Data/hora: 18/05/2024 18:19:51

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 24/08/1995
Data da última atualização: | 24/08/1995
Autoria: | SINGH, J.; RANDHAWA, N. S.
Título: | Boron fractionation and mineral composition of saline-alkali soils.
Ano de publicação: | 1977
Fonte/Imprenta: | Journal of the Indian Society of Soil Science, v.25, n.4, p.433-435, 1977.
Idioma: | Inglês

Conteúdo:

Differentiation of total boron in saline-alkali soils (Salic Natraqualf and Natric Gamborthid)
of Punjab, revealed that water soluble boron constitued 3.8 to 21% of total soil boron. The
expected soluble salts, like borax and ascharite which could not be detected by X-ray dif-
fraction, may be below detectable limits. Nearly 25 per cent of total boron was present as
leachable boron. It was evident that in addition to absorbed boronaa some other sources were contributing towards leachable boron. Because of high tourmaline content of these
soils, the boron contained in sand and silt fraction constituted 29 to 50% of the total boron.
Very high concentration of boron (390 to 450 ppm) in clay fraction was attributed to domi-
nant illite clay mineral. However, on account of low clay content in the soil, the contribu-
tion of clay towards total boron was only 17 to 26%.

Palavras-Chave: | Composicao mineral; Mineral composition; Punjab; Sal alcalino; Saline- Alkali.
Thesagro: | Boro; Solo.
Thesaurus Nal: | boron; soil.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (29422-1) - ADD - SP - -- - SP1042 -  - 1042 - DIS