Abstract
Abstract Field trials were conducted at Kontagora and Mokwa in the Guinea savanna zone of Nigeria to evaluate the relative efficiency of u.l.v. formulations of insecticides and conventional spraying methods for improving cotton yield. Endosulfan and monocrotophos were applied at the rate of 3 //ha using a battery‐operated Ulva micron sprayer. Monocrotophos gave an increased cotton yield of 938.5 and 1235.5 kg seed cotton/ha in the 1975–76 and 1976–77 seasons, respectively, when compared with controls. In the same way, endosulfan gave increased yields of 670.0 and 714.5 kg/ha. Carbaryl, applied at the rate of 1.1 kg w.p./ha using a knapsack sprayer, resulted in increased yields of 587.0 and 763.5 kg/ha, respectively. it is concluded that monocrotophos u.l.v. is the most effective insecticide, and that spraying is a prerequisite for an economical cotton crop.
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Claims 8
Claim · model-written summary
Monocrotophos increased cotton yield by 938.5 in 1975–76.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Monocrotophose0
- Outcome
- cotton yielde0
- Direction
- increasede0
- Value
- 938.5e0
- Qualifier
- 1975–76e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Monocrotophos gave an increased cotton yield of 938.5 and 1235.5 kg seed cotton/ha in the 1975–76 and 1976–77 seasons, respectively, when compared with controls”
t0“rainfed cotton”
Claim · model-written summary
Monocrotophos increased cotton yield by 1235.5 kg seed cotton/ha in 1976–77.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Monocrotophose0
- Outcome
- cotton yielde0
- Direction
- increasede0
- Value
- 1235.5 kg seed cotton/hae0
- Qualifier
- 1976–77e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Monocrotophos gave an increased cotton yield of 938.5 and 1235.5 kg seed cotton/ha in the 1975–76 and 1976–77 seasons, respectively, when compared with controls”
t0“rainfed cotton”
Claim · model-written summary
endosulfan increased cotton yield by 670.0 in 1975–76.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- endosulfane0
- Outcome
- cotton yielde1
- Direction
- increasede0
- Value
- 670.0e0
- Comparator
- controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“endosulfan gave increased yields of 670.0 and 714.5 kg/ha”
t0“rainfed cotton”
e1“for improving cotton yield”
e2“when compared with controls”
Claim · model-written summary
endosulfan increased cotton yield by 714.5 kg/ha in 1976–77.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- endosulfane0
- Outcome
- cotton yielde1
- Direction
- increasede0
- Value
- 714.5 kg/hae0
- Comparator
- controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“endosulfan gave increased yields of 670.0 and 714.5 kg/ha”
t0“rainfed cotton”
e1“for improving cotton yield”
e2“when compared with controls”
Claim · model-written summary
Carbaryl increased cotton yield by 587.0 in 1975–76.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Carbaryle0
- Outcome
- cotton yielde1
- Direction
- increasede0
- Value
- 587.0e0
- Comparator
- controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbaryl, applied at the rate of 1.1 kg w.p./ha using a knapsack sprayer, resulted in increased yields of 587.0 and 763.5 kg/ha”
t0“rainfed cotton”
e1“for improving cotton yield”
e2“when compared with controls”
Claim · model-written summary
Carbaryl increased cotton yield by 763.5 kg/ha in 1976–77.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Carbaryle0
- Outcome
- cotton yielde1
- Direction
- increasede0
- Value
- 763.5 kg/hae0
- Comparator
- controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbaryl, applied at the rate of 1.1 kg w.p./ha using a knapsack sprayer, resulted in increased yields of 587.0 and 763.5 kg/ha”
t0“rainfed cotton”
e1“for improving cotton yield”
e2“when compared with controls”
Claim · model-written summary
The authors conclude monocrotophos u.l.v. is most effective.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- monocrotophos u.l.v. is the most effective insecticidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“monocrotophos u.l.v. is the most effective insecticide”
t0“rainfed cotton”
Claim · model-written summary
The authors conclude spraying is necessary for an economical cotton crop.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- spraying is a prerequisite for an economical cotton crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying is a prerequisite for an economical cotton crop”
The same questions in other papers
endosulfan · yield · Gossypium hirsutum (cotton)Results differ
8 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
7 papers more in this group
See all 11 papers →monocrotophos · yield · Gossypium hirsutum (cotton)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →carbaryl · yield · Gossypium hirsutum (cotton)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.