Abstract
Nano urea technology is gaining importance mainly due to improvement in crop yields besides reducing environmental issues. It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice. A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023. The treatments consisted of three levels of nitrogen (100, 75 and 50 %), nano urea (0.4 %) foliar application in twice (Active Tillering (AI) and Panicle Initiation (PI) stages) and thrice (AT, PI and Flowering stages) combined with 75 and 50 % N and control. Rice variety TRY 5 was used. The results showed that 100 % N application as conventional urea registered significantly increased growth, grain productivity (5200 kg/ha) of rice over lower levels of N and control. However, it was statistically comparable with 75 % N + nano urea (0.4 %) foliar application either two times (AT and PI stages) or three times (AT, PI and Flowering stages). Reducing 25 % N and substituting with nano urea spray twice or thrice showed comparable results with 100 % N. Nano urea spray either two or three times were comparable with each other, indicated that two sprays were sufficient. Economics of nitrogen application found that higher BCR (2.62) was obtained with application of conventional urea at 100 % N over other treatments. 75 % N application in soil + nano urea foliar application twice (AT and PI stages) and thrice (AT, PI and flowering period) gave similar BCR of 2.41.
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Claims 6
Claim · model-written summary
The 100 % nitrogen conventional urea treatment significantly increased rice growth over lower nitrogen levels and control.
- Taxon
- rice
Oryza sativae0 - Material
- TRY 5e2
- Treatment
- 100 % N application as conventional ureae3
- Outcome
- growthe3
- Direction
- increasede3
- Comparator
- lower levels of N and controle3
- Setting
- ADAC & RI, TNAU, Tiruchirappallie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e1“A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023”
e2“Rice variety TRY 5 was used”
e3“The results showed that 100 % N application as conventional urea registered significantly increased growth, grain productivity (5200 kg/ha) of rice over lower levels of N and control”
Claim · model-written summary
The 100 % nitrogen conventional urea treatment significantly increased rice grain productivity to 5200 kg/ha over lower nitrogen levels and control.
- Taxon
- riceOryza sativae0
- Material
- TRY 5e2
- Treatment
- 100 % N application as conventional ureae3
- Outcome
- grain productivitye3
- Direction
- increasede3
- Value
- 5200 kg/hae3
- Comparator
- lower levels of N and controle3
- Setting
- ADAC & RI, TNAU, Tiruchirappallie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e1“A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023”
e2“Rice variety TRY 5 was used”
e3“The results showed that 100 % N application as conventional urea registered significantly increased growth, grain productivity (5200 kg/ha) of rice over lower levels of N and control”
Claim · model-written summary
Rice grain productivity under 75 % nitrogen with two or three nano urea foliar sprays was statistically comparable to the 100 % nitrogen conventional urea treatment.
- Taxon
- riceOryza sativae0
- Material
- TRY 5e2
- Treatment
- 75 % N + nano urea (0.4 %) foliar applicatione4
- Outcome
- grain productivitye3
- Direction
- statistically comparablee4
- Comparator
- 100 % N application as conventional ureae3
- Setting
- ADAC & RI, TNAU, Tiruchirappallie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e1“A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023”
e2“Rice variety TRY 5 was used”
e3“The results showed that 100 % N application as conventional urea registered significantly increased growth, grain productivity (5200 kg/ha) of rice over lower levels of N and control”
e4“However, it was statistically comparable with 75 % N + nano urea (0.4 %) foliar application either two times (AT and PI stages) or three times (AT, PI and Flowering stages)”
Claim · model-written summary
Two nano urea sprays were sufficient, as two or three sprays gave comparable results.
- Taxon
- riceOryza sativae0
- Treatment
- Nano urea spraye5
- Outcome
- two sprays were sufficiente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e5“Nano urea spray either two or three times were comparable with each other, indicated that two sprays were sufficient”
Claim · model-written summary
The 100 % nitrogen conventional urea treatment gave a higher benefit-cost ratio (2.62) than the other treatments.
- Taxon
- riceOryza sativae0
- Material
- TRY 5e2
- Treatment
- conventional urea at 100 % Ne6
- Outcome
- BCRe6
- Direction
- highere6
- Value
- 2.62e6
- Comparator
- other treatmentse6
- Setting
- ADAC & RI, TNAU, Tiruchirappallie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e1“A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023”
e2“Rice variety TRY 5 was used”
e6“higher BCR (2.62) was obtained with application of conventional urea at 100 % N over other treatments”
Claim · model-written summary
The 75 % nitrogen soil application with nano urea foliar sprays applied twice or thrice gave a similar benefit-cost ratio of 2.41.
- Taxon
- riceOryza sativae0
- Material
- TRY 5e2
- Treatment
- 75 % N application in soil + nano urea foliar application twicee7
- Outcome
- BCRe7
- Direction
- similare7
- Value
- 2.41e7
- Setting
- ADAC & RI, TNAU, Tiruchirappallie1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is essential to study the effect of foliar application of nano urea on reduction of conventional urea, growth, grain productivity and net profit of rice”
e1“A field experiment was carried out at ADAC & RI, TNAU, Tiruchirappalli during Rabi, 2023”
e2“Rice variety TRY 5 was used”
e7“75 % N application in soil + nano urea foliar application twice (AT and PI stages) and thrice (AT, PI and flowering period) gave similar BCR of 2.41”
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