Abstract
Field experiments were conducted at Annamalai University, Experimental Farm, Annamalainagar, during Navarai season 2016 (January to April) and Kuruvai season (June to September) to study grain yield, nutrient uptake and nitrogen use efficiency as influenced by different sources of vermicompost and fertilizer nitrogen application in rice cultivation. The experiment comprised of ten treatments which includes control, recommend dose of nitrogen (RDN) alone and in combination with graded dose of nitrogen along with various organic manures namely sewage sludge compost, pressmud, FYM and water hyacinth compost and different sources of vermicompost. These were laid out in randomized block design and replicated thrice. Rice cultivar ADT 43 was used as test variety. The results revealed that crop raised with 50 % N through urea + 50% N through pressmud vermicompost registered higher DMP and grain yield. The same treatment also noticed significant influence on the nutrient uptake. Plots received with 50 % N through urea + 50% N through pressmud registered higher values of Nitrogen use efficiency, Agronomic efficiency (AE), Apparent nitrogen recovery (ANR), physiological efficiency and Internal efficiency. From the above experimental results, it could be concluded that with application 50% N through urea along with 50 % N through pressmud vermicompost resulted in higher rice grain yield and also superior in respect of nutrient uptake and conserve the nitrogen under rice cultivation.
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Claims 5
Claim · model-written summary
The urea plus pressmud vermicompost treatment produced higher dry matter production.
- Taxon
- rice
Oryza sativat0 - Treatment
- 50 % N through urea + 50% N through pressmud vermicomposte0
- Outcome
- DMPe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop raised with 50 % N through urea + 50% N through pressmud vermicompost registered higher DMP and grain yield”
t0“rice”
Claim · model-written summary
The same fertilizer treatment produced higher grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- 50 % N through urea + 50% N through pressmud vermicomposte0
- Outcome
- grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop raised with 50 % N through urea + 50% N through pressmud vermicompost registered higher DMP and grain yield”
t0“rice”
Claim · model-written summary
The same fertilizer treatment significantly influenced nutrient uptake.
- Taxon
- riceOryza sativat0
- Treatment
- 50 % N through urea + 50% N through pressmud vermicomposte1
- Outcome
- nutrient uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same treatment also noticed significant influence on the nutrient uptake.”
t0“rice”
e1“50 % N through urea + 50% N through pressmud vermicompost”
Claim · model-written summary
Urea plus pressmud produced higher nitrogen use efficiency, agronomic efficiency, and apparent nitrogen recovery.
- Taxon
- riceOryza sativat0
- Treatment
- 50 % N through urea + 50% N through pressmude0
- Outcome
- Nitrogen use efficiency, Agronomic efficiency (AE), Apparent nitrogen recovery (ANR)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plots received with 50 % N through urea + 50% N through pressmud registered higher values of Nitrogen use efficiency, Agronomic efficiency (AE), Apparent nitrogen recovery (ANR), physiological efficiency and Internal efficiency.”
t0“rice”
Claim · model-written summary
Urea plus pressmud produced higher physiological and internal efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- 50 % N through urea + 50% N through pressmude0
- Outcome
- physiological efficiency and Internal efficiencye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plots received with 50 % N through urea + 50% N through pressmud registered higher values of Nitrogen use efficiency, Agronomic efficiency (AE), Apparent nitrogen recovery (ANR), physiological efficiency and Internal efficiency.”
t0“rice”
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