Abstract
Not only reducing the carry-over effects of quinclorac [3, 7-dichloro-8-quinoline carboxylic acid] used in paddy field to some following vegetable crops but also rationalizing agro-ecology conservation and farm economy, the reducing feasibility of application rates by various cropping patterns and application timing after rice seeding and transplanting. Four cropping patterns namely dry direct seeding(DDS), flooded direct seed(FDS), transplanting of 8 days old early seedlings(EST) and 25 days old machinery seedling(MST) were experimented with 7 application timings as 0, 5, 10, 15, 20, 25, 30 days after seeding/transplanting and 9 levels of application rates as 0, 75, 150, 225, 300, 375, 450, 525, and 600g ai/ha of the chemical, respectively. Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli as influenced by various cropping patterns with application timing could be evaluated as follows : A. Dry direct seeding : The minimized application rate at application timing upto 10 days after seeding (DAS) was counted 150g ai/ha, and delaying upto 15-30 DAS, the rates were increased upto 225-525g ai/ha. B. Flooded direct seeding and transplanting : The application rates were minimized 75g ai/ha at application timing upto 10 days after seeding/transplanting(DAS/T), 150g ai/haupto 15 DAS/T, and 225g ai/ha at later than 20 DAS/T, respectively.
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Claims 5
Claim · model-written summary
Dry direct seeding needs at most 150 g ai/ha quinclorac when applied up to 10 days after seeding.
- Taxon
- rice
Oryza sativae0 - Treatment
- quinclorace0
- Interactor
- Echinochloa crus-galli
Echinochloa crus-gallie0weed - Outcome
- minimum application ratee0
- Direction
- minimizede1
- Value
- 150g ai/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli”
e1“A. Dry direct seeding : The minimized application rate at application timing upto 10 days after seeding (DAS) was counted 150g ai/ha, and delaying upto 15-30 DAS, the rates were increased upto 225-525g ai/ha”
Claim · model-written summary
Delaying quinclorac application to 15-30 days after seeding in dry direct seeding increased the required rate to 225-525 g ai/ha.
- Taxon
- riceOryza sativae0
- Treatment
- delaying upto 15-30 DASe1
- Interactor
- Echinochloa crus-galliEchinochloa crus-gallie0weed
- Outcome
- ratese1
- Direction
- increasede1
- Value
- 225-525g ai/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli”
e1“A. Dry direct seeding : The minimized application rate at application timing upto 10 days after seeding (DAS) was counted 150g ai/ha, and delaying upto 15-30 DAS, the rates were increased upto 225-525g ai/ha”
Claim · model-written summary
Flooded direct seeding and transplanting needs at most 75 g ai/ha quinclorac when applied up to 10 days after seeding or transplanting.
- Taxon
- riceOryza sativae0
- Treatment
- application timing upto 10 days after seeding/transplanting(DAS/T)e2
- Interactor
- Echinochloa crus-galliEchinochloa crus-gallie0weed
- Outcome
- application ratese2
- Direction
- minimizede2
- Value
- 75g ai/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli”
e2“B. Flooded direct seeding and transplanting : The application rates were minimized 75g ai/ha at application timing upto 10 days after seeding/transplanting(DAS/T), 150g ai/haupto 15 DAS/T, and 225g ai/ha at later than 20 DAS/T”
Claim · model-written summary
Flooded direct seeding and transplanting needs 150 g ai/ha quinclorac when applied up to 15 days after seeding or transplanting.
- Taxon
- riceOryza sativae0
- Treatment
- upto 15 DAS/Te2
- Interactor
- Echinochloa crus-galliEchinochloa crus-gallie0weed
- Outcome
- application ratese2
- Direction
- minimizede2
- Value
- 150g ai/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli”
e2“B. Flooded direct seeding and transplanting : The application rates were minimized 75g ai/ha at application timing upto 10 days after seeding/transplanting(DAS/T), 150g ai/haupto 15 DAS/T, and 225g ai/ha at later than 20 DAS/T”
Claim · model-written summary
Flooded direct seeding and transplanting needs 225 g ai/ha quinclorac when applied later than 20 days after seeding or transplanting.
- Taxon
- riceOryza sativae0
- Treatment
- at later than 20 DAS/Te2
- Interactor
- Echinochloa crus-galliEchinochloa crus-gallie0weed
- Outcome
- application ratese2
- Direction
- minimizede2
- Value
- 225g ai/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the maximum permitted limit of rice phytotoxicity, the minimum application rate of quinclorac to complete control of Echinochloa crus-galli”
e2“B. Flooded direct seeding and transplanting : The application rates were minimized 75g ai/ha at application timing upto 10 days after seeding/transplanting(DAS/T), 150g ai/haupto 15 DAS/T, and 225g ai/ha at later than 20 DAS/T”
The same questions in other papers
quinclorac · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
10 papers more in this group
See all 14 papers →transplanting · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 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.