Abstract
Field experiments were conducted in a Vertisol for two years to study the response of lowland rice to N from organic and mineral fertilizer tested at N equivalence. The treatments consisted of different organic materials as N fertilizer, viz composted coir pith green manure, sugarcane trash compost, vermicompost, poultry manure and farmyard manure (FYM) applied at 100% N and combination of 50% N from above organic materials and 50% N from urea besides 100% N through urea and control. The recommended dose of fertilizer (RDF) was 120:60:60 N, P2O5 and K2O kg ha−1. The results revealed that addition of organics or urea or both enhanced the growth, rice yield and nutrient status over control. The highest grain yield (4.95, 5.33 t ha−1) and straw yield (7.31, 7.73 t ha− 1) for the two years were noticed with vermicompost plus urea (50% N each) which was on par with poultry manure plus urea (50% N each). Combined use of organic fertilizer along with mineral N recorded higher concentrations of NH4-N and NO3-N in soil and increased total N uptake. Nutrient use efficiency was compared to individual application. It was more in vermicompost- amended soil followed by green manure and poultry manure.
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Claims 6
Claim · model-written summary
Organic fertilizer, urea and their combination enhanced rice growth, yield and nutrient status over control.
- Taxon
- rice
Oryza sativae0 - Treatment
- organics or urea or bothe0
- Outcome
- growth, rice yield and nutrient statuse0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“addition of organics or urea or both enhanced the growth, rice yield and nutrient status over control.”
Claim · model-written summary
Vermicompost plus urea produced the highest rice grain yield, 4.95 and 5.33 t ha−1 in the two years.
- Taxon
- riceOryza sativat0
- Treatment
- vermicompost plus urea (50% N each)e0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 4.95, 5.33 t ha−1e0
- Comparator
- poultry manure plus urea (50% N each)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield (4.95, 5.33 t ha−1) and straw yield (7.31, 7.73 t ha− 1) for the two years were noticed with vermicompost plus urea (50% N each) which was on par with poultry manure plus urea (50% N each).”
t0“rice”
Claim · model-written summary
Vermicompost plus urea produced the highest straw yield, 7.31 and 7.73 t ha− 1 in the two years.
- Taxon
- riceOryza sativat0
- Treatment
- vermicompost plus urea (50% N each)e0
- Outcome
- straw yielde0
- Direction
- higheste0
- Value
- 7.31, 7.73 t ha− 1e0
- Comparator
- poultry manure plus urea (50% N each)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield (4.95, 5.33 t ha−1) and straw yield (7.31, 7.73 t ha− 1) for the two years were noticed with vermicompost plus urea (50% N each) which was on par with poultry manure plus urea (50% N each).”
t0“rice”
Claim · model-written summary
Combined organic and mineral nitrogen increased soil NH4-N and NO3-N concentrations.
- Taxon
- riceOryza sativat0
- Treatment
- Combined use of organic fertilizer along with mineral Ne0
- Outcome
- concentrations of NH4-N and NO3-N in soile0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined use of organic fertilizer along with mineral N recorded higher concentrations of NH4-N and NO3-N in soil and increased total N uptake.”
t0“rice”
Claim · model-written summary
Combined organic and mineral nitrogen increased total rice nitrogen uptake.
- Taxon
- riceOryza sativat0
- Treatment
- Combined use of organic fertilizer along with mineral Ne0
- Outcome
- total N uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined use of organic fertilizer along with mineral N recorded higher concentrations of NH4-N and NO3-N in soil and increased total N uptake.”
t0“rice”
Claim · model-written summary
Nutrient use efficiency was greatest in vermicompost-amended soil, followed by green manure and poultry manure.
- Taxon
- riceOryza sativat0
- Treatment
- vermicompost- amended soile0
- Outcome
- Nutrient use efficiencyt1
- Direction
- moree0
- Comparator
- green manure and poultry manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was more in vermicompost- amended soil followed by green manure and poultry manure.”
t0“rice”
t1“Nutrient use efficiency was compared to individual application.”
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