Abstract
Field experiment was carried out at the Experimental farm, Annamalai University, Annamalai Nagar to study the productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu (2018). The experiment conducted in split-plot design and treatments were replicated thrice, the three traditional rice varieties were assigned as main plot treatments viz., Mapillai samba, Illupai poo samba and Seeraga samba, and integrated nutrient management were assigned as sub plot treatments, it includes control, graded dose of nitrogen alone ant it combination with FYM, EM (effective microorganisms) compost, pressmud, green manure. From the results of field study, among the rice varieties, Mapillai samba significantly recorded higher grain yield of 2574 kg ha-1, straw yield of 3831 kg ha-1 and harvest index of 39.85 and nitrogen use efficiency of 36.58 (NUE) agronomic efficiency of 21.68 (AE) and apparent N recovery (%) of 56.93 (ANR). The aforesaid parameters were least under Illupai poo samba rice variety. In respect of INM treatments, plots received with 75% RDN along with EM compost @ 5 t ha-1 significantly recorded maximum grain yield of 2967 kg ha-1, straw yield of 4341 kg ha-1 and harvest index of 40.56. Also the same treatment recorded higher values of nitrogen use efficiency of 39.56 (NUE), agronomic efficiency of 25.58 (AE) and apparent N recovery (%) of 66.44 (ANR). The lowest grain yield, straw yield and harvest index of rice were registered under control. But lowest values of nitrogen use efficiency (NUE), agronomic efficiency (AE) and apparent N recovery (%) (ANR) were recorded under 100% recommended dose of nitrogen (RDN). In respect of economics, among the treatment combination seeraga samba rice variety received with 75% RDN + EM compost @ 5 t ha-1 registered higher gross return, net return and return per rupee invested.
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Claims 16
Claim · model-written summary
Mapillai samba had the highest grain yield of 2574 kg ha-1.
- Taxon
- rice
Oryza sativat0 - Material
- Mapillai sambae0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 2574 kg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mapillai samba significantly recorded higher grain yield of 2574 kg ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
Mapillai samba had straw yield of 3831 kg ha-1.
- Taxon
- riceOryza sativat0
- Material
- Mapillai sambae0
- Outcome
- straw yielde0
- Direction
- highere0
- Value
- 3831 kg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mapillai samba significantly recorded higher grain yield of 2574 kg ha-1, straw yield of 3831 kg ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
Mapillai samba had harvest index of 39.85.
- Taxon
- riceOryza sativat0
- Material
- Mapillai sambae1
- Outcome
- harvest indexe0
- Value
- 39.85e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvest index of 39.85”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
e1“Mapillai samba significantly recorded higher grain yield”
Claim · model-written summary
Mapillai samba had nitrogen use efficiency of 36.58.
- Taxon
- riceOryza sativat0
- Material
- Mapillai sambae1
- Outcome
- nitrogen use efficiencye0
- Value
- 36.58e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen use efficiency of 36.58 (NUE)”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
e1“Mapillai samba significantly recorded higher grain yield”
Claim · model-written summary
Mapillai samba had agronomic efficiency of 21.68.
- Taxon
- riceOryza sativat0
- Material
- Mapillai sambae1
- Outcome
- agronomic efficiencye0
- Value
- 21.68e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agronomic efficiency of 21.68 (AE)”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
e1“Mapillai samba significantly recorded higher grain yield”
Claim · model-written summary
Mapillai samba had apparent N recovery of 56.93.
- Taxon
- riceOryza sativat0
- Material
- Mapillai sambae1
- Outcome
- apparent N recoverye0
- Value
- 56.93e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apparent N recovery (%) of 56.93 (ANR)”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
e1“Mapillai samba significantly recorded higher grain yield”
Claim · model-written summary
Illupai poo samba ranked lowest for the preceding productivity and efficiency parameters.
- Taxon
- riceOryza sativae0
- Material
- Illupai poo sambae0
- Outcome
- aforesaid parameterse0
- Direction
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aforesaid parameters were least under Illupai poo samba rice variety.”
Claim · model-written summary
75% RDN with EM compost gave grain yield of 2967 kg ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e0
- Outcome
- grain yielde0
- Direction
- maximume0
- Value
- 2967 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDN along with EM compost @ 5 t ha-1 significantly recorded maximum grain yield of 2967 kg ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
75% RDN with EM compost gave straw yield of 4341 kg ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e0
- Outcome
- straw yielde0
- Direction
- maximume0
- Value
- 4341 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDN along with EM compost @ 5 t ha-1 significantly recorded maximum grain yield of 2967 kg ha-1, straw yield of 4341 kg ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
75% RDN with EM compost gave harvest index of 40.56.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e1
- Outcome
- harvest indexe0
- Value
- 40.56e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvest index of 40.56”
e1“75% RDN along with EM compost @ 5 t ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
75% RDN with EM compost gave nitrogen use efficiency of 39.56.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e1
- Outcome
- nitrogen use efficiencye0
- Direction
- highere0
- Value
- 39.56e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher values of nitrogen use efficiency of 39.56 (NUE)”
e1“75% RDN along with EM compost @ 5 t ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
75% RDN with EM compost gave agronomic efficiency of 25.58.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e1
- Outcome
- agronomic efficiencye0
- Direction
- highere0
- Value
- 25.58e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher values of nitrogen use efficiency of 39.56 (NUE), agronomic efficiency of 25.58 (AE)”
e1“75% RDN along with EM compost @ 5 t ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
75% RDN with EM compost gave apparent N recovery of 66.44.
- Taxon
- riceOryza sativat0
- Treatment
- 75% RDN along with EM compost @ 5 t ha-1e1
- Outcome
- apparent N recoverye0
- Direction
- highere0
- Value
- 66.44e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher values of nitrogen use efficiency of 39.56 (NUE), agronomic efficiency of 25.58 (AE) and apparent N recovery (%) of 66.44 (ANR)”
e1“75% RDN along with EM compost @ 5 t ha-1”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
Control plots had the lowest grain yield, straw yield and harvest index.
- Taxon
- riceOryza sativae0
- Treatment
- controle0
- Outcome
- grain yield, straw yield and harvest indexe0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest grain yield, straw yield and harvest index of rice were registered under control.”
Claim · model-written summary
100% RDN had the lowest NUE, AE and ANR.
- Taxon
- riceOryza sativat0
- Treatment
- 100% recommended dose of nitrogen (RDN)e0
- Outcome
- nitrogen use efficiency (NUE), agronomic efficiency (AE) and apparent N recovery (%) (ANR)e0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lowest values of nitrogen use efficiency (NUE), agronomic efficiency (AE) and apparent N recovery (%) (ANR) were recorded under 100% recommended dose of nitrogen (RDN).”
t0“Productivity, economic efficiency and agronomic efficiency of traditional rice varieties as influenced by EM compost and fertilizer nitrogen under Cauvery delta zone of Tamil Nadu, India”
Claim · model-written summary
Seeraga samba with 75% RDN and EM compost had the highest gross return, net return and return per rupee invested.
- Taxon
- riceOryza sativae0
- Material
- seeraga sambae0
- Treatment
- 75% RDN + EM compost @ 5 t ha-1e0
- Outcome
- gross return, net return and return per rupee investede0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seeraga samba rice variety received with 75% RDN + EM compost @ 5 t ha-1 registered higher gross return, net return and return per rupee invested.”
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