minimal impact during sowing. READ MORE

  6. 20. Ogräskontroll : i odlingssystem utan glyfosat och med liten användning av herbicider och jordbearbetning

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Albin Hidén; [2020]
    Keywords : alleopati; conservation agriculture; glyfosat; glyfosatförbud; herbicid; herbicidresistens; jordbearbetning; mellangrödor; ogräs; ogräskonkurrens; ogräskontroll; reducerad jordbearbetning; växtföljd;

    Abstract : Ogräs har oftast större betydelse för en grödas avkastning än både skadeinsekter och växtsjukdomar. Ogräskontroll sker i huvudsak med användning av herbicider och jordbearbetning. En överanvändning av selektiva herbicider under lång tid har lett till att ogräspopulationer har utvecklat resistens mot dessa. READ MORE