Abstract
A field experiment was conducted in March 2022 at Lamjung Campus, Sundarbazar, Nepal, to study the effects of tillage and nitrogen management practices on soil properties, yield, and yield attributes of the Posilo Makai-1 variety of maize. Two tillage systems (ZT-zero tillage and CT-conventional tillage) and four nitrogen management approaches (N1-traditional farmer’s practice, N2-recommended dose of NPK fertilizer (RDF), N3-50% RDN from urea+50% from FYM (farmyard manure) + recommended dose of phosphorous and potassium, and N4-leaf color chart (LCC)-based application of nitrogen + recommended dose of phosphorus and potassium) as main-plot and sub-plot factors were replicated thrice in a split-plot design. Research results revealed that nitrogen management practices significantly affected yield attributes and yield of the maize. LCC-based nitrogen application produced the highest cob length (15.2 cm), cob diameter (40.70 cm), grains per row (29.7), ear weight (89.0 g), grains per cob (420.03), 100-grain weight (20.70 g), and grain yield (4913.89 kg/ha), while the lowest values for yield attributes and yield were reported from farmer’s practice with the lowest yield (3227.47 kg/ha). Although statistically similar, LCC-managed plots had higher residual soil nitrogen (0.15%), organic matter (2.83%), soil available phosphorus (11.97 kg/ha), and available potassium (142.44 kg/ha), with reduced soil acidity (pH 5.35). However, tillage systems showed no statistically significant effect on yield parameters, yield, and soil parameters. These findings suggest that LCC-based nitrogen management could be a better practice for sustainable soil management and resource conservation in the long run.
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Claims 16
Claim · model-written summary
Nitrogen practices significantly affected maize yield attributes and yield.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen management practices significantly affected yield attributes and yield of the maize”
Claim · model-written summary
LCC nitrogen gave the highest cob length, 15.2 cm.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LCC-based nitrogen application produced the highest cob length (15.2 cm)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest cob diameter, 40.70 cm.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cob diameter (40.70 cm)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest grains per row, 29.7.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grains per row (29.7)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest ear weight, 89.0 g.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ear weight (89.0 g)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest grains per cob, 420.03.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grains per cob (420.03)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest 100-grain weight, 20.70 g.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100-grain weight (20.70 g)”
t0“Maize”
Claim · model-written summary
LCC nitrogen gave the highest grain yield, 4913.89 kg/ha.
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (4913.89 kg/ha)”
t0“Maize”
Claim · model-written summary
Farmer practice gave the lowest grain yield, 3227.47 kg/ha.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmer’s practice with the lowest yield (3227.47 kg/ha)”
t0“Maize”
Claim · model-written summary
LCC plots had higher residual soil nitrogen, 0.15%.
Not reportedTaxon
Verbatim
e0“LCC-managed plots had higher residual soil nitrogen (0.15%)”
Claim · model-written summary
LCC plots had higher soil organic matter, 2.83%.
Not reportedTaxon
Verbatim
e0“organic matter (2.83%)”
Claim · model-written summary
LCC plots had higher available phosphorus, 11.97 kg/ha.
Not reportedTaxon
Verbatim
e0“soil available phosphorus (11.97 kg/ha)”
Claim · model-written summary
LCC plots had higher available potassium, 142.44 kg/ha.
Not reportedTaxon
Verbatim
e0“available potassium (142.44 kg/ha)”
Claim · model-written summary
LCC plots had reduced soil acidity, pH 5.35.
Not reportedTaxon
Verbatim
e0“reduced soil acidity (pH 5.35)”
Claim · model-written summary
Tillage had no statistically significant effect on yield or soil parameters.
- Treatment
- tillage systemse0
- Outcome
- yield parameters, yield, and soil parameterse0
- Direction
- no statistically significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tillage systems showed no statistically significant effect on yield parameters, yield, and soil parameters”
t0“Maize”
Claim · model-written summary
The authors suggest LCC nitrogen management for long-term soil management and resource conservation.
- Outcome
- LCC-based nitrogen management could be a better practice for sustainable soil management and resource conservation in the long rune0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LCC-based nitrogen management could be a better practice for sustainable soil management and resource conservation in the long run”
t0“Maize”
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1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative
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See all 2,185 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.