Study of landscape- agrogeochemical balance of nutrients in agricultural regions (Part I: Phosphorus)

✍ Scribed by A. Yu. Kudeyarova; V. N. Bashkin

• Book ID: 104650488
• Publisher: Springer Netherlands
• Year: 1984
• Tongue: English
• Weight: 415 KB
• Volume: 21
• Category: Article
• ISSN: 0049-6979
• DOI: 10.1007/bf00163614

✦ Synopsis

The P balance in the watersheds of four small rivers of the Oka Valley, U.S.S.R., was investigated. A positive P balance was observed for all four watersheds. Application rates of P fertilizers and accumulation of P in soils were highly correlated (r = 0.997). However, no correlation between the level of application of mineral P fertilizers and P concentration in the groundwater was found. The concentration of P in groundwater was found to be dependent upon the content of organic matter in the soils and the amount of FYM applied. It may be assumed that polyphosphates (the biosynthesis of which is stimulated by the available organic matter and orthophosphates applied) are of great importance for P migration in soils.