Abstract
In the eastern part of India, rice as the most vital staple food crop supports as well the livelihood security of a vast population. Rice is mostly grown under conventional flooded culture without proper nutrient management. Crop performance, water productivity and economic profitability of rice cultivation need to be assessed under water-saving rice production methodologies with proper integrated plant nutrient management strategies using locally available low-cost nutrient sources. A field trial was conducted at the Adaptive Research Farm, Polba (58.57 m msl), Agriculture Department, West Bengal, India, during the rainy/wet seasons of 2014 and 2015 under aerobic culture, the system of rice intensification (SRI) and conventional flooded culture. The experiment was conducted to evaluate the influence of integrated plant nutrition and water-saving rice production methodologies on the crop performance and water productivity of rice and analyse the economic profitability of rice under different nutritional management and crop production methods such as aerobic culture, conventional flooded and SRI with an objective of sustainability in rice cultivation in the agroclimatic region. The results revealed that crop productivity significantly (p ≤ 0.05) varied from 4.68 t ha−1 (average yield recorded under aerobic culture) to 6.21 t ha−1 (average yield as achieved under SRI). Cultivation of rice under aerobic and conventional culture resulted in 24.6% and 20.9% yield reduction respectively as compared to SRI. Integrating 75% of the recommended dose of nitrogen (RDN) through chemicals with 25% RDN from vermicompost resulted in maximum crop productivity irrespective of crop culture. Aerobic rice culture registered maximum water economy in terms of both irrigation water productivity and total productivity. The study concludes that, for maximization of economic profitability, value cost ratio and partial factor productivity of nutrients the SRI method can be adopted along with integrated nutrient management (75% of RDN through chemicals with 25% RDN from vermicompost) in the lower Indo-Gangetic Plain Zone (IGPZ) of West Bengal, India.
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Claims 7
Claim · model-written summary
Aerobic culture yielded lower rice productivity than SRI, at 4.68 t ha−1 on average.
- Taxon
- Rice (Oryza sativa L.)
Oryza sativat0 - Treatment
- aerobic culturee1
- Outcome
- average yielde1
- Direction
- lowerinferrede1
- Value
- 4.68 t ha−1e1
- Comparator
- SRIe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e1“crop productivity significantly (p ≤ 0.05) varied from 4.68 t ha−1 (average yield recorded under aerobic culture) to 6.21 t ha−1 (average yield as achieved under SRI)”
Claim · model-written summary
SRI gave higher rice productivity than aerobic culture, at 6.21 t ha−1 on average.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- SRIe1
- Outcome
- average yielde1
- Direction
- higherinferrede1
- Value
- 6.21 t ha−1e1
- Comparator
- aerobic culturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e1“crop productivity significantly (p ≤ 0.05) varied from 4.68 t ha−1 (average yield recorded under aerobic culture) to 6.21 t ha−1 (average yield as achieved under SRI)”
Claim · model-written summary
Aerobic culture reduced rice yield by 24.6% compared with SRI.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- aerobice2
- Outcome
- yielde2
- Direction
- reductione2
- Value
- 24.6%e2
- Comparator
- SRIe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e2“Cultivation of rice under aerobic and conventional culture resulted in 24.6% and 20.9% yield reduction respectively as compared to SRI”
Claim · model-written summary
Conventional culture reduced rice yield by 20.9% compared with SRI.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- conventional culturee2
- Outcome
- yielde2
- Direction
- reductione2
- Value
- 20.9%e2
- Comparator
- SRIe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e2“Cultivation of rice under aerobic and conventional culture resulted in 24.6% and 20.9% yield reduction respectively as compared to SRI”
Claim · model-written summary
Integrating 75% of the recommended nitrogen dose through chemicals with 25% from vermicompost gave maximum crop productivity irrespective of culture.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Integrating 75% of the recommended dose of nitrogen (RDN) through chemicals with 25% RDN from vermicomposte3
- Outcome
- crop productivitye3
- Direction
- maximume3
- Qualifier
- irrespective of crop culturee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e3“Integrating 75% of the recommended dose of nitrogen (RDN) through chemicals with 25% RDN from vermicompost resulted in maximum crop productivity irrespective of crop culture”
Claim · model-written summary
Aerobic rice culture gave maximum irrigation water productivity and total productivity.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Aerobic rice culturee4
- Outcome
- irrigation water productivity and total productivitye4
- Direction
- maximume4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e4“Aerobic rice culture registered maximum water economy in terms of both irrigation water productivity and total productivity”
Claim · model-written summary
The authors recommend adopting the SRI method with integrated nutrient management in the lower Indo-Gangetic Plain Zone of West Bengal.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Outcome
- the SRI method can be adopted along with integrated nutrient managemente5
- Setting
- lower Indo-Gangetic Plain Zone (IGPZ) of West Bengal, Indiae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice (Oryza sativa L.)”
e5“the SRI method can be adopted along with integrated nutrient management (75% of RDN through chemicals with 25% RDN from vermicompost) in the lower Indo-Gangetic Plain Zone (IGPZ) of West Bengal, India”
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