Abstract
Long-term field trials in rice-wheat system were conducted in Typic Ustochrept alluvial sandy loam soils [rice (Saket-4) and wheat (HD-2285)] with combinations of eight tillage systems and two moisture regimes. In direct seeded rice, tillage systems as well as moisture regimes were significantly influenced weed biomass and dry matter production. Significantly higher weed biomass was recorded in direct seeded compared to puddled condition. Considerably higher plant height, panicle length and grain yield of rice was found under puddled (4.20 t ha−1) compared to direct seeded (2.31 t ha−1) condition. While in wheat, considerably higher ear length, number of ears and yield was recorded when grown after direct seeded rice (4.01 t ha−1) compared to puddled (3.86 t ha−1) condition indicating adverse impact of puddling on succeeding crop of wheat. After direct seeded rice, grain yield of wheat was not significantly affected by levels of tillage. Maximum productivity of the system was obtained with conventional puddling in rice and conventional tillage in following wheat under well watered conditions. Almost, a similar trend was found in total harvestable biomass. In rice, considerably higher harvest index (HI) was recorded under puddled (39.6%) compared to direct seeded (31.3%) condition. However, it was not much affected by tillage systems practiced in fallowing wheat. In the system, considerably higher HI was found under puddled (40.6%) compared to direct seeded (36.0%) condition. It was found that after direct seeded rice, wheat could be grown with reduced tillage without significantly affecting its yield which resulted in saving of energy and money.
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Claims 8
Claim · model-written summary
Tillage systems and moisture regimes significantly influenced weed biomass and dry matter production in direct seeded rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- tillage systems as well as moisture regimese0
- Outcome
- weed biomass and dry matter productione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In direct seeded rice, tillage systems as well as moisture regimes were significantly influenced weed biomass and dry matter production”
Claim · model-written summary
Weed biomass was significantly higher in direct seeded rice than under puddled condition.
- Taxon
- riceOryza sativae0
- Treatment
- direct seedede1
- Outcome
- weed biomasse1
- Direction
- highere1
- Comparator
- puddled conditione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In direct seeded rice, tillage systems as well as moisture regimes were significantly influenced weed biomass and dry matter production”
e1“Significantly higher weed biomass was recorded in direct seeded compared to puddled condition”
Claim · model-written summary
Grain yield of rice was higher under puddled condition (4.20 t ha−1) than under direct seeded condition (2.31 t ha−1).
- Taxon
- riceOryza sativae2
- Treatment
- puddlede2
- Outcome
- grain yielde2
- Direction
- highere2
- Value
- 4.20 t ha−1e2
- Comparator
- direct seedede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Considerably higher plant height, panicle length and grain yield of rice was found under puddled (4.20 t ha−1) compared to direct seeded (2.31 t ha−1) condition”
Claim · model-written summary
Wheat yield was higher when grown after direct seeded rice (4.01 t ha−1) than after puddled rice (3.86 t ha−1).
- Taxon
- wheat
Triticum aestivume3 - Treatment
- after direct seeded ricee3
- Outcome
- yielde3
- Direction
- highere3
- Value
- 4.01 t ha−1e3
- Comparator
- puddlede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“While in wheat, considerably higher ear length, number of ears and yield was recorded when grown after direct seeded rice (4.01 t ha−1) compared to puddled (3.86 t ha−1) condition”
Claim · model-written summary
Harvest index of rice was higher under puddled condition (39.6%) than under direct seeded condition (31.3%).
- Taxon
- riceOryza sativae4
- Treatment
- puddlede4
- Outcome
- harvest indexe4
- Direction
- highere4
- Value
- 39.6%e4
- Comparator
- direct seedede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In rice, considerably higher harvest index (HI) was recorded under puddled (39.6%) compared to direct seeded (31.3%) condition”
Claim · model-written summary
Harvest index in the rice-wheat system was higher under puddled condition (40.6%) than under direct seeded condition (36.0%).
- Taxon
- riceOryza sativae0
- Treatment
- puddlede5
- Outcome
- HIe5
- Direction
- highere5
- Value
- 40.6%e5
- Comparator
- direct seedede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In direct seeded rice, tillage systems as well as moisture regimes were significantly influenced weed biomass and dry matter production”
e5“In the system, considerably higher HI was found under puddled (40.6%) compared to direct seeded (36.0%) condition”
Claim · model-written summary
Maximum productivity of the rice-wheat system was obtained with conventional puddling in rice and conventional tillage in wheat under well watered conditions.
- Taxon
- riceOryza sativae6
- Treatment
- conventional puddling in rice and conventional tillage in following wheate6
- Outcome
- productivity of the systeme6
- Direction
- Maximume6
- Qualifier
- under well watered conditionse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Maximum productivity of the system was obtained with conventional puddling in rice and conventional tillage in following wheat under well watered conditions”
Claim · model-written summary
Wheat grown after direct seeded rice could be grown with reduced tillage without significantly affecting its yield.
- Taxon
- wheatTriticum aestivume7
- Treatment
- reduced tillagee7
- Outcome
- yielde7
- Direction
- no_changeinferrede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“After direct seeded rice, wheat could be grown with reduced tillage without significantly affecting its yield”
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