Our objective was to compare burning, grazing, tilling, trampling and clipping wheat stubble fields on changes in total aboveground biomass and weed density.
We found that no-till management reduced total soil loss by one-third compared with stubble mulch tillage, reduced water-borne sediment loss by about the same amount, and that for both tillage systems, wind erosion was responsible for about 75% of the total soil loss.
WSC was analysed in total herbage from a cut at approximately 4-cm stubble height.
Rangeland is considered as the main source of feeding (85% of total annual feed intake); the remaining 15% is provided by stubble grazing.
All diagrams (Fig. 1A L) show that a large proportion of the total biomass was concentrated in the lowest layer and remained as stubble after the harvest, which led to harvest indices from 36 ± 5.6 up to 73.5 ± 6.7.
A total of 102 candidate genes were identified that express differentially in the A and P compartments; four were characterized: Stubble (Sb ) expression is restricted to A cells due to repression by en.
Stubble, stubble, toil and bubble?
