Abstract
A field experiment was conducted during kharif 2009 at the Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology & Sciences, Allahabad, Uttar Pradesh, India to study the effect of different spilt doses of nitrogen (N), Leaf Colour Chart (LCC) based nitrogen management on growth and yield of transplanted rice. Nitrogen management practices were consisted of application of 150 kg N ha-1 in different split doses (Two equal splits – 1/2 at basal, 1/2 at active tillering, Three splits – 1/2 at basal, 1/4 at active tillering, 1/4 at panicle initiation, Three splits 1/3 at basal, 1/3 at active tillering, 1/3 at panicle initiation, Four splits – 1/4 at basal, 1/4 at active tillering, 1/4 at maximum tillering, 1/4 at panicle initiation, and Four splits – 1/3 at basal, 1/3 at active tillering, 1/6 at maximum tillering, 1/6 at panicle initiation), LCC 3 and LCC 4 with 20 kg N ha-1 as basal with 23 and 28 kg N ha-1 respectively based on weekly reading. The results revealed that nitrogen management at LCC value of 4 (4 splits; 132 kg N ha-1) produced significantly higher plant height (113.4 cm), crop and relative growth rates 21.84 g m-2 day-1 and 0.072 g g-1 day-1 respectively, effective tillers hill-1 (14.60), grains panicle-1 (162.13) and grain yield (60.70 q ha-1) than LCC value of 3 (4 splits; 112 kg N ha-1) that produced grain yield of (42.30 q ha-1) as well as other nitrogen management treatments (N at 150 kg ha-1). Thus, considering the influence of LCC based nitrogen application on productivity and profitability of rice and saving of fertilizer N. It is concluded that the LCC offers gigantic opportunities to increase N use efficiency, rice yield and net return for farmers in Allahabad region of Eastern Uttar Pradesh.
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Claims 7
Claim · model-written summary
LCC 4 nitrogen management increased plant height compared with LCC 3 and other nitrogen treatments.
- Taxon
- Rice
Oryza sativat0 - Treatment
- nitrogen management at LCC value of 4 (4 splits; 132 kg N ha-1)e0
- Outcome
- plant heighte0
- Direction
- highere0
- Value
- 113.4 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen management at LCC value of 4 (4 splits; 132 kg N ha-1) produced significantly higher plant height (113.4 cm)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
LCC 4 increased crop growth rate.
- Taxon
- RiceOryza sativat0
- Outcome
- crop and relative growth ratese0
- Value
- 21.84 g m-2 day-1e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop and relative growth rates 21.84 g m-2 day-1 and 0.072 g g-1 day-1 respectively”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
LCC 4 increased relative growth rate.
- Taxon
- RiceOryza sativat0
- Outcome
- relative growth ratese0
- Value
- 0.072 g g-1 day-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative growth rates 21.84 g m-2 day-1 and 0.072 g g-1 day-1 respectively”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
LCC 4 produced 14.60 effective tillers per hill.
- Taxon
- RiceOryza sativat0
- Outcome
- effective tillers hill-1e0
- Value
- 14.60e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effective tillers hill-1 (14.60)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
LCC 4 produced 162.13 grains per panicle.
- Taxon
- RiceOryza sativat0
- Outcome
- grains panicle-1e0
- Value
- 162.13e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grains panicle-1 (162.13)”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
LCC 4 produced higher grain yield than LCC 3 and other treatments, at 60.70 q ha-1 versus 42.30 q ha-1 for LCC 3.
- Taxon
- RiceOryza sativat0
- Outcome
- grain yielde0
- Value
- 60.70 q ha-1e0
- Qualifier
- 42.30 q ha-1e0
- Comparator
- LCC value of 3 (4 splits; 112 kg N ha-1)e0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (60.70 q ha-1) than LCC value of 3 (4 splits; 112 kg N ha-1) that produced grain yield of (42.30 q ha-1) as well as other nitrogen management treatments”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
The authors concluded that LCC management can increase nitrogen use efficiency, rice yield and farmer net return.
- Taxon
- riceOryza sativae0
- Outcome
- N use efficiency, rice yield and net returne0
- Direction
- increasee0
- Setting
- Allahabad region of Eastern Uttar Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LCC offers gigantic opportunities to increase N use efficiency, rice yield and net return for farmers in Allahabad region of Eastern Uttar Pradesh”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative
- negative
- negative
- negative
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