Abstract
Incorporation of winter legume crops in rotation with rice and using plant growth-promoting rhizobacteria can be a proper alternative approach in increasing sustainable crop production in rice fields. A split factorial field experiment using randomized complete block design with three replications was conducted at the Rice Research Station of Tonekabon, Mazandaran province, Iran, in 2014 to evaluate the effects of previous crop, Azospirillum lipoferum inoculation, and N rate on growth and seed yield of rice (Oryza sativa L. cv. Shiroudi). Main plots were consisted of previous crop [berseem clover, faba bean, and control (fallow)] and subplots of Azospirillum lipoferum (Inoculated and Un-inoculated) and recommended rate of N applications (50, 75, and 100 kg.ha-1). Analysis of variance showed that rice paddy yield was significantly affected by previous crop, Azospirillum lipoferum and N rate. Result also showed that rice paddy yield was increased only by 3% when rice was planted after berseem clover as it compared with rice plant after fallow. However, rice paddy yield was significantly reduced by 16% when it was planted after faba bean as compared to that it was planted after fallow. Rice paddy yield was significantly increased by 14% after Azospirillum lipoferum inoculation. Rice paddy yield was significantly increased by 11% when N application increased from 50 to 75 kg N ha-1, and further N application (100 kg N ha-1) did not affect paddy yield significantly. Based on the result of this experiment, planting rice after berseem clover, Azospirillum lipoferum inoculation and application of kg N ha-1 of recommended rates can be used to obtain highest paddy yield in the experimental site.
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Claims 6
Claim · model-written summary
Rice paddy yield increased by 3% after berseem clover relative to fallow.
- Taxon
- rice
Oryza sativae0 - Treatment
- planted after berseem clovere0
- Outcome
- rice paddy yielde0
- Direction
- increasede0
- Value
- 3%e0
- Comparator
- rice plant after fallowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice paddy yield was increased only by 3% when rice was planted after berseem clover as it compared with rice plant after fallow”
Claim · model-written summary
Rice paddy yield was significantly reduced by 16% after faba bean relative to fallow.
- Taxon
- riceOryza sativae1
- Treatment
- planted after faba beane0
- Outcome
- rice paddy yielde0
- Direction
- reducede0
- Value
- 16%e0
- Comparator
- planted after fallowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice paddy yield was significantly reduced by 16% when it was planted after faba bean as compared to that it was planted after fallow”
e1“rice (Oryza sativa L. cv. Shiroudi)”
Claim · model-written summary
Azospirillum lipoferum inoculation significantly increased rice paddy yield by 14%.
- Taxon
- riceOryza sativae1
- Treatment
- Azospirillum lipoferum inoculatione0
- Interactor
- Azospirillum lipoferumAzospirillum lipoferume0symbiont
- Outcome
- Rice paddy yielde0
- Direction
- increasede0
- Value
- 14%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice paddy yield was significantly increased by 14% after Azospirillum lipoferum inoculation.”
e1“rice (Oryza sativa L. cv. Shiroudi)”
Claim · model-written summary
Increasing nitrogen application from 50 to 75 kg N ha-1 significantly increased rice paddy yield by 11%.
- Taxon
- riceOryza sativae1
- Treatment
- 75 kg N ha-1e0
- Outcome
- Rice paddy yielde0
- Direction
- increasede0
- Value
- 11%e0
- Comparator
- 50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice paddy yield was significantly increased by 11% when N application increased from 50 to 75 kg N ha-1”
e1“rice (Oryza sativa L. cv. Shiroudi)”
Claim · model-written summary
Further nitrogen application at 100 kg N ha-1 did not significantly affect paddy yield.
- Taxon
- riceOryza sativae1
- Treatment
- 100 kg N ha-1e0
- Outcome
- paddy yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“further N application (100 kg N ha-1) did not affect paddy yield significantly”
e1“rice (Oryza sativa L. cv. Shiroudi)”
Claim · model-written summary
The authors recommend rice after berseem clover with Azospirillum lipoferum inoculation and nitrogen application to obtain highest paddy yield at the site.
- Taxon
- riceOryza sativae0
- Interactor
- Azospirillum lipoferumAzospirillum lipoferume0symbiont
- Outcome
- planting rice after berseem clover, Azospirillum lipoferum inoculation and application of kg N ha-1 of recommended ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting rice after berseem clover, Azospirillum lipoferum inoculation and application of kg N ha-1 of recommended rates can be used to obtain highest paddy yield in the experimental site”
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