Boron availability and uptake under increasing phosphorus rates in a pot experiment

Abstract

The boron (B) availability in soils, B uptake and possible B interactions with phosphorus (P) were studied in a pot experiment with increasing P rates. Three soil types of different characteristics were used for the experiment that lasted two years. The two soil tests were used in the experiment – Mehlich 3 and NH<sub>4</sub>-acetate. Significant positive correlations were found between barley dry matter yield, B content in plants and B uptake under increasing P treatments (P ≤ 0.001). The significant relationship for B content (P ≤ 0.001) was obtained between the used soil tests for all tested soils. A decrease of soil B content in soils under increasing P doses was determined. NH<sub>4</sub>-acetate soil test showed a significant relationship between B and P contents (P ≤ 0.001) within the studied soils in comparison with the Mehlich 3 method. Considering individual soils, the NH<sub>4</sub>-acetate test showed more often higher significance in comparison with the Mehlich 3 test. The interactions between P and B in soils should be taken in consideration when deciding about the phosphorus fertilization.

Interactive effect of phosphorus and boron on plant growth, nutrient accumulation and grain yield of wheat grown on calcareous soil

“…The enhanced B contents in wheat plants in relation to increasing P levels also suggested the improvement of metabolic functioning of plants. Muhlbachova et al (2017) have found positive correlation between dry matter yield and B contents in Barley (R 2 = 0.3273, p ≤ 0.001) under P fertilization. In contrast (Kaya et al, 2009) reported that B toxicity in tomato plants could be mitigated by the supplemental P fertilizer.…”

“…Plant biomass production can be predicted by the available P and B contents, as stated by Davies et al (2011). Several earlier investigations revealed that combined application of P and B significantly enhanced the growth, yield and quality of various field crops (Huang et al, 2012;Kabir et al, 2013;Chowdhury et al, 2015;Muhlbachova et al, 2017). Therefore, an adequate and consistent supply of P and B is necessary to achieve better nutrient balances and more biomass production.…”

“…The yield losses in wheat by sterility can be retrieved by ensuring adequate B supply to plants during reproductive phase. Several earlier investigations revealed that combined application of P and B significantly enhanced the growth, yield and quality of various field crops (Huang et al, 2012;Kabir et al, 2013;Chowdhury et al, 2015;Muhlbachova et al, 2017). The current study was therefore conducted to investigate the interactive effect of P and B on growth, nutrient accumulation and grain yield of wheat grown on calcareous soil.…”