Effect of current-season application of calcitic lime and phosphorus fertilization on soil pH, potato growth, yield, dry matter content, and cadmium concentration
| Autor: | M. K. Smart, M. Butt, N. A. Maier, M. Heap, Mike J. McLaughlin |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | ResearcherID |
| ISSN: | 1532-2416 0010-3624 |
| DOI: | 10.1081/css-120005754 |
| Popis: | Two glasshouse and three field experiments were conducted to investigate the effects of current-season application of calcitic lime and phosphorus (P) fertilizer on (i) soil pHw, (ii) growth of haulms (tops), (iii) tuber number, yield and dry matter content, and (iv) cadmium (Cd) concentrations in tubers of the potato (Solanum tuberosum L.) cultivars Russet Burbank, Crystal, and Pontiac grown in acid Entisols. Rates of calcitic lime ranged from 0 to 20 t ha−1, and rates of P, applied as single superphosphate, ranged from 0 to 100 kg ha−1. Liming increased surface (0–15 cm) soil pHw by up to 3.1 units while P fertilization increased it by only 0.3 of a unit. In the glasshouse experiments, total yields of leaves, stems and haulms were not significantly affected by the application of lime while plant height was increased. Phosphorus fertilization increased total leaf, stem and haulm yields and plant height. The number of tubers per plant and tuber yield were either unaffected (4 experiments) or decreased (1 ... |
| Databáze: | OpenAIRE |
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