Abstract
The purpose of this research was to assess the crop rotation affects on agronomic traits of soybean in optimal (OCS) and dry cropping seasons (DCS). This research was carried out in 2010/2011 (OCS) and 2011/2012 (DCS) in a Rhodic Hapludox soil. The experimental design was set up in a randomized complete block and the treatments were arranged in a factorial 9 x 2, consisting of 9 crop rotations systems and two cropping seasons, with four replications. The soybean (Glycine max cv. BMX-Potncia RR) was sowed on October 20 th 2010 and October 10 th 2011 (spring-summer season) 20 days after the fall-winter cover crops desiccation. It was assessed in the R8 reproductive stage (Full maturation) the plant height, the height of the first pod insertion, number of pod per plants, number of branches per plant, number of seed per pod, 1000-grain weight and grain yield. It was observed that in drought stress (DCS), the number of branches decreased, this reduction was 36% in relation to OCS. For the traits as plant height, first pod height, 1000-grain weight and yield, it was showed small values in DCS in contrast to OCS. It is feasible to introduce these cover crops in fall-winter season to make part of a crop rotation system. The number of pod per plant showed higher values under the crop rotation of corn/rapeseed/soybean, which showed highly associated with the soybean grain yield. This research brought options for cover crops system to be viable in no-till system with soybean in spring-summer season.
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Claims 6
Claim · model-written summary
Drought stress in the dry cropping season reduced the number of soybean branches by 36% relative to the optimal season.
- Taxon
- Glycine max
Glycine maxe1 - Material
- BMX-Potncia RRe1
- Treatment
- drought stress (DCS)e2
- Outcome
- number of branchese2
- Direction
- decreasede2
- Value
- 36%e2
- Comparator
- OCSe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean (Glycine max cv. BMX-Potncia RR)”
e2“It was observed that in drought stress (DCS), the number of branches decreased, this reduction was 36% in relation to OCS”
Claim · model-written summary
In the dry cropping season, plant height, first pod height and 1000-grain weight of soybean had small values relative to the optimal season.
- Taxon
- Glycine maxGlycine maxe1
- Treatment
- DCSe2
- Outcome
- plant height, first pod height, 1000-grain weighte2
- Direction
- small valuese2
- Comparator
- OCSe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean (Glycine max cv. BMX-Potncia RR)”
e2“For the traits as plant height, first pod height, 1000-grain weight and yield, it was showed small values in DCS in contrast to OCS”
Claim · model-written summary
In the dry cropping season, soybean yield had small values relative to the optimal season.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean (Glycine max cv. BMX-Potncia RR)”
e2“For the traits as plant height, first pod height, 1000-grain weight and yield, it was showed small values in DCS in contrast to OCS”
Claim · model-written summary
The corn/rapeseed/soybean rotation gave higher pod numbers per plant, which were highly associated with soybean grain yield.
- Taxon
- soybeanGlycine maxe3
- Treatment
- crop rotation of corn/rapeseed/soybeane3
- Outcome
- number of pod per plante3
- Direction
- higher valuese3
- Qualifier
- highly associated with the soybean grain yielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The number of pod per plant showed higher values under the crop rotation of corn/rapeseed/soybean, which showed highly associated with the soybean grain yield”
Claim · model-written summary
Introducing these cover crops in the fall-winter season is feasible as part of a soybean crop rotation system.
- Taxon
- soybeanGlycine maxe1
- Outcome
- introduce these cover crops in fall-winter seasone4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean (Glycine max cv. BMX-Potncia RR)”
e4“It is feasible to introduce these cover crops in fall-winter season to make part of a crop rotation system”
Claim · model-written summary
The cover crop system can be viable in no-till soybean production in the spring-summer season.
- Taxon
- soybeanGlycine maxe1
- Outcome
- viable in no-till systeme5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean (Glycine max cv. BMX-Potncia RR)”
e5“This research brought options for cover crops system to be viable in no-till system with soybean in spring-summer season”
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