|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 181 van 183 gevonden artikelen
| Titel: |
Use of phosphorus vectors to monitor changes in soil phosphorus |
| Auteur: |
Killorn, Randy Lewis, G. C. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 15 (1984) nr. 6 pagina's 717-729 |
| Jaar: |
1984-06 |
| Inhoud: |
A study was conducted to evaluate the use of P vectors to predict the amount of P required on a yearly basis to maintain a constant solution-solid phase P relationship in an irrigated calcareous and a dryland acid soil. Irrigated potato-spring barley and dryland spring pea spring-barley crop rotations established at the two locations. Mono-calcium phosphate (0-45-0) was applied annually at five levels, ranging from 0-4 times estimated crop removal. Phosphorus vectors were determined on soil samples by equilibration with standard P solutions. Yields tended to increase with added P on the calcareous soil; however, significant responses were not recorded at either location. Consequently, critical P vectors were not established. A constant solution-solid phase P relationship was maintained by addition of P equal to that removed by the crop on the calcareous soil. A constant solution-solid phase P relationship was not maintained on the acid soil. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 181 van 183 gevonden artikelen
| << vorige | volgende >> |