Abstract
Abstract Four treatments designed to affect some environmental factors during germination and establishment of alfalfa were: two sowing dates (March and May) to produce differences in temperature, light and soil moisture; two sowing methods (notill drill and hand sowing) for creating different degrees of soil‐seed contact; mowing and banded and broadcast sprays of glyphosate to produce varying degrees of plant competition; and methiocarb bait combined with carbofuran granules vs. no pesticide to establish different levels of invertebrate feeding. Alfalfa dry matter (DM) production was affected very little by sowing date in two identical experiments. It was unaffacted by sowing method in experiment 1 (1983) but was significantly higher when alfalfa was sown with a drill in the second trial (1984). Highest alfalfa DM yields were achieved when competition was suppressed by broadcast spraying rather than bands, but details of effect differed in the two experiments. Pesticide treatments yielded more alfalfa DM in the year of establishment. Slugs, Deroceras leave (Müller) and D. reticulatum (Müller), and the potato leafhopper, Empoasca fabae (Harris), were among the potential pest species controlled and may have been partly responsible for the observed effects.
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Claims 5
Claim · model-written summary
Sowing date affected alfalfa dry matter production very little in two experiments.
- Taxon
- Alfalfa
Medicago sativae0 - Treatment
- sowing datee0
- Outcome
- dry matter (DM) productione0
- Direction
- affected very littlee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa dry matter (DM) production was affected very little by sowing date in two identical experiments.”
Claim · model-written summary
Sowing method did not affect alfalfa dry matter production in the first experiment.
- Taxon
- AlfalfaMedicago sativae1
- Treatment
- sowing methode0
- Outcome
- dry matter (DM) productione1
- Direction
- unaffactede0
- Qualifier
- experiment 1 (1983)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was unaffacted by sowing method in experiment 1 (1983)”
e1“Alfalfa dry matter (DM) production”
Claim · model-written summary
Drill sowing significantly increased alfalfa dry matter production in the second trial.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- sown with a drille0
- Outcome
- dry matter (DM) productione1
- Direction
- highere0
- Qualifier
- second trial (1984)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher when alfalfa was sown with a drill in the second trial (1984)”
e1“Alfalfa dry matter (DM) production”
Claim · model-written summary
Broadcast competition suppression produced the highest alfalfa dry matter yields relative to banded spraying.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- broadcast sprayinge0
- Outcome
- alfalfa DM yieldse0
- Direction
- Higheste0
- Comparator
- bandse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest alfalfa DM yields were achieved when competition was suppressed by broadcast spraying rather than bands”
Claim · model-written summary
Pesticide treatments increased alfalfa dry matter production in the establishment year.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Pesticide treatmentse0
- Outcome
- alfalfa DMe0
- Direction
- moree0
- Qualifier
- in the year of establishmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pesticide treatments yielded more alfalfa DM in the year of establishment.”
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