Competition between spring barley and weed for applied nitrogen in pig slurry
Competition between spring barley and weed for applied nitrogen in pig slurry
Petersen, J.
DJF Rapport, Markbrug 64: 119-127
2002
The experiment was performed in two spring barley fields in the organic six-course crop rotation at Foulumgaard, Denmark in 2000. The preceding crops were a 2nd year clover-grass and beets, and the weed density in the spring barley was 300 and 1800 plants/m2, respectively. Pig slurry was applied in microplots (30x40 cm) through broadcasting (incorporated with good slurry-soil contact) or injecting in bands at depths of 5, 10 or 15 cm (reduced slurry-soil contact).