Abstract
It is now believed that a major reason for frequently observed decline in alfalfa seed yields after the first or second year has been the lack of sufficient subsoil moisture. In deep alluvial soils (for the first crop or two) the subsoil moisture present is generally a carryover from previous crops—if they were shallow rooted, or were irrigated late in the season. These test results show that 48 inches of irrigation water, applied to a dry soil, is sufficient moisture to insure production of a good alfalfa seed crop.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
The authors attribute seed yield decline after the first or second year to insufficient subsoil moisture.
- Taxon
- alfalfa
Medicago sativae7 - Outcome
- decline in alfalfa seed yieldse0
- Qualifier
- lack of sufficient subsoil moisturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a major reason for frequently observed decline in alfalfa seed yields after the first or second year has been the lack of sufficient subsoil moisture”
e7“alfalfa seed yields”
Claim · model-written summary
In deep alluvial soils initial subsoil moisture generally carries over from prior crops.
- Taxon
- alfalfaMedicago sativae7
- Outcome
- subsoil moisture presente0
- Setting
- deep alluvial soilse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In deep alluvial soils (for the first crop or two) the subsoil moisture present is generally a carryover from previous crops”
e7“alfalfa seed yields”
Claim · model-written summary
Applying 48 inches of irrigation water to dry soil was sufficient for a good alfalfa seed crop.
- Taxon
- alfalfaMedicago sativae7
- Treatment
- 48 inches of irrigation watere0
- Outcome
- production of a good alfalfa seed crope0
- Qualifier
- dry soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These test results show that 48 inches of irrigation water, applied to a dry soil, is sufficient moisture to insure production of a good alfalfa seed crop”
e7“alfalfa seed yields”
The same questions in other papers
irrigation · yield · Medicago sativa (alfalfa)Results differ
65 papers in the same direction as this paper · 25 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
88 papers more in this group
See all 92 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.