Abstract
Abstract Insecticide spraying trials conducted over a period of four years, 1970 to 1974, have shown that u.l.v. spraying using various formulations is as effective as conventional low volume sprays in increasing the yield of cowpea. More than ten-fold increase in yield may be obtained from a crop protected from insect damage by insecticide applications. In northern Nigeria where water is not often readily available the choice open to the farmer is to use u.l.v. spraying or not to spray at all.
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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 2
Claim · model-written summary
Ultra low volume sprays were as effective as conventional low volume sprays in increasing cowpea yield.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- u.l.v. sprayinge0
- Outcome
- yielde0
- Direction
- as effectivee0
- Comparator
- conventional low volume sprayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“u.l.v. spraying using various formulations is as effective as conventional low volume sprays in increasing the yield of cowpea.”
Claim · model-written summary
Insecticide protection from insect damage could raise cowpea yield by more than tenfold.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- insecticide applicationse0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- More than ten-folde0
- Qualifier
- may be obtainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“More than ten-fold increase in yield may be obtained from a crop protected from insect damage by insecticide applications.”
t0“Cowpea”
The same questions in other papers
insecticide · yield · Vigna unguiculata (cowpea)Positive and negative results
23 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- positive
24 papers more in this group
See all 28 papers →application · yield · Vigna unguiculata (cowpea)Positive and negative results
111 papers in the same direction as this paper · 12 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
122 papers more in this group
See all 126 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.