Abstract
Foliar fertilization has been widely used and accepted as an essential part of crop production. The objective of this study was to investigate the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%) from different sources viz. urea, ammonium sulphate (AS) and calcium ammonium nitrate (CAN)) and its application time (15, 30, 45, and 60 days after emergence (DAE)). The experiment was laid out in randomized complete block design (RCBD) with split plot arrangement using four replications at the research farm of the University of Agriculture Peshawar during summer 2010. Phenological development was delayed, while plant height, 1000-grains weight, grains ear -1 , biomass and grain yield as well as harvest index was increased with foliar application of N than water spray (control). Plant height, leaf area, biomass and grain yield was increased when foliar-N was applied late (45 and 60 DAE) than early (15 and 30 DAE) application. It was concluded from the results that late foliar-N application (urea, CAN or AS) about one week before tasseling up to silking could increase maize productivity in the study area.
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Claims 6
Claim · model-written summary
Foliar nitrogen application delayed phenological development of maize compared with water spray.
- Treatment
- foliar application of Ne1
- Outcome
- Phenological developmente1
- Direction
- delayede1
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%)”
e1“Phenological development was delayed, while plant height, 1000-grains weight, grains ear -1 , biomass and grain yield as well as harvest index was increased with foliar application of N than water spray (control)”
Claim · model-written summary
Foliar nitrogen application increased plant height, 1000-grain weight and grains per ear of maize compared with water spray.
- Treatment
- foliar application of Ne1
- Outcome
- plant height, 1000-grains weight, grains ear -1e1
- Direction
- increasede1
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%)”
e1“Phenological development was delayed, while plant height, 1000-grains weight, grains ear -1 , biomass and grain yield as well as harvest index was increased with foliar application of N than water spray (control)”
Claim · model-written summary
Foliar nitrogen application increased biomass, grain yield and harvest index of maize compared with water spray.
- Treatment
- foliar application of Ne1
- Outcome
- biomass and grain yield as well as harvest indexe1
- Direction
- increasede1
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%)”
e1“Phenological development was delayed, while plant height, 1000-grains weight, grains ear -1 , biomass and grain yield as well as harvest index was increased with foliar application of N than water spray (control)”
Claim · model-written summary
Late foliar nitrogen application (45 and 60 DAE) increased plant height, leaf area and biomass of maize compared with early application (15 and 30 DAE).
- Treatment
- late (45 and 60 DAE)e2
- Outcome
- plant height, leaf area, biomasse2
- Direction
- increasede2
- Comparator
- early (15 and 30 DAE) applicatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%)”
e2“Plant height, leaf area, biomass and grain yield was increased when foliar-N was applied late (45 and 60 DAE) than early (15 and 30 DAE) application”
Claim · model-written summary
Late foliar nitrogen application (45 and 60 DAE) increased grain yield of maize compared with early application (15 and 30 DAE).
- Treatment
- late (45 and 60 DAE)e2
- Outcome
- grain yielde2
- Direction
- increasede2
- Comparator
- early (15 and 30 DAE) applicatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the response of maize (Zea mays L., cv. Azam) to foliar application of nitrogen (2%)”
e2“Plant height, leaf area, biomass and grain yield was increased when foliar-N was applied late (45 and 60 DAE) than early (15 and 30 DAE) application”
Claim · model-written summary
Late foliar nitrogen application (urea, CAN or AS) about one week before tasseling up to silking could increase maize productivity.
- Treatment
- late foliar-N application (urea, CAN or AS)e3
- Outcome
- maize productivitye3
- Qualifier
- about one week before tasseling up to silkinge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“late foliar-N application (urea, CAN or AS) about one week before tasseling up to silking could increase maize productivity in the study area”
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 →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.