Abstract
Field experiments were conducted during rainy (kharif) and winter (rabi) seasons of 2004-05 and 2005-06 at Agricultural Research Station, Mannuthy, Thrissur, to find out the effective methods and optimum stage of incorporation of dhaincha (Sesbania aculeate Pers.), to work out the nutrient saving to the current and residual crop and to study the cost effectiveness of the system of concurrent growing of dhaincha in wet-seeded rice (Oryza sativa L.). Concurrently grown dhaincha was incorporated at 2 stages, i e 20 and 30 days after sowing (DAS) by using one of the 3 methods, viz using cono weeder, desiccating dhaincha by spraying 2, 4-D @ 1.0 kg/ha or by spraying met sulfuron methyl @ 5.0 g/ ha and supplied with 2 levels of nitrogen (100 and 75% of the recommended dose). A second crop of transplanted rice was raised in the same plots after dividing the plots equally into 2 sub-plots. Two levels of nitrogen (100 and 75% N) were super imposed over them. Incorporation of concurrently grown dhaincha at the age of 30 days resulted in a yield enhancement to the tune of 0.84 tonnes/ha, increase in profitability (Rs 12 520/ha) with assured addition of 14 tonnes/ ha of organic manures and 70% weed suppression. In terms of weed management and in places where it is difficult to use cono weeder, dhaincha can be effectively incorporated by spraying 2, 4 -D or metsulfuron methyl without affecting the yield. By growing of dhaincha along with rice and its subsequent incorporation helped to reduce the use of nitrogen fertilizer to the current crop by 25% without affecting the yield. To realize the highest yield (3.88tonnes/ha) from succeeding transplanted rice, 100% of the recommended N should be supplied to the succeeding rice (Oryza sativa L.) in the rice-rice system.
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Claims 7
Claim · model-written summary
Incorporating dhaincha at 30 days enhanced rice yield by 0.84 tonnes/ha.
- Taxon
- rice
Oryza sativat0 - Treatment
- Incorporation of concurrently grown dhaincha at the age of 30 dayse0
- Outcome
- yielde0
- Direction
- enhancemente0
- Value
- 0.84 tonnes/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of concurrently grown dhaincha at the age of 30 days resulted in a yield enhancement to the tune of 0.84 tonnes/ha”
t0“rice (Oryza sativa)”
Claim · model-written summary
The 30-day incorporation increased profitability by Rs 12 520/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Incorporation of concurrently grown dhaincha at the age of 30 dayse0
- Outcome
- profitabilitye0
- Direction
- increasee0
- Value
- Rs 12 520/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of concurrently grown dhaincha at the age of 30 days resulted in a yield enhancement to the tune of 0.84 tonnes/ha, increase in profitability (Rs 12 520/ha)”
t0“rice (Oryza sativa)”
Claim · model-written summary
The incorporation added 14 tonnes/ha organic manures.
- Taxon
- riceOryza sativat0
- Outcome
- organic manurese0
- Value
- 14 tonnes/ hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“assured addition of 14 tonnes/ ha of organic manures”
t0“rice (Oryza sativa)”
Claim · model-written summary
The incorporation suppressed weeds by 70%.
- Taxon
- riceOryza sativat0
- Treatment
- Incorporation of concurrently grown dhaincha at the age of 30 dayse1
- Interactor
- weede0weed
- Outcome
- weed suppressione0
- Value
- 70%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70% weed suppression”
e1“Incorporation of concurrently grown dhaincha at the age of 30 days”
t0“rice (Oryza sativa)”
Claim · model-written summary
2,4-D or metsulfuron methyl could incorporate dhaincha without affecting yield.
- Taxon
- riceOryza sativat0
- Treatment
- spraying 2, 4 -D or metsulfuron methyle0
- Outcome
- yielde0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dhaincha can be effectively incorporated by spraying 2, 4 -D or metsulfuron methyl without affecting the yield”
t0“rice (Oryza sativa)”
Claim · model-written summary
Growing and incorporating dhaincha reduced current rice nitrogen fertilizer use by 25% without affecting yield.
- Taxon
- riceOryza sativae0
- Treatment
- growing of dhaincha along with rice and its subsequent incorporatione0
- Outcome
- use of nitrogen fertilizere0
- Direction
- reducee0
- Value
- 25%e0
- Qualifier
- without affecting the yielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growing of dhaincha along with rice and its subsequent incorporation helped to reduce the use of nitrogen fertilizer to the current crop by 25% without affecting the yield”
Claim · model-written summary
The authors recommended full nitrogen for succeeding rice to achieve the highest yield of 3.88 tonnes/ha.
- Taxon
- riceOryza sativae0
- Outcome
- 100% of the recommended N should be suppliede0
- Value
- 3.88tonnes/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To realize the highest yield (3.88tonnes/ha) from succeeding transplanted rice, 100% of the recommended N should be supplied to the succeeding rice (Oryza sativa L.)”
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