Abstract
A field experiment was conducted during the dry seasons of 2012 and 2013 in Irrigation Research Station, Talata Mafara, Zamfara State, Latitude 12°34ʹ00ʺ N and Longitude 6°04ʹ00ʺ E 488m above sea level in the Sudan savanna agro-ecological zone. The objective of the research was to test the effect of rice varieties to various levels of nitrogen (N) fertilization under irrigation. The experiment was laid out in a Complete Randomize Block Design (CRBD) using split plot arrangement and was replicated three times. Three rice varieties (Faro 44, 45 and 57) were allocated to the main plot and three nitrogen levels (60, 120 and 180 kg N ha-1) were allocated to the sub plot. The gross and net plot sizes were 5 x 4 and 3 x 3 m respectively. Weeds were controlled using Glyphosate as pre-plant, Butachlor as pre-emergence and Orizo plus as post-emergence herbicides and supplemented with hand pulling at 9 WAS. Fertilizer was applied in two split doses. First half was applied at planting using NPK and the remaining half at 6 WAT using Urea (46 % N). Data collected were analyzed using analysis of variance (ANOVA) and significant means were separated using DMRT at 5 % level of probability. The result of the effect of variety on growth parameters showed that Faro 44 recorded higher days to 50 % anthesis but was significantly (p≤0.05) shorter in height than Faro 57. The effect of the treatment on yield parameters showed that Faro 44 recorded higher thrashing percentage, 1000-grain weight and number of grain panicle-1 significantly (p≤0.05) higher than Faro 45 and 57 in all the seasons. Increasing nitrogen levels from 60 kg N ha-1 significantly increased growth and yield parameters. Application of 180 kg N ha-1 on Faro 44 is hereby recommended for rice growing in the ecological zone.
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 6
Claim · model-written summary
Faro 44 had more days to 50% anthesis than the compared varieties.
- Taxon
- rice
Oryza sativat0 - Material
- Faro 44e0
- Outcome
- days to 50 % anthesise0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Faro 44 recorded higher days to 50 % anthesis”
t0“rice”
Claim · model-written summary
Faro 44 was significantly shorter than Faro 57.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Faro 44 recorded higher days to 50 % anthesis but was significantly (p≤0.05) shorter in height than Faro 57”
t0“rice”
Claim · model-written summary
Faro 44 had significantly higher thrashing percentage, 1000-grain weight and grains per panicle than Faro 45 and 57.
- Taxon
- riceOryza sativat0
- Material
- Faro 44e0
- Outcome
- thrashing percentage, 1000-grain weight and number of grain panicle-1e0
- Direction
- highere0
- Comparator
- Faro 45 and 57e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Faro 44 recorded higher thrashing percentage, 1000-grain weight and number of grain panicle-1 significantly (p≤0.05) higher than Faro 45 and 57 in all the seasons”
t0“rice”
Claim · model-written summary
Increasing nitrogen above 60 kg N ha-1 significantly increased growth parameters.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing nitrogen levelse0
- Outcome
- growthe0
- Direction
- increasede0
- Comparator
- 60 kg N ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing nitrogen levels from 60 kg N ha-1 significantly increased growth and yield parameters”
t0“rice”
Claim · model-written summary
Increasing nitrogen above 60 kg N ha-1 significantly increased yield parameters.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing nitrogen levelse0
- Outcome
- yield parameterse0
- Direction
- increasede0
- Comparator
- 60 kg N ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing nitrogen levels from 60 kg N ha-1 significantly increased growth and yield parameters”
t0“rice”
Claim · model-written summary
The authors recommend 180 kg N ha-1 for Faro 44 rice in the ecological zone.
- Taxon
- riceOryza sativae0
- Material
- Faro 44e0
- Outcome
- Application of 180 kg N ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 180 kg N ha-1 on Faro 44 is hereby recommended for rice growing in the ecological zone”
The same questions in other papers
nitrogen · growth · Oryza sativa (rice)Positive and negative results
401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative
- negative
- negative
- negative
507 papers more in this group
See all 511 papers →nitrogen · yield · Oryza sativa (rice)Positive and negative results
1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative
- negative
- negative
- negative
2,041 papers more in this group
See all 2,045 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.