Abstract
A field experiment was conducted at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during rabi 2011-12 and 2012-13 to study the real time nitrogen management using leaf colour chart (LCC) in maize (Zea mays L.). Basal dose of 20-50 kg N-P 2 O 5 / ha was applied in all the treatments. Top dressing of 60 or 80 N in form of Urea in two splits at LCC 2, 3, 4 and 5 were compared with fixed time N application [50 kg N/ha at 30 DAS + 30 kg N/ha at 60 days after sowing (DAS)]. Top dressing of 50 kg N/ha + 30 kg N/ha when LCC=4 or LCC=5 significantly improved growth and yield attributes viz., plant height, dry matter accumulation/plant, number of leaves/plant, stem diameter, number of internodes/ plant, leaf area index, cob length, cob girth, number of cobs/plant, number of grains/cob, grain weight/plant and 1000-grain weight along with higher grain and stover yields, grain protein content and economic returns over fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DAS.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
Leaf colour chart 4 or 5 nitrogen timing significantly improved maize growth traits relative to fixed timing.
- Treatment
- Top dressing of 50 kg N/ha + 30 kg N/ha when LCC=4 or LCC=5e0
- Outcome
- growth and yield attributese0
- Direction
- improvede0
- Comparator
- fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DASe0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Top dressing of 50 kg N/ha + 30 kg N/ha when LCC=4 or LCC=5 significantly improved growth and yield attributes viz., plant height, dry matter accumulation/plant, number of leaves/plant, stem diameter, number of internodes/ plant, leaf area index, cob length, cob girth, number of cobs/plant, number of grains/cob, grain weight/plant and 1000-grain weight along with higher grain and stover yields, grain protein content and economic returns over fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DAS”
t0“maize (Zea mays L.)”
Claim · model-written summary
Leaf colour chart 4 or 5 nitrogen timing produced higher grain and stover yields than fixed timing.
- Treatment
- LCC=4 or LCC=5e1
- Outcome
- grain and stover yieldse0
- Direction
- highere0
- Comparator
- fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher grain and stover yields, grain protein content and economic returns over fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DAS”
e1“when LCC=4 or LCC=5”
t0“maize (Zea mays L.)”
Claim · model-written summary
Leaf colour chart nitrogen timing produced higher grain protein content and economic returns than fixed timing.
- Treatment
- LCC=4 or LCC=5e0
- Outcome
- grain protein content and economic returnse0
- Direction
- highere0
- Comparator
- fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when LCC=4 or LCC=5 significantly improved growth and yield attributes viz., plant height, dry matter accumulation/plant, number of leaves/plant, stem diameter, number of internodes/ plant, leaf area index, cob length, cob girth, number of cobs/plant, number of grains/cob, grain weight/plant and 1000-grain weight along with higher grain and stover yields, grain protein content and economic returns over fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DAS”
t0“maize (Zea mays L.)”
The same questions in other papers
nitrogen · yield · Zea mays (maize)Positive and negative results
1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative
- positive
- positive
- positive
2,181 papers more in this group
See all 2,185 papers →fertilization · yield · Zea mays (maize)Positive and negative results
3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative
- positive
- positive
- positive
3,904 papers more in this group
See all 3,908 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.