Abstract
A field experiment was carried out during the rainy season (June-October) of 1998 at the Research Farm of the Indian Agricultural Research Institute, New Delhi, India to study the effect of coating prilled urea with eco-friendly neem ( Azadirachta indica A. Juss.) formulations in improving the efficiency of nitrogen use in hybrid rice. The experiment was laid out in a split-plot design with three replications. Two rice cultivars, hybrid rice (NDHR-3) and Pusa Basmati-1, formed the main plots, with the levels of nitrogen (0, 60, 120 and 180 kg N ha -1 ) and various forms of urea at 120 kg N ha -1 in the sub-plots. The results obtained in this study showed that the rice hybrid NDHR-3 performed significantly better than the scented variety Pusa Basmati-1 for almost all the agronomic traits tested (growth, yield attributes, grain and straw yields, nitrogen uptake and apparent N recovery) The advantage of grain yield in hybrid NDHR-3 was nearly 16 q/ha over Pusa Basmati-1. Increasing levels of nitrogen significantly increased the number of effective tillers hill -1 , panicle length, panicle weight, grain and straw yields and nitrogen uptake, thereby revealing a significant decline in agronomic nitrogen use efficiency (NUE). Among the sources of N, Pusa Neem Golden Urea proved to be significantly superior to other sources with regards to panicle length, grain yield, N uptake, agronomic nitrogen use efficiency and apparent N recovery (%), indicating that coating urea with neem formulations not only increased the grain yield, NUE and apparent N recovery, but also helped to reduce the environmental hazards associated with the use of large amounts of urea.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 10
Claim · model-written summary
NDHR-3 outperformed Pusa Basmati-1 for growth and yield attributes.
- Taxon
- rice
Oryza sativae0 - Material
- NDHR-3e0
- Outcome
- growth, yield attributese0
- Direction
- bettere0
- Comparator
- Pusa Basmati-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rice hybrid NDHR-3 performed significantly better than the scented variety Pusa Basmati-1 for almost all the agronomic traits tested (growth, yield attributes, grain and straw yields, nitrogen uptake and apparent N recovery)”
Claim · model-written summary
NDHR-3 had higher grain yield than Pusa Basmati-1 by nearly 16 q/ha.
- Taxon
- riceOryza sativat0
- Material
- NDHR-3e0
- Outcome
- grain yielde0
- Direction
- advantagee0
- Value
- 16 q/hae0
- Comparator
- Pusa Basmati-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The advantage of grain yield in hybrid NDHR-3 was nearly 16 q/ha over Pusa Basmati-1.”
t0“hybrid rice”
Claim · model-written summary
NDHR-3 had higher straw yield than Pusa Basmati-1.
- Taxon
- riceOryza sativae0
- Material
- NDHR-3e0
- Outcome
- straw yieldse0
- Direction
- bettere0
- Comparator
- Pusa Basmati-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rice hybrid NDHR-3 performed significantly better than the scented variety Pusa Basmati-1 for almost all the agronomic traits tested (growth, yield attributes, grain and straw yields, nitrogen uptake and apparent N recovery)”
Claim · model-written summary
NDHR-3 had higher nitrogen uptake and apparent recovery than Pusa Basmati-1.
- Taxon
- riceOryza sativae0
- Material
- NDHR-3e0
- Outcome
- nitrogen uptake and apparent N recoverye0
- Direction
- bettere0
- Comparator
- Pusa Basmati-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rice hybrid NDHR-3 performed significantly better than the scented variety Pusa Basmati-1 for almost all the agronomic traits tested (growth, yield attributes, grain and straw yields, nitrogen uptake and apparent N recovery)”
Claim · model-written summary
Increasing nitrogen significantly increased effective tillers, panicle length and weight.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene0
- Outcome
- number of effective tillers hill -1 , panicle length, panicle weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of nitrogen significantly increased the number of effective tillers hill -1 , panicle length, panicle weight, grain and straw yields and nitrogen uptake”
t0“hybrid rice”
Claim · model-written summary
Increasing nitrogen significantly increased grain and straw yields.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene0
- Outcome
- grain and straw yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of nitrogen significantly increased the number of effective tillers hill -1 , panicle length, panicle weight, grain and straw yields and nitrogen uptake”
t0“hybrid rice”
Claim · model-written summary
Increasing nitrogen significantly increased nitrogen uptake.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene0
- Outcome
- nitrogen uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of nitrogen significantly increased the number of effective tillers hill -1 , panicle length, panicle weight, grain and straw yields and nitrogen uptake”
t0“hybrid rice”
Claim · model-written summary
Increasing nitrogen significantly reduced agronomic nitrogen use efficiency.
- Taxon
- riceOryza sativat0
- Outcome
- agronomic nitrogen use efficiency (NUE)e0
- Direction
- declinee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereby revealing a significant decline in agronomic nitrogen use efficiency (NUE).”
t0“hybrid rice”
Claim · model-written summary
Pusa Neem Golden Urea was superior to other nitrogen sources for panicle length and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- Pusa Neem Golden Ureae0
- Outcome
- panicle length, grain yielde0
- Direction
- superiore0
- Comparator
- other sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pusa Neem Golden Urea proved to be significantly superior to other sources with regards to panicle length, grain yield, N uptake, agronomic nitrogen use efficiency and apparent N recovery (%)”
t0“hybrid rice”
Claim · model-written summary
Pusa Neem Golden Urea was superior for nitrogen uptake, nitrogen use efficiency and apparent recovery.
- Taxon
- riceOryza sativat0
- Treatment
- Pusa Neem Golden Ureae0
- Outcome
- N uptake, agronomic nitrogen use efficiency and apparent N recovery (%)e0
- Direction
- superiore0
- Comparator
- other sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pusa Neem Golden Urea proved to be significantly superior to other sources with regards to panicle length, grain yield, N uptake, agronomic nitrogen use efficiency and apparent N recovery (%)”
t0“hybrid rice”
The same questions in other papers
693430 · yield · Oryza sativa (rice)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →botanical · yield · Oryza sativa (rice)Results differ
192 papers in the same direction as this paper · 11 in the opposite direction · 4 reporting no difference from an alternative
- positive
- positive
- positive
204 papers more in this group
See all 208 papers →nitrogen · nutrient: efficiency · Oryza sativa (rice)Positive and negative results
216 papers in the same direction as this paper · 41 in the opposite direction · 4 reporting no difference from an alternative
- positive
- positive
- positive
258 papers more in this group
See all 262 papers →nitrogen · nutrient: content · Oryza sativa (rice)Positive and negative results
408 papers in the same direction as this paper · 52 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- no effect
460 papers more in this group
See all 464 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
- positive
- positive
- positive
2,041 papers more in this group
See all 2,045 papers →botanical · nutrient: efficiency · Oryza sativa (rice)Results agree
15 papers in the same direction as this paper
- positive
- positive
- positive
12 papers more in this group
See all 16 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.