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Silicon fertilization improve yield and quality of rice and pearl millet in cerrado soils
- Source :
- Bioscience Journal ; Vol. 32 No. 4 (2016): July/Aug.; 899-907, Bioscience Journal ; v. 32 n. 4 (2016): July/Aug.; 899-907, Bioscience journal, Universidade Federal de Uberlândia (UFU), instacron:UFU, Bioscience Journal, Vol 32, Iss 4 (2016)
- Publication Year :
- 2016
- Publisher :
- EDUFU - Editora da Universidade Federal de Uberlandia, 2016.
-
Abstract
- Although silicon (Si) fertilization in rice ( Oryza sativa ) plants have already been studied, most of the Brazilian studies have focused on the acidity correction effects of sources and the application rate, but not on Si supply. Moreover, beneficial effects are rarely linked to other Si-accumulation plants such as pearl millet ( Pennisetum glaucum ), which is extensively grown in low soluble Si of Cerrado soils. The objective of this study was to evaluate the Si sources and application rates on the yield and quality of two commonly cultivated grain crops (rice and pearl millet) in Cerrado soils. The experiments were conducted on two crops (rice and pearl millet) and two soil types (Rhodic Haplustox-LV and Quartzipsamment-RQ) in a completely randomized factorial scheme with four replicates, four Si rates (0; 200; 400, and 800 kg ha -1 Si); and three sources (calcium and magnesium silicate, wollastonite, and silicic acid). All plots receiv ed the same quantities of Ca and Mg to equilibrate these levels in both soils. Ca and Mg silicate and wollastonite produced linear increases in soluble Si (0.5 mol L -1 acetic acid), in LV, RQ, and in Si uptake by rice and pearl millet. Increases in shoot dry weight were observed in rice and pearl millet from maximum rates of 542, 550 and 480 kg ha -1 Si in RQ, respectively. Ca and Mg silicate levels were higher than wollastonite in the dry weight of both plants.
- Subjects :
- 0106 biological sciences
QH301-705.5
engineering.material
01 natural sciences
Wollastonite
soil
chemistry.chemical_compound
Dry weight
Silicic acid
Biology (General)
Oryza sativa
silicate
biology
Agricultural Sciences
Chemistry
rice
Crop yield
food and beverages
Agriculture
Soil classification
04 agricultural and veterinary sciences
biology.organism_classification
Agronomy
Soil water
040103 agronomy & agriculture
engineering
0401 agriculture, forestry, and fisheries
General Agricultural and Biological Sciences
pearl millet
Pennisetum
010606 plant biology & botany
Subjects
Details
- ISSN :
- 19813163
- Database :
- OpenAIRE
- Journal :
- Bioscience Journal
- Accession number :
- edsair.doi.dedup.....eebfc8356ba26d196ea30b5fd6bb164a