Abstract
In double-cropping experiments in 1970-4, direct drilling and conventional ploughing were compared for the establishment of soyabeans or sorghum after wheat. Comparable yields were obtained in years when weather conditions were favourable for the use of herbicides, but in years with high rainfall after seedling emergence yields were about 30% lower for soyabeans and 15% lower for sorghum after direct drilling. This indicated that sorghum could be a more competitive 2nd crop than soybeans. Direct drilling at between-row spacings of 19 or 38 in had variable effects on yield, but in the case of soyabeans there was a tendency for increased yields at the narrow spacing
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Claims 6
Claim · model-written summary
Direct drilling and conventional ploughing produced comparable yields in favorable herbicide weather.
Verbatim
e0“Comparable yields were obtained in years when weather conditions were favourable for the use of herbicides”
t0“direct drilling and conventional ploughing were compared for the establishment of soyabeans or sorghum”
Claim · model-written summary
High rainfall after emergence reduced soyabean yield by about 30% under direct drilling.
Verbatim
e0“in years with high rainfall after seedling emergence yields were about 30% lower for soyabeans and 15% lower for sorghum after direct drilling.”
t0“conventional ploughing”
Claim · model-written summary
High rainfall after emergence reduced sorghum yield by 15% under direct drilling.
- Treatment
- direct drillinge0
- Outcome
- yieldse0
- Direction
- lowere0
- Value
- 15%e0
- Qualifier
- high rainfall after seedling emergencee0
- Comparator
- conventional ploughingt0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in years with high rainfall after seedling emergence yields were about 30% lower for soyabeans and 15% lower for sorghum after direct drilling.”
t0“conventional ploughing”
Claim · model-written summary
Sorghum may be a more competitive second crop than soybeans.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum could be a more competitive 2nd crop than soybeans.”
Claim · model-written summary
Direct drilling at 19 or 38 inch row spacing had variable yield effects.
- Taxon
- soyabeans or sorghumt0
- Treatment
- Direct drilling at between-row spacings of 19 or 38 ine0
- Outcome
- yielde0
Not reportedComparatorDirection
Verbatim
e0“Direct drilling at between-row spacings of 19 or 38 in had variable effects on yield”
t0“soyabeans or sorghum”
Claim · model-written summary
Soyabeans tended to yield more at narrow row spacing.
Not reportedComparator
Verbatim
e0“in the case of soyabeans there was a tendency for increased yields at the narrow spacing”
The same questions in other papers
transplanting · yield · SorghumPositive and negative results
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- positive
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See all 24 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.