Abstract
A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad to determine the critical weed competition period in maize (Zea mays L.) sown under different tillage intensities. The field trial was laid out with split plot design having three replicates with a net plot size of 4.5 m x 6 m. The experiment comprised of three tillage practices namely deep cultivation with disc plough + 3 cultivations with cultivator, rotavator + 3 cultivations with cultivator, and only 3 cultivations with cultivator; and five weed competition periods of 20, 30, 40 days after crop emergence along with weed free and weedy check. The linear increase in the density of weeds (m -2 ) with the competition periods would be due to more time period available for weed seed germination which ultimately resulted in the reduction of total grain yield. Plant population at harvest, number of grains cob -1 , number of grain rows cob -1 , total number of grains cob -1 , 1000-grain weight (g), grain yield, dried stalk yield and biological yield were maximum in disc plough + 3 cultivations with cultivator.
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Claims 5
Claim · model-written summary
Weed density in maize increased linearly with the length of the weed competition period.
- Treatment
- competition periodse2
- Interactor
- weedse2weed
- Outcome
- density of weeds (m -2 )e2
- Direction
- increasee2
- Setting
- Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabade0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad”
e1“critical weed competition period in maize (Zea mays L.) sown under different tillage intensities”
e2“The linear increase in the density of weeds (m -2 ) with the competition periods would be due to more time period available for weed seed germination which ultimately resulted in the reduction of total grain yield”
Claim · model-written summary
Weed competition periods reduced total grain yield of maize relative to weed-free treatment.
- Treatment
- weed competition periodse3
- Interactor
- weedse2weed
- Outcome
- total grain yielde2
- Direction
- reductione2
- Comparator
- weed freee3
- Setting
- Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad”
e1“critical weed competition period in maize (Zea mays L.) sown under different tillage intensities”
e2“The linear increase in the density of weeds (m -2 ) with the competition periods would be due to more time period available for weed seed germination which ultimately resulted in the reduction of total grain yield”
e3“five weed competition periods of 20, 30, 40 days after crop emergence along with weed free and weedy check”
Claim · model-written summary
Disc plough plus three cultivations gave maximum plant population at harvest, grains per cob and grain rows per cob in maize.
- Treatment
- deep cultivation with disc plough + 3 cultivations with cultivatore4
- Outcome
- Plant population at harvest, number of grains cob -1 , number of grain rows cob -1e5
- Direction
- maximume5
- Comparator
- rotavator + 3 cultivations with cultivatore4
- Setting
- Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad”
e1“critical weed competition period in maize (Zea mays L.) sown under different tillage intensities”
e4“three tillage practices namely deep cultivation with disc plough + 3 cultivations with cultivator, rotavator + 3 cultivations with cultivator, and only 3 cultivations with cultivator”
e5“Plant population at harvest, number of grains cob -1 , number of grain rows cob -1 , total number of grains cob -1 , 1000-grain weight (g), grain yield, dried stalk yield and biological yield were maximum in disc plough + 3 cultivations with cultivator”
Claim · model-written summary
Disc plough plus three cultivations gave maximum total grains per cob, 1000-grain weight and grain yield in maize.
- Treatment
- deep cultivation with disc plough + 3 cultivations with cultivatore4
- Outcome
- total number of grains cob -1 , 1000-grain weight (g), grain yielde5
- Direction
- maximume5
- Comparator
- rotavator + 3 cultivations with cultivatore4
- Setting
- Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad”
e1“critical weed competition period in maize (Zea mays L.) sown under different tillage intensities”
e4“three tillage practices namely deep cultivation with disc plough + 3 cultivations with cultivator, rotavator + 3 cultivations with cultivator, and only 3 cultivations with cultivator”
e5“Plant population at harvest, number of grains cob -1 , number of grain rows cob -1 , total number of grains cob -1 , 1000-grain weight (g), grain yield, dried stalk yield and biological yield were maximum in disc plough + 3 cultivations with cultivator”
Claim · model-written summary
Disc plough plus three cultivations gave maximum dried stalk yield and biological yield in maize.
- Treatment
- deep cultivation with disc plough + 3 cultivations with cultivatore4
- Outcome
- dried stalk yield and biological yielde5
- Direction
- maximume5
- Comparator
- rotavator + 3 cultivations with cultivatore4
- Setting
- Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted at the Agronomic Research Area, Department of Agronomy, University of Agriculture, Faisalabad”
e1“critical weed competition period in maize (Zea mays L.) sown under different tillage intensities”
e4“three tillage practices namely deep cultivation with disc plough + 3 cultivations with cultivator, rotavator + 3 cultivations with cultivator, and only 3 cultivations with cultivator”
e5“Plant population at harvest, number of grains cob -1 , number of grain rows cob -1 , total number of grains cob -1 , 1000-grain weight (g), grain yield, dried stalk yield and biological yield were maximum in disc plough + 3 cultivations with cultivator”
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See all 38 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.