Crop yields, boron availability and uptake in relation to phosphorus supply in a field experiment

Gabriela Mühlbachová, Pavel Čermák, Martin Káš, Kateřina Marková, Radek Vavera, Miroslava Pechová and Tomáš Lošák
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Gabriela Mühlbachová: Crop Research Institute, Prague, Czech Republic
Pavel Čermák: Crop Research Institute, Prague, Czech Republic
Martin Káš: Crop Research Institute, Prague, Czech Republic
Kateřina Marková: Crop Research Institute, Prague, Czech Republic
Radek Vavera: Crop Research Institute, Prague, Czech Republic
Miroslava Pechová: Crop Research Institute, Prague, Czech Republic
Tomáš Lošák: Facultyof Regional Development and International Studies, Mendel University in Brno, Brno, Czech Republic

Plant, Soil and Environment, 2018, vol. 64, issue 12, 619-625

Abstract: The boron (B) availability and uptake were studied in relation to different phosphorus rates applied into soils in a three-year field experiment (2015-2017). The experiment was carried out at the experimental station at Humpolec (Bohemian-Moravian Highlands, Czech Republic). Three rates of phosphorus (20-40-80 kg P/ha) were applied as triple superphosphate. The crop rotation was spring barley-winter oilseed rape-winter wheat. No systematic fertilization with B was used and the response of natural boron soil content to the different phosphorus supply was studied. The crop yields, B content in plants, B-uptake, and content of B (extracted by Mehlich 3 and NH4 acetate methods) were determined. Spring barley and winter wheat B uptake was about one order of magnitude lower in comparison with oilseed rape. Significant differences in B content in soils, in crop tissues and B-uptake, were found mainly under higher phosphorus doses (40 and 80 kg P/ha). NH4 acetate method showed better correlations between P and B contents in soils than Mehlich 3 method from the second experimental year. The P-fertilization may affect negatively the B-uptake by plants, particularly if the highly nutrient demanding crop is grown.

Keywords: nutrition; micronutrient; soil testing; boron deficiency; extraction procedure (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:64:y:2018:i:12:id:490-2018-pse

DOI: 10.17221/490/2018-PSE

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