Methods of measuring available nutrients in West Indian soils

✍ Scribed by D. Walmsley; I. S. Cornforth

• Book ID: 104614525
• Publisher: Springer
• Year: 1973
• Tongue: English
• Weight: 423 KB
• Volume: 39
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00018048

✦ Synopsis

Nine methods of measuring available soil P have been compared using drym a t t e r yield response and P uptake data from maize grown on 155 W e s t Indian soils in greenhouse experiments. O 1 s e n's (0.5N NaHCO3) method gave the best estimates of available P and was also least sensitive to changes in soil properties (texture, pH, cation exchange capacity, and percent base saturation). A m e r ' s resin method was almost as good except t h a t it was unsuccessful with soils of low base saturation ( < 60 per cent).