Artículos de revistas
Root-system of peanuts as affected by phosphorus fertilization
Fecha
1994-11-01Registro en:
Pesquisa Agropecuaria Brasileira. Brasilia: Empresa Brasil Pesq Agropec, v. 29, n. 11, p. 1669-1673, 1994.
0100-204X
WOS:A1994QK09900003
5720775873259528
5669160000483769
0000-0003-2001-0874
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
There have been some responses of peanut roots to phosphorus. An experiment was carried out to study peanut root growth and distribution as related to P in the soil. The cultivars Tatu, Oira and Tup4 and the lines FCA 170 and FCA 265 were grown with or without P fertilization with 80 kg P2O5/ha, as triple superphosphate. The fertilizer was applied in the seed furrows. There was higher P contents in the 0-10 cm layer of the soil 36 days after P application. At 66 and 98 days after application, P contents of the soil were increased by fertilization down to 15 cm. There was no response of peanut roots to P fertilization. Oira showed the highest root lenght density and Tatu the lowert. There was a root concentration the first 15 cm of the soil. Oira with the largest root system showed the lowest P absorption, and Tatu, with the smallest root system absorbed as much P as the others.