Abstract
The field investigation was carried out during kharif 2011 and 2012 at Punjab Agricultural University Ludhiana to see the performance of mechanically transplanted rice (Oryza sativa L.) under split dose of nitrogen. The treatments included 100 kg N ha−1), 125 kg N ha−1) and 150 kg N ha−1) in 2 splits before last puddling (BLP) and 15 days after (N100 (N125(N150 transplanting (DAT), 3 splits (BLP, 15 and 30 DAT) and 4 splits (BLP, 15, 30 and 45 DAT) along with recommended N (125 kg ha−1) in 3 equal splits (BLP, 21 and 42 DAT) and control treatment of 0 kg N ha−1. The grain yield, nutrients (N, P, K) uptake and quality parameters of rice were observed higher with N150 in 4 splits i.e. before last puddling, 15, 30 and 45 DAT as compared to other treatments in both the years.This treatment also resulted in maximum availability of nutrients N and K in soil, which were significantly higher than other treatments during both the years. But available P was observed maximum with N150 in 4 splits, which was at par with N150 in 3 splits during 2011 but in 2012, it was at parwith N150 in 3 splits, N125 and in 4 splits. N150 in 4 splits gave significantly higher brown rice recovery, milled rice recovery and head rice recovery than N100 other treatments. These parameters increased with increase in levels of nitrogen and its split application from zero to 150 kg ha−1. However, there was non-significant effect of different levels of nitrogen and split applications on minimum cooking time, elongation ratio and cooking coefficient of grains. Water absorption ratio by grains from N150 in 4 splits was similar to in 2–3 splits and N125 in 3 splits, but was higher than other treatments. The maximum protein content (5.72–5.75%) was N150 also recorded in N150 in 4 splits. The protein content in grains increased with the split application of different nitrogen levels from 100 to 150 kg N ha−1.
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Claims 13
Claim · model-written summary
N150 in four splits produced higher rice grain yield than other treatments in both years.
- Taxon
- rice
Oryza sativae0 - Treatment
- N150 in 4 splitse0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield, nutrients (N, P, K) uptake and quality parameters of rice were observed higher with N150 in 4 splits i.e. before last puddling, 15, 30 and 45 DAT as compared to other treatments in both the years”
Claim · model-written summary
N150 in four splits produced higher rice N, P and K uptake than other treatments.
- Taxon
- riceOryza sativae0
- Treatment
- N150 in 4 splitse0
- Outcome
- nutrients (N, P, K) uptakee0
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield, nutrients (N, P, K) uptake and quality parameters of rice were observed higher with N150 in 4 splits i.e. before last puddling, 15, 30 and 45 DAT as compared to other treatments in both the years”
Claim · model-written summary
N150 in four splits produced higher rice quality parameters than other treatments.
- Taxon
- riceOryza sativae0
- Treatment
- N150 in 4 splitse0
- Outcome
- quality parameters of ricee0
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield, nutrients (N, P, K) uptake and quality parameters of rice were observed higher with N150 in 4 splits i.e. before last puddling, 15, 30 and 45 DAT as compared to other treatments in both the years”
Claim · model-written summary
N150 in four splits gave maximum available soil N and K, significantly above other treatments.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse1
- Outcome
- availability of nutrients N and K in soile0
- Direction
- maximume0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment also resulted in maximum availability of nutrients N and K in soil, which were significantly higher than other treatments during both the years”
t0“rice”
e1“The grain yield, nutrients (N, P, K) uptake and quality parameters of rice were observed higher with N150 in 4 splits i.e. before last puddling, 15, 30 and 45 DAT as compared to other treatments in both the years”
Claim · model-written summary
Available soil P was maximum with N150 in four splits, at par with N150 in three splits in 2011.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse0
- Outcome
- available Pe0
- Direction
- maximume0
- Comparator
- N150 in 3 splitse0
- Setting
- 2011e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“available P was observed maximum with N150 in 4 splits, which was at par with N150 in 3 splits during 2011”
t0“rice”
Claim · model-written summary
In 2012, available P under N150 in four splits was at par with N150 in three splits and N125 in four splits.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse1
- Outcome
- available Pe1
- Qualifier
- in 2012e0
- Comparator
- N150 in 3 splitse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2012, it was at parwith N150 in 3 splits, N125 and in 4 splits”
t0“rice”
e1“available P was observed maximum with N150 in 4 splits, which was at par with N150 in 3 splits during 2011”
Claim · model-written summary
N150 in four splits gave significantly higher brown, milled and head rice recoveries than N100 and other treatments.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse0
- Outcome
- brown rice recovery, milled rice recovery and head rice recoverye0
- Direction
- highere0
- Comparator
- N100 other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N150 in 4 splits gave significantly higher brown rice recovery, milled rice recovery and head rice recovery than N100 other treatments”
t0“rice”
Claim · model-written summary
Recovery parameters increased as nitrogen levels and splits increased from zero to 150 kg ha−1.
- Taxon
- riceOryza sativat0
- Treatment
- levels of nitrogen and its split applicatione0
- Outcome
- These parameterse0
- Direction
- increasede0
- Value
- 150 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These parameters increased with increase in levels of nitrogen and its split application from zero to 150 kg ha−1”
t0“rice”
Claim · model-written summary
Nitrogen level and splitting had no significant effect on minimum cooking time, elongation ratio and cooking coefficient.
- Taxon
- riceOryza sativat0
- Treatment
- different levels of nitrogen and split applicationse0
- Outcome
- minimum cooking time, elongation ratio and cooking coefficient of grainse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was non-significant effect of different levels of nitrogen and split applications on minimum cooking time, elongation ratio and cooking coefficient of grains”
t0“rice”
Claim · model-written summary
Water absorption ratio under N150 in four splits was similar to N150 in two or three splits and N125 in three splits.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse0
- Outcome
- Water absorption ratio by grainse0
- Direction
- similare0
- Comparator
- N125 in 3 splitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water absorption ratio by grains from N150 in 4 splits was similar to in 2–3 splits and N125 in 3 splits”
t0“rice”
Claim · model-written summary
Water absorption ratio under N150 in four splits was higher than other treatments.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse1
- Outcome
- Water absorption ratioe1
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but was higher than other treatments”
t0“rice”
e1“Water absorption ratio by grains from N150 in 4 splits was similar to in 2–3 splits and N125 in 3 splits”
Claim · model-written summary
N150 in four splits yielded maximum grain protein content of 5.72–5.75%.
- Taxon
- riceOryza sativat0
- Treatment
- N150 in 4 splitse0
- Outcome
- protein contente0
- Direction
- maximume0
- Value
- 5.72–5.75%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum protein content (5.72–5.75%) was N150 also recorded in N150 in 4 splits”
t0“rice”
Claim · model-written summary
Grain protein content increased with splitting nitrogen doses from 100 to 150 kg N ha−1.
- Taxon
- riceOryza sativat0
- Treatment
- split application of different nitrogen levelse0
- Outcome
- protein content in grainse0
- Direction
- increasede0
- Value
- 100 to 150 kg N ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protein content in grains increased with the split application of different nitrogen levels from 100 to 150 kg N ha−1”
t0“rice”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
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