Abstract
Several classes of soils in Brazil have been used for sugarcane cultivation, inclusive soils with low soluble silicon contents. The objectives were to evaluate silicon availability in soils and the relationship between availability and uptake. Therefore, we assessed the dry matter yields of sugarcane cultivated in three soil types, with and without silicon fertilization. The experiment was set up in a completely randomized factorial scheme (4 x 3 x 2) with four silicon rates (0, 185, 370 and 555 kg ha-1 Si) as Ca-Mg silicate and three soils: Quartzipsamment (RQ), Rhodic Hapludox (LV) and Rhodic Acrudox (LVdf), in four repetitions. All plots (100 L) received same Ca and Mg quantities with additions of dolomitic lime and or MgCl2. The LVdf soil showed the higher soluble silicon concentration, followed by LV and RQ. Added Si applied increased the amounts of soluble content in all soils but Si uptake in leaves of sugarcane were just increased to RQ and LV. However, addition of Si to the soils did not promote changes in dry matter yields and Si uptake on stalks of sugarcane.
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Claims 6
Claim · model-written summary
LVdf had the highest soluble silicon concentration, followed by LV and RQ.
Verbatim
e0“The LVdf soil showed the higher soluble silicon concentration, followed by LV and RQ”
t0“sugarcane”
Claim · model-written summary
Added silicon increased soluble silicon in all soils.
Not reportedComparator
Verbatim
e0“Added Si applied increased the amounts of soluble content in all soils”
t0“sugarcane”
Claim · model-written summary
Silicon application increased sugarcane leaf silicon uptake in RQ soil.
Not reportedComparator
Verbatim
e0“Si uptake in leaves of sugarcane were just increased to RQ and LV”
Claim · model-written summary
Silicon application increased sugarcane leaf silicon uptake in LV soil.
Not reportedComparator
Verbatim
e0“Si uptake in leaves of sugarcane were just increased to RQ and LV”
Claim · model-written summary
Adding silicon did not change sugarcane dry matter yield.
- Taxon
- sugarcanee0
- Treatment
- addition of Si to the soilse0
- Outcome
- dry matter yieldse0
- Direction
- did not promote changese0
Not reportedComparator
Verbatim
e0“addition of Si to the soils did not promote changes in dry matter yields and Si uptake on stalks of sugarcane”
Claim · model-written summary
Adding silicon did not change silicon uptake in sugarcane stalks.
- Taxon
- sugarcanee0
- Organ / stage
- stalkse0
- Treatment
- addition of Si to the soilse0
- Outcome
- Si uptake on stalkse0
- Direction
- did not promote changese0
Not reportedComparator
Verbatim
e0“addition of Si to the soils did not promote changes in dry matter yields and Si uptake on stalks of sugarcane”
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