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- Title
Características morfológicas e produtivas do capim-marandu adubado com fosfato natural reativo em solo de cerrado.
- Authors
Bonfim-Silva, Edna Maria; dos Santos, Claudia Cardoso; Nascimento Farias, Lorraine do; Cardoso Vilarinho, Marcella Karoline; Guimarães, Salomão Lima; Da Silva, Tonny José Araújo
- Abstract
Phosphorus is important for plant development, and is indispensable for metabolic processes. The objective of this study was to evaluate the morphological and productive characteristics of Brachiaria brizantha cv. Marandu depending on the doses of P in natural reactive phosphate Bayóvar. The experiment was carried out in a greenhouse at Federal University of Mato Grosso - Campus Rondonópolis. The soil used was a Oxisol which was collected from the layers 0,00-0,20 m. The treatments used were six doses of phosphorus (0; 50; 100; 150; 200 and 250 mg dm-3) and five replications using a randomized experimental design. Two cuts (at 48 days after the sowing and 28 days thereafter) were made and the evaluated variables were: plant height, number of leafs, number of tillers, dry mass of shoot and root. All results were subjected to variance analysis and regression at 5% probability using the statistical program Sisvar. The active phosphate fertilization promoted significant changes in the morphological and productive characteristics of marandu grass at the first cut providing highest yields in the second cut. For marandu grass the doses of phosphorus that provided the greatest heights correspond to the range of 162.9 and 203.4 mg dm-3, and the other variables were adjusted by linear regression
- Subjects
FERTILIZER application; PHOSPHATE fertilizers; PLANT morphology; ANALYSIS of variance; REGRESSION analysis; EXPERIMENTAL agriculture
- Publication
Revista Agro@mbiente On-line, 2012, Vol 6, Issue 2, p166
- ISSN
1982-8470
- Publication type
Article
- DOI
10.18227/1982-8470ragro.v6i2.756