Data/hora: 09/06/2024 13:50:22

Provedor de dados: | 18
País: | United Kingdom
Título: | Phosphorus Fertility Relationships of Central Washington Irrigated Soils (with special emphasis on exposed calcareous subsoils)
Autores: | James, D.W.; Leggett, G.E.; Dow, A.I.
Data: | 1967
Ano: | 1967
Palavras-chave: | Calcareous soil; Fertility; Phosphorous; Mass Import - autoclassified (may be erroneous).
Resumo: | To facilitate irrigation in central Washington, land  is leveled or smoothed on a broad scale. As a result, the  calcareous and extremely infertile subsoils are exposed  and used directly as a medium for plant growth. Phosphorus  fertilizer requirements of exposed subsoils were  determined by measuring crop yield and P uptake on  plots that were fertilized in the current and one, two  or three preceding seasons. Annual crops used as indicators  of P availability at three sites were field beans,  Sudangrass and sugar beets. A supplementary experiment  involved fertilization of a previously established  alfalfa crop. Crop growth and P uptake results were  correlated with sodium bicarbonate soil testing
Tipo: | Technical Bulletin
Idioma: | Inglês

Identificador:

http://eprints.nwisrl.ars.usda.gov/1133/1/105.pdf

James, D.W. and Leggett, G.E. and Dow, A.I.  (1967) Phosphorus Fertility Relationships of Central Washington Irrigated Soils (with special emphasis on exposed calcareous subsoils).    Washington State University Bulletin No. 688.      18 pp.

Relação:

http://eprints.nwisrl.ars.usda.gov/1133/

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Formato: | application/pdf