Essays about: "catch crop"

Showing result 16 - 19 of 19 essays containing the words catch crop.

  1. 16. Mineral nitrogen in spring in two cropping systems with permanent nitrogen supply

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Su Liu; [2012]
    Keywords : conservation tillage; soil; crop; farming system; rotation; nitrogen mineralization; nitrogen leakage;

    Abstract : The purpose of this study is to find out nitrogen (N) transformation in rotation system from previous crop to succeeding crop in both conventional cropping system and conservation tillage cropping system. The conservation tillage cropping system used some methods like legumes and catch crop with lower inputs of fertilizers and pesticides. READ MORE

  3. 17. Fånggrödor i Norra Östersjöns vattendistrikt

    University essay from SLU/Dept. of Soil and Environment

    Author : Beatrice Ramnerö; [2012]
    Keywords : fånggrödor; fosforläckage; rättika; oljerättika; Mälardalen; strukturförbättring; erosion ;

    Abstract : 70 % of the lakes and waters in the water district of northern Baltic Sea do not reach the requirements for good ecological status. This is mostly due to eutrophication caused by a too high deliverance of nutrients from agricultural land or effluents. READ MORE

  4. 18. Plume interaction and odour source spacing ofpheromone and non-host volatiles : : Behaviouraleffects on bark beetles and moths

    University essay from SLU/Dept. of Plant Protection Biology

    Author : Muhammad Binyameen; [2009]
    Keywords : Odour; plume structure; plume interactions; Spodoptera littoralis; S. litura; Ips typographus; Lepidoptera; Noctuidae; Coleoptera; Scolytidae; PID; orientation; sex pheromone; NHV ;

    Abstract : Insects have a remarkable ability to sense whether odours are released from one point source or from two closely separated ones. Therefore it is of interest to study the interactions of pheromone component odour plumes to affect the insect behaviour when the release points ofdifferent components are physically separated. READ MORE

  5. 19. Kvickrotsstudier: 1. Kvickrotens reaktion på myllningsdjup, kvävemängd och kväveplacering i konkurrens med gröda. 2. Reducerad glyfosatanvändning på trädad åkermark

    University essay from SLU/Dept. of Soil Sciences

    Author : Sam Forsberg; [2005]
    Keywords : glyfosat; fånggröda; putsning; stubbearbetning; kväveplacering; kvävetillgång; kvickrot; konkurrens;

    Abstract : 1. Reaction on burial depth and nitrogen availability and placement in competition with a crop In this trial it was investigated how couch grass (Elymus repens) changes its ability to compete in stands of wheat and barley with different burial depth and different amounts and placement of nitrogen. READ MORE