| Autor: |
Swain, Sanatan Kumar, Kalidas-Singh, Sagolshem, Puyam, Anita, Thakuria, Dwipendra, Maimom, Soniya, Zhiipao, R. Rustum, Debnath, Ashim, Bhuyan, Samikhya, Homeshwari-Devi, Mayanglambam, Huidrom, Sangeeta, Tsomu, Thupten, Umbrey, Yashi, Bagang, Punam, Ravat, Vikas Kumar, Lap, Bharati, Tangjang, Avicha, R., Devegowda S. |
| Předmět: |
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| Zdroj: |
Frontiers in Plant Science; 2024, p01-13, 13p |
| Abstrakt: |
Rhizospheric based phosphorus (P) fertilizer management is necessary for crop production due to environmental concerns caused by the overuse of the broadcasting method and limited P reserves. This study proposes a comparison of P management that enhances P nutrition in Chilli (variety: Arka Khyati) through seedling root-dipping (SRD) in P-enriched slurry (SSP-amended; pH of 8.1), micro-dose placement (MDP; drill and place closer to plant root), and full dose (187.6 mg kg-1) placement by broadcasting (FD). In SRD, seedlings were dipped in five different P concentrations (50, 100, 200, 300, and 400 mg P2O5 kg-1) for varying durations (0, 1/2, 1, 2, 3, and 4 hours) and transplanted into pots (dipping in 0 mg P2O5 kg-1 consider as control), along with the MDP and FD treatments (total 33 treatments with 5 replications). [Seedlings dipped in 200, 300, and 400 mg P2O5 kg-1 died within a week after transplanting, thus were excluded from further analysis]. The amount of P received in MDP and FD were 21-90 times higher than P adhesion to seedling roots in SRD treatments. Root volume was in order SRD>MDP>FD. Seedlings dipped in 100 mg P2O5 kg-1 for 2 hours in SRD exhibited the highest biomass production, P-use and -recovery efficiency; and showed an increase of 52%, 178%, and 293% in FD, MDP, and SRD compared to the control respectively. It is recommended to use the SRD method with other P sources in reduced amount to maintain the native P pool in soil, and further multilocational trials are needed to validate. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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