Claim · model-written summary
Deep plowing had little effect on root yield of cabbage.
- Taxon
- cabbage
Brassica oleracea var. capitatae1 - Treatment
- Deep plowinge1
- Outcome
- root yieldse1
- Direction
- little effecte1
Not reportedComparator
Verbatim
e1“Deep plowing tended to decrease root yields of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’)”
Title
Profile Modification and Root Yield, Distribution, and Activity1
Harold V. Eck; Ronald G. Davis Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300060034x
Other claims from this paper (11)
- Intervention effect Deep plowing tended to decrease root yield of sudangrass.
- Intervention effect Deep plowing tended to decrease root yield of sugarbeets.
- Intervention effect Deep plowing tended to decrease root yield of soybeans.
- Association Root yields of plants decreased with depth on soil rototilled to 20 cm or moldboard plowed to 90 cm.
- Intervention effect Application of 22,400 kg/ha of Na2CO3 at the 90 cm plow depth made roots of plants tend to be evenly distributed throughout the 90 cm profile.
- Intervention effect Profile modification enhanced root activity of plants, as measured by top-root ratios.
- Method / resource Top-root ratios are better indicators of root activity than top or root yields alone.
- Observation Sr 85 uptake showed that roots in the 70 to 90 cm zone were as active as roots in the 0 to 20 cm zone.
- Intervention effect Na2CO3 tended to increase root weights in its zone of application.
- Intervention effect Na2CO3 reduced radiostrontium uptake by about eightfold compared with similarly placed radiostrontium without Na2CO3.
- Association Na2CO3 indicates a decrease in root activity.