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| Titel: |
Potassium release by some delaware soils |
| Auteur: |
Hsu, Wei-Wei Liebhardt, William C. Cotnoir, L. Spoljaric, N. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 10 (1979) nr. 7 pagina's 1037-1056 |
| Jaar: |
1979 |
| Inhoud: |
The A and B horizons of 29 Delaware soils were extensively cropped to sudan grass (Sorghum vulgare Pers. Piper) and corn (Zea mays L. Pioneer Brand Hybrid No. 3958) to evaluate the K release characteristics of these soils. Various chemical analyses were made on these soils. The double acid North Carolina extractant (NCE) was good at predicting K uptake during the early stages of the experiment and was most sensitive with A horizon soils. However, this extractant was not suitable for predicting K uptake in the latter part of the experiment when nonexchangeable K was more important. Boiling IN HNO3 was a good extractant in the latter part of the experiment when nonexchangeable K was being released and it also predicted K uptake from the B horizon well. Soils leached with 0.025M MgCl2 and incubated 25 days to determine K released were also highly correlated with plant uptake. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 8 gevonden artikelen
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