| Autor: |
Muhammad Irfan, Muhammad Abbas, Javaid Ahmed Shah, Nizamuddin Depar, Muhammad Yousuf Memon, Niaz Ali Sial |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Eurasian Journal of Soil Science, Vol 8, Iss 1, Pp 17-26 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2147-4249 |
| DOI: |
10.18393/ejss.484654 |
| Popis: |
Most of the arable soils in Pakistan are deficient in plant available phosphorus (P) and boron (B) primarily due to alkaline and calcareous nature along with low organic matter. A combined deficiency of these nutrients may intensify the plant growth suppression by reducing their efficient utilization. A pot experiment was conducted to investigate the interactive effect of P and B on growth, nutrient accumulation and grain yield of wheat grown on calcareous soil. Wheat crop was grown at three P levels (45, 90 and 135 kg P ha-1) in combination with five B levels (0, 0.5, 1.0, 1.5 and 2.0 kg B ha-1) following completely randomized design. The results revealed that yield and yield related attributes increased linearly with the addition of B at each P level. Nonetheless, the significant interactive effect of both nutrients was most pronounced in the treatment having 90 kg P ha-1 and 1.5 kg B ha-1. Applied B rates resulted in relatively higher P concentration in grains and straw at P level of 90 kg ha-1 contrarily to 45 and 135 kg P ha-1. The B concentration in grains and straw increased with corresponding addition of B at each P level but at variable rate, with the maximum response at higher P level. Grain and straw yield illustrated positive correlation with total P uptake (R2 = 0.96 and 0.81) and total B uptake (R2 = 0.95 and 0.70) respectively. Likewise, positive correlation (R2 = 0.94) between total P uptake and total B uptake under combined application of P and B indicated their synergistic relationship. Overall, the treatment combination of 90 kg P ha-1 with 1.5 kg B ha-1 was found as the most suitable dose for better plant growth, nutrient accumulation and grain yield of wheat. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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