Control measures for the encroacher shrubSeriphium plumosum
| Autor: | H.A. Snyman |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Ecology
Chemistry ved/biology medicine.medical_treatment Sodium ved/biology.organism_classification_rank.species Soil Science chemistry.chemical_element Sodic soil Plant Science engineering.material Shrub chemistry.chemical_compound Tebuthiuron Agronomy Shoot engineering medicine Saline Lime Woody plant |
| Zdroj: | South African Journal of Plant and Soil. 29:157-163 |
| ISSN: | 2167-034X 0257-1862 |
| DOI: | 10.1080/02571862.2012.745905 |
| Popis: | Seriphium plumosum encroachment in South Africa has converted extensive areas of grassland into less productive shrubland–grassland, but its control is not being seriously addressed at present. Therefore, the short-term response of S. plumosum to different applications of nitrogen (N), phosphate (P), lime, sodium chloride (NaCl) and a soil-applied suspension herbicide, Molopo (active ingredient tebuthiuron), was examined. The lime and P-fertiliser treatments lead to no deaths of S. plumosum for any of the concentrations. The smaller the shrubs, the more sensitive they were to both N and NaCl applications. The minimum N-fertiliser applications of 30, 60, 120, 1 000 and 2 000 kg ha−1 were responsible for 100% death of shrubs with heights of 200, 300, 400, 500 and 600 mm, respectively. Sodium chloride application of only 100 kg ha−1 lead to 100% death of shrubs smaller than 400 mm high. Although high applications of NaCl led to total death of shrubs 600 mm high, the enormous problem of saline/sodic soil acco... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|