Abstract
An investigation on nano nitrogen and nano zinc with different levels of nitrogen approaches on growth and yield of paddy was conducted during rabi and kharif seasons of 2020-21 and 2021-22 at Krishi Vigyana Kendra, Gangavathi, Koppal, Karnataka, India. The experiment was laid out in split-split plot design with three replications, which consisted of four levels of nitrogen in main plots, three levels of nano nitrogen in sub plots and two levels of nano zinc in sub-sub plots. The treatment with application of 125 per cent Recommended Dose of Nitrogen (RDN) has recorded significantly taller plants (97.11 and 96.54 cm), higher number of tillers hill-1 (19.65 and18.14) and total dry matter (70.06 and 64.54 g hill-1) at harvest stage of crop and the Soil Plant Analysis Development (SPAD) values (46.69 and 42.60) and Normalized Difference Vegetation Index (NDVI) values (0.85 and 0.82) at flowering stage of crop, Similarly, foliar spray of nitrogen @ 4000 ppm has recorded significantly higher plant height (95.44 and 91.33 cm), higher number of tillers hill-1 (17.75 and 16.01), total dry matter (66.84 and 62.31 g hill-1) SPAD values at flowering stage (44.89 and 41.29), NDVI values at flowering stage (0.81 and 0.74), grain yield (5623 & and 6840 kg ha-1) and straw yield (5352 and 6581 kg ha-1). Interaction effect showed non-significant effect with different combination treatments.
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Claims 13
Claim · model-written summary
Applying 125% RDN significantly increased paddy plant height, with reported values 97.11 and 96.54 cm.
- Taxon
- Paddyt0
- Treatment
- 125 per cent Recommended Dose of Nitrogen (RDN)e0
- Outcome
- plantse0
- Direction
- tallere0
- Value
- 97.11 and 96.54 cme0
Not reportedComparator
Verbatim
e0“application of 125 per cent Recommended Dose of Nitrogen (RDN) has recorded significantly taller plants (97.11 and 96.54 cm)”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Applying 125% RDN significantly increased paddy tiller number, with values 19.65 and 18.14 per hill.
- Taxon
- Paddyt0
- Treatment
- 125 per cent Recommended Dose of Nitrogen (RDN)e1
- Outcome
- number of tillers hill-1e0
- Direction
- highere0
- Value
- 19.65 and18.14e0
Not reportedComparator
Verbatim
e0“higher number of tillers hill-1 (19.65 and18.14)”
e1“125 per cent Recommended Dose of Nitrogen (RDN)”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Applying 125% RDN increased paddy total dry matter, with values 70.06 and 64.54 g per hill.
- Taxon
- Paddyt0
- Treatment
- 125 per cent Recommended Dose of Nitrogen (RDN)e1
- Outcome
- total dry mattere0
- Value
- 70.06 and 64.54 g hill-1e0
Not reportedComparatorDirection
Verbatim
e0“total dry matter (70.06 and 64.54 g hill-1)”
e1“125 per cent Recommended Dose of Nitrogen (RDN)”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Applying 125% RDN gave paddy SPAD values of 46.69 and 42.60.
- Taxon
- Paddyt0
- Treatment
- 125 per cent Recommended Dose of Nitrogen (RDN)e1
- Outcome
- Soil Plant Analysis Development (SPAD) valuese0
- Value
- 46.69 and 42.60e0
Not reportedComparatorDirection
Verbatim
e0“Soil Plant Analysis Development (SPAD) values (46.69 and 42.60)”
e1“125 per cent Recommended Dose of Nitrogen (RDN)”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Applying 125% RDN gave paddy NDVI values of 0.85 and 0.82.
- Taxon
- Paddyt0
- Treatment
- 125 per cent Recommended Dose of Nitrogen (RDN)e1
- Outcome
- Normalized Difference Vegetation Index (NDVI) valuese0
- Value
- 0.85 and 0.82e0
Not reportedComparatorDirection
Verbatim
e0“Normalized Difference Vegetation Index (NDVI) values (0.85 and 0.82)”
e1“125 per cent Recommended Dose of Nitrogen (RDN)”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm significantly increased paddy plant height, with values 95.44 and 91.33 cm.
- Treatment
- foliar spray of nitrogen @ 4000 ppme0
- Outcome
- plant heighte0
- Direction
- highere0
- Value
- 95.44 and 91.33 cme0
Not reportedTaxonComparator
Verbatim
e0“foliar spray of nitrogen @ 4000 ppm has recorded significantly higher plant height (95.44 and 91.33 cm)”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm increased paddy tillers per hill to 17.75 and 16.01.
- Taxon
- Paddyt0
- Treatment
- foliar spray of nitrogen @ 4000 ppme1
- Outcome
- number of tillers hill-1e0
- Direction
- highere0
- Value
- 17.75 and 16.01e0
Not reportedComparator
Verbatim
e0“higher number of tillers hill-1 (17.75 and 16.01)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm gave paddy total dry matter of 66.84 and 62.31 g per hill.
- Taxon
- Paddyt0
- Treatment
- foliar spray of nitrogen @ 4000 ppme1
- Outcome
- total dry mattere0
- Value
- 66.84 and 62.31 g hill-1e0
Not reportedComparatorDirection
Verbatim
e0“total dry matter (66.84 and 62.31 g hill-1)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm gave paddy SPAD values of 44.89 and 41.29 at flowering.
- Taxon
- Paddyt0
- Organ / stage
- flowering stagee0
- Treatment
- foliar spray of nitrogen @ 4000 ppme1
- Outcome
- SPAD valuese0
- Value
- 44.89 and 41.29e0
Not reportedComparatorDirection
Verbatim
e0“SPAD values at flowering stage (44.89 and 41.29)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm gave paddy NDVI values of 0.81 and 0.74 at flowering.
Not reportedComparatorDirection
Verbatim
e0“NDVI values at flowering stage (0.81 and 0.74)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm gave paddy grain yield of 5623 and 6840 kg per hectare.
- Taxon
- Paddyt0
- Treatment
- foliar spray of nitrogen @ 4000 ppme1
- Outcome
- grain yielde0
- Value
- 5623 & and 6840 kg ha-1e0
Not reportedComparatorDirection
Verbatim
e0“grain yield (5623 & and 6840 kg ha-1)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
Foliar nitrogen spray at 4000 ppm gave paddy straw yield of 5352 and 6581 kg per hectare.
- Taxon
- Paddyt0
- Treatment
- foliar spray of nitrogen @ 4000 ppme1
- Outcome
- straw yielde0
- Value
- 5352 and 6581 kg ha-1e0
Not reportedComparatorDirection
Verbatim
e0“straw yield (5352 and 6581 kg ha-1)”
e1“foliar spray of nitrogen @ 4000 ppm”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
Claim · model-written summary
The interactions among paddy fertilizer treatment combinations were statistically nonsignificant.
Not reportedComparatorDirection
Verbatim
e0“Interaction effect showed non-significant effect with different combination treatments.”
t0“Yield of Paddy in Paddy-Paddy Cropping System”
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