Abstract
The adoption of sustainable technologies that optimize biological nitrogen fixation (BNF) by peanut crops is essential to improve plant growth and ensure high grain yield potential. A study was conducted to investigate the efficiency of inoculation with Bradyrhizobium spp. and foliar application of molybdenum (Mo) in improving the productive response of peanut crop (Arachis hypogaea L., cv. IAC Tatu ST) in moderately acidic sandy soil (pH 5.0) of the Cerrado region, Brazil during two growing seasons (2016/2017 and 2017/2018). Treatments consisted of uninoculated seeds (control) and inoculated with Bradyrhizobium spp. and foliar application of Mo at five rates (0, 25, 50, 100, and 150 g Mo ha−1). These treatments were arranged in a randomized block design in split plots with four replicates. Nodulation, shoot dry matter, leaf N concentration, and peanut grain yield were significantly high in plants inoculated with Bradyrhizobium spp. in both growing seasons. The grain yield increased by 13% and 12% with the inoculation of Bradyrhizobium spp. compared with non-inoculated plants in the 2016/2017 and 2017/2018 seasons, respectively. Plants fertilized with Mo showed higher root nodulation, leaf N concentration, and shoot dry matter production than control plants in both growing seasons. However, the crop grain yield was significantly high (24%) only in the 2016/2017 season in plants fertilized with Mo. The optimal rate of foliar Mo application in peanut plants cultivated in sandy soils varies from 80 to 100 g of Mo ha−1. Due to improved root nodulation, N uptake, plant growth, and higher crop grain yield, rhizobium inoculation and foliar application of Mo are sustainable agricultural practices that should be recommended for peanut growers.
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Claims 7
Claim · model-written summary
Bradyrhizobium inoculation significantly increased peanut nodulation, shoot dry matter and leaf nitrogen in both seasons.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- inoculated with Bradyrhizobium spp.e0
- Interactor
- Bradyrhizobium spp.
Bradyrhizobiume0symbiont - Outcome
- Nodulation, shoot dry matter, leaf N concentratione0
- Direction
- highe0
- Qualifier
- both growing seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodulation, shoot dry matter, leaf N concentration, and peanut grain yield were significantly high in plants inoculated with Bradyrhizobium spp. in both growing seasons”
Claim · model-written summary
Bradyrhizobium inoculation increased peanut grain yield by 13% in 2016/2017.
- Taxon
- plantsViridiplantaee0
- Treatment
- inoculation of Bradyrhizobium spp.e0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume0symbiont
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 13%e0
- Qualifier
- 2016/2017e0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield increased by 13% and 12% with the inoculation of Bradyrhizobium spp. compared with non-inoculated plants in the 2016/2017 and 2017/2018 seasons, respectively”
Claim · model-written summary
Bradyrhizobium inoculation increased peanut grain yield by 12% in 2017/2018.
- Taxon
- plantsViridiplantaee0
- Treatment
- inoculation of Bradyrhizobium spp.e0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume0symbiont
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 12%e0
- Qualifier
- 2017/2018e0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield increased by 13% and 12% with the inoculation of Bradyrhizobium spp. compared with non-inoculated plants in the 2016/2017 and 2017/2018 seasons, respectively”
Claim · model-written summary
Molybdenum fertilization increased root nodulation, leaf nitrogen and shoot dry matter in both seasons.
Verbatim
e0“Plants fertilized with Mo showed higher root nodulation, leaf N concentration, and shoot dry matter production than control plants in both growing seasons”
Claim · model-written summary
Molybdenum fertilization significantly increased grain yield by 24% only in 2016/2017.
- Taxon
- plantsViridiplantaee0
- Treatment
- fertilized with Moe0
- Outcome
- crop grain yielde0
- Direction
- highe0
- Value
- 24%e0
- Qualifier
- 2016/2017 seasone0
Not reportedComparator
Verbatim
e0“the crop grain yield was significantly high (24%) only in the 2016/2017 season in plants fertilized with Mo”
Claim · model-written summary
The optimal foliar molybdenum rate for peanut in sandy soil is 80 to 100 g per hectare.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- optimal rate of foliar Mo applicatione0
- Value
- 80 to 100 g of Mo ha−1e0
- Setting
- sandy soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal rate of foliar Mo application in peanut plants cultivated in sandy soils varies from 80 to 100 g of Mo ha−1”
Claim · model-written summary
The authors recommend rhizobium inoculation and foliar molybdenum for peanut growers.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- rhizobium inoculation and foliar application of Moe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rhizobium inoculation and foliar application of Mo are sustainable agricultural practices that should be recommended for peanut growers”
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