Abstract
A field experiment was conducted to investigate the effects of three tillage systems and three corn plant populations on selected soil physical properties and yield components of sweet corn for Serdang soil series (Typic Paleodults) at the research farm of University Putra Malaysia (UPM) in Malaysia. The experimental design with three replications was a 2×3 factorial treatments based on randomized complete block design (RCBD) for soil analysis and a 3×3 factorial treatments based on RCBD for yield and yield components analysis of sweet corn (Zea mays). The three tillage systems were moldboard plow followed by once disc harrowing (MPD), disc plow followed by once disc harrowing (DPD) and rotary cultivator (RC) only, as control on soil physical properties at two depths of 0-10 cm and 20-30 cm; and also their effects on yield and selected yield components of sweet corn at three seeding rates or seed spacing of 20, 30 and 40 cm. The results showed that the measured soil physical properties were homogeneous at three plots and the two depths. Although WI (water infiltration) was higher and resistance to penetration (RP) was lower in RC plot at the upper layer, this condition had no influence on crop yield. The highest and minimum value of crop yield at given seed spacing occurred in DPD plot and MPD and RC plots, respectively. Interaction effects of the two factors, tillage and planting density were found to be significant on row length of kernels on cob corn, yield of sweet corn and total weight of dry matter.
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Claims 10
Claim · model-written summary
Measured soil physical properties were homogeneous across three plots and two depths.
Verbatim
e0“The results showed that the measured soil physical properties were homogeneous at three plots and the two depths.”
t0“sweet corn”
Claim · model-written summary
Water infiltration was higher in the rotary cultivator plot at the upper soil layer.
- Taxon
- sweet cornt0
- Treatment
- rotary cultivator (RC)e1
- Outcome
- water infiltratione0
- Direction
- highere0
- Qualifier
- upper layere0
Not reportedComparator
Verbatim
e0“WI (water infiltration) was higher and resistance to penetration (RP) was lower in RC plot at the upper layer”
e1“rotary cultivator (RC) only, as control”
t0“sweet corn”
Claim · model-written summary
Resistance to penetration was lower in the rotary cultivator plot at the upper soil layer.
- Taxon
- sweet cornt0
- Treatment
- rotary cultivator (RC)e1
- Outcome
- resistance to penetration (RP)e0
- Direction
- lowere0
- Qualifier
- upper layere0
Not reportedComparator
Verbatim
e0“resistance to penetration (RP) was lower in RC plot at the upper layer”
e1“rotary cultivator (RC) only, as control”
t0“sweet corn”
Claim · model-written summary
The upper layer soil infiltration and penetration differences had no influence on sweet corn yield.
Verbatim
e0“this condition had no influence on crop yield.”
e1“WI (water infiltration) was higher and resistance to penetration (RP) was lower in RC plot at the upper layer”
t0“sweet corn”
Claim · model-written summary
At the given seed spacing, the disc plow and disc harrow plot had the highest sweet corn yield.
Verbatim
e0“The highest and minimum value of crop yield at given seed spacing occurred in DPD plot and MPD and RC plots, respectively.”
e1“disc plow followed by once disc harrowing (DPD)”
t0“sweet corn”
Claim · model-written summary
At the given seed spacing, moldboard plow and disc harrow plots had minimum sweet corn yield.
Verbatim
e0“The highest and minimum value of crop yield at given seed spacing occurred in DPD plot and MPD and RC plots, respectively.”
e1“moldboard plow followed by once disc harrowing (MPD)”
t0“sweet corn”
Claim · model-written summary
At the given seed spacing, rotary cultivator plots had minimum sweet corn yield.
Verbatim
e0“The highest and minimum value of crop yield at given seed spacing occurred in DPD plot and MPD and RC plots, respectively.”
e1“rotary cultivator (RC) only”
t0“sweet corn”
Claim · model-written summary
Tillage and planting density had a significant interaction effect on kernel row length on the cob.
Not reportedComparatorDirection
Verbatim
e0“Interaction effects of the two factors, tillage and planting density were found to be significant on row length of kernels on cob corn, yield of sweet corn and total weight of dry matter.”
t0“sweet corn”
Claim · model-written summary
Tillage and planting density had a significant interaction effect on sweet corn yield.
Not reportedComparatorDirection
Verbatim
e0“Interaction effects of the two factors, tillage and planting density were found to be significant on row length of kernels on cob corn, yield of sweet corn and total weight of dry matter.”
t0“sweet corn”
Claim · model-written summary
Tillage and planting density had a significant interaction effect on total dry matter weight.
Not reportedComparatorDirection
Verbatim
e0“Interaction effects of the two factors, tillage and planting density were found to be significant on row length of kernels on cob corn, yield of sweet corn and total weight of dry matter.”
t0“sweet corn”
The same questions in other papers
(1S)-isoindoline-1-carboxylic acid · yield · Zea mays (maize)Positive and negative results
4 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
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See all 13 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.