Abstract
A field experiment was carried out at Chirrori farm of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.) in spilt plot design. The main plots in the study included four irrigation scheduling namely, continuous shallow flooding irrigation at 10 kPa (I1), alternate wetting drying irrigation at 20 kPa (I2), alternate wetting drying irrigation at 20 kPa with irrigation after herbicide application (I3) and alternate wetting drying irrigation at 20 kPa with mid-season drying (45 to 80 DAS irrigation at 40 kPa) (I4) and sub-plot with weed management treatments i.e. weedy treatment (W1), weed free (W2), pre-emergence Pendimethalin @ 1 kg a.i. ha-1 fb post-emergence Bispyribac-Na @ 25 g a.i. ha-1 (W3) and Propanil @ 4 kg a.i. ha-1 + Pendimethalin 1 kg a.i. ha-1 (W4). Continuous shallow flooding irrigation at 10 kPa (I1) reduces the weed density significantly. The applications of Pendimethalin 1 kg a.i. ha-1 at 3 DAS followed by Bispyribac 25 g a.i. ha-1 at 25 DAS (W3) controlled weed very effectively and produce similar yield (6.32 t ha-1) as weed free (W2) (6.67 t ha-1). However, the study also suggested that detail study should be carried out to understand interaction of irrigation scheduling and weed management practices.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 3
Claim · model-written summary
Continuous shallow flooding irrigation at 10 kPa (I1) significantly reduced weed density in dry direct seeded rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- Continuous shallow flooding irrigation at 10 kPa (I1)e0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous shallow flooding irrigation at 10 kPa (I1) reduces the weed density significantly”
t0“rice”
Claim · model-written summary
Pendimethalin at 3 DAS followed by Bispyribac at 25 DAS (W3) controlled weeds very effectively.
- Taxon
- riceOryza sativat0
- Treatment
- Pendimethalin 1 kg a.i. ha-1 at 3 DAS followed by Bispyribac 25 g a.i. ha-1 at 25 DAS (W3)e0
- Interactor
- weede0weed
- Outcome
- controlled weede0
- Direction
- very effectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The applications of Pendimethalin 1 kg a.i. ha-1 at 3 DAS followed by Bispyribac 25 g a.i. ha-1 at 25 DAS (W3) controlled weed very effectively and produce similar yield (6.32 t ha-1) as weed free (W2) (6.67 t ha-1)”
t0“rice”
Claim · model-written summary
Rice yield under W3 (6.32 t/ha) was similar to the weed free treatment (6.67 t/ha).
- Taxon
- riceOryza sativat0
- Treatment
- Pendimethalin 1 kg a.i. ha-1 at 3 DAS followed by Bispyribac 25 g a.i. ha-1 at 25 DAS (W3)e0
- Outcome
- yielde0
- Direction
- similare0
- Value
- 6.32 t ha-1e0
- Qualifier
- 6.67 t ha-1e0
- Comparator
- weed free (W2)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The applications of Pendimethalin 1 kg a.i. ha-1 at 3 DAS followed by Bispyribac 25 g a.i. ha-1 at 25 DAS (W3) controlled weed very effectively and produce similar yield (6.32 t ha-1) as weed free (W2) (6.67 t ha-1)”
t0“rice”
The same questions in other papers
bispyribac · yield · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 31 reporting no difference from an alternative
- positive
- positive
- positive
30 papers more in this group
See all 34 papers →pendimethalin · weed · Oryza sativa (rice)Positive and negative results
124 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
124 papers more in this group
See all 128 papers →pendimethalin · yield · Oryza sativa (rice)Positive and negative results
8 papers in the same direction as this paper · 126 reporting no difference from an alternative
- positive
- positive
- positive
131 papers more in this group
See all 135 papers →bispyribac · weed · Oryza sativa (rice)Results agree
31 papers in the same direction as this paper
- positive
- positive
- positive
28 papers more in this group
See all 32 papers →flooding · weed · Oryza sativa (rice)Positive and negative results
27 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
26 papers more in this group
See all 30 papers →irrigation · weed · Oryza sativa (rice)Positive and negative results
24 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
28 papers more in this group
See all 32 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.