Abstract
In order to evaluate the effect of organic sources of nitrogen on growth, yield, water productivity and economics of rice under different methods of planting in hilly ecosystems of north-east India, an experiment was carried out in kharif seasons of 2013 and 2014 in split plot design with three replications. The results revealed that SRI recorded significantly higher values for all growth parameters (plant height, dry matter accumulation, leaf area index, flag leaf length, tillers/m2, root volume and root dry weight), yield attributing characters (productive tillers/m2, panicle length, grains/panicle, filled grains/panicle and test weight), water productivity (kg grain/m3 of water), grain yield and economics over the CP. This caused 36.84 and 29.41, 34 and 28, 60.0 and 55.3% improvement in water productivity, grain yield and net returns over the CP during 2013 and 2014, respectively. Among the organic sources of nitrogen, application of 25% RDN through FYM+25% RDN through VC+25% RDN through PM+25% RDN through MC significantly enhanced the growth, yield attributing characters, water productivity (0.26 and 0.23 kg of grain/water m3), grain yield (3.53 and 3.41 t/ha), net returns (88 x 103 and 83 x 103 Rs./ha) and B: C ratio (1.84 and 1.74) in 2013 and 2014, respectively.
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Claims 9
Claim · model-written summary
SRI increased rice growth and yield components relative to CP.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SRI recorded significantly higher values for all growth parameters (plant height, dry matter accumulation, leaf area index, flag leaf length, tillers/m2, root volume and root dry weight), yield attributing characters (productive tillers/m2, panicle length, grains/panicle, filled grains/panicle and test weight), water productivity (kg grain/m3 of water), grain yield and economics over the CP”
t0“rice”
Claim · model-written summary
SRI improved water productivity by 36.84% and 29.41% over CP in 2013 and 2014.
- Taxon
- rice
Oryza sativat0 - Outcome
- water productivitye0
- Direction
- improvemente0
- Value
- 36.84 and 29.41e0
- Comparator
- CPe0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“36.84 and 29.41, 34 and 28, 60.0 and 55.3% improvement in water productivity, grain yield and net returns over the CP during 2013 and 2014, respectively”
t0“rice”
Claim · model-written summary
SRI improved grain yield by 34% and 28% over CP in 2013 and 2014.
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“34 and 28, 60.0 and 55.3% improvement in water productivity, grain yield and net returns over the CP during 2013 and 2014, respectively”
t0“rice”
Claim · model-written summary
SRI improved net returns by 60.0% and 55.3% over CP.
- Taxon
- riceOryza sativat0
- Outcome
- net returnse0
- Direction
- improvemente0
- Value
- 60.0 and 55.3%e0
- Comparator
- CPe0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“60.0 and 55.3% improvement in water productivity, grain yield and net returns over the CP during 2013 and 2014, respectively”
t0“rice”
Claim · model-written summary
The combined organic nitrogen treatment enhanced rice growth and yield characters.
- Taxon
- riceOryza sativat0
- Treatment
- 25% RDN through FYM+25% RDN through VC+25% RDN through PM+25% RDN through MCe0
- Outcome
- growth, yield attributing characterse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 25% RDN through FYM+25% RDN through VC+25% RDN through PM+25% RDN through MC significantly enhanced the growth, yield attributing characters, water productivity”
t0“rice”
Claim · model-written summary
The combined organic nitrogen treatment enhanced water productivity to 0.26 and 0.23 kg of grain/water m3.
- Taxon
- riceOryza sativat0
- Outcome
- water productivitye0
- Value
- 0.26 and 0.23 kg of grain/water m3e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water productivity (0.26 and 0.23 kg of grain/water m3)”
t0“rice”
Claim · model-written summary
The combined organic nitrogen treatment enhanced grain yield to 3.53 and 3.41 t/ha.
- Taxon
- riceOryza sativat0
- Outcome
- grain yielde0
- Value
- 3.53 and 3.41 t/hae0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (3.53 and 3.41 t/ha)”
t0“rice”
Claim · model-written summary
The combined organic nitrogen treatment enhanced net returns to 88 x 103 and 83 x 103 Rs./ha.
- Taxon
- riceOryza sativat0
- Outcome
- net returnse0
- Value
- 88 x 103 and 83 x 103 Rs./hae0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net returns (88 x 103 and 83 x 103 Rs./ha)”
t0“rice”
Claim · model-written summary
The combined organic nitrogen treatment enhanced the B: C ratio to 1.84 and 1.74.
- Taxon
- riceOryza sativat0
- Outcome
- B: C ratioe0
- Value
- 1.84 and 1.74e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B: C ratio (1.84 and 1.74)”
t0“rice”
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