Claim · model-written summary
Ploughing to 8 in. increased non-capillary porosity of the soil in the 4–8 in. layer compared with tine cultivations.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- Ploughing to a depth of 8 in.e0
- Outcome
- non‐capillary porositye0
- Direction
- increasede0
- Qualifier
- in this layere0
- Comparator
- tine cultivationse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ploughing to a depth of 8 in. loosened the soil of the ploughed plots in the 4–8‐in. layer and increased the non‐capillary porosity of the soil (aeration) in this layer compared with the 4‐in. and 2‐in. tine cultivations”
t0“winter wheat”
Title
Khazan Singh Journal of the Science of Food and Agriculture 1952. doi:10.1002/jsfa.2740031105
Other claims from this paper (14)
- Intervention effect No significant differences existed between cultivation treatments in looseness of soil or its non-capillary porosity at 0–4 in.
- Intervention effect Ploughing increased the number and lengths of roots at all depths in July compared with tine cultivation.
- Intervention effect Ploughing produced a deep root system, whereas tine cultivation produced a shallow root system.
- Intervention effect Ploughing to 8 in. induced a higher degree of branching at 10–20 cm and 20–30 cm depths than working the soil to 4 or 2 in.
- Observation Second and third order root branching occurred predominantly at depths below 10 cm.
- Observation In the humid and rich soil of Boghall, a shallow root system of wheat developed with 74% of roots in the 0–8 in. layer.
- Association Ploughing to 8 in. extended the spread of roots in the deeper layers of horizon A2.
- Association Ploughing restricted the spread of roots in the upper layers of soil in horizon A1.
- Recommendation Deepening the working depth of roots by ploughing in a rich soil is doubtful to offer advantages over 2–4 in. cultivations for water and nutrient supply.
- Intervention effect At early growth stages the top/root ratio was smaller with tine cultivation than with ploughing.
- Intervention effect After manuring, no differences in top/root ratio existed between cultivation treatments.
- Observation Tine cultivated plots showed a deficiency in the supply of nitrogen.
- Association The effects of cultivation on root development were more pronounced in July than at early stages.
- Intervention effect No significant differences existed between treatments in average vertical root penetration at early growth stages.