Phosphorus and silicon effects on growth, yield, and phosphorus forms in potato plants

Autor(es)

Soratto, Rogerio P. ^[1] ; Fernandes, Adalton M. ^[2] ; Pilon, Cristiane ^[3] ; Souza, Mayra R. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Coll Agr Sci, Dept Crop Sci, Botucatu, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Ctr Trop Roots & Starches, Botucatu, SP - Brazil

^[3] Univ Georgia, Dept Crop & Soil Sci, Tifton, GA - USA

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PLANT NUTRITION; v. 42, n. 3, p. 218-233, FEB 7 2019.
• Citações Web of Science: 0

Resumo

Silicon (Si) can increase phosphorus (P) use efficiency (PUE) by increasing P availability in the soil and altering P metabolism in the plant, thus resulting in improved yield under low soil P conditions. The objective was to evaluate the effect of P (10, 50, 100, and 200 mg dm(-3)) and Si (0, 50, and 200 mg dm(-3)) interrelationship on P and Si uptake by plants, forms of P in leaves and tubers, plant growth, and tuber yield of potato plants. Silicon supply increased organic and inorganic P in the leaves. At low soil P rates, Si also increased organic P in the tubers. However, alterations in the P metabolism of potato plants with Si supply did not promote significant changes in dry matter (DM) production and tuber yield. Phosphate fertilization increased growth and yield of plants. Silicon uptake by the plants were also increased by phosphate fertilization with soil Si supply. (AU)

• Processo FAPESP: 13/21567-9 - Nutrição e produtividade da batata (Solanum tuberosum L.) adubada com fósforo e silício
• Beneficiário: Mayra Roberta de Souza
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 13/04683-5 - Adubação da cultura da batata (Solanum tuberosum L.) com fósforo e silício
• Beneficiário: Adalton Mazetti Fernandes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado