The effect of boron and preparations with a complex of micro- and macroelements on the yield of winter rapeseed was studied. The importance of autumn application of boron was established, which ensured an increase in the yield of winter rapeseed both at 200 g B/ha and at 400 g B/ha, and also that autumn application of increased boron rates (400 g B/ha) has a smaller positive effect on yield than multiple application (in autumn 150 g B/ha and in spring twice at 150 g B/ha before flowering). The effectiveness of the maximum boron dose in the trial of 450 g B/ha was shown, which indicates a high need for this microelement for rapeseed plants. An increase in yield was shown with a double application of Wuxal Boron pH 2.0 l/ha, which contains more (B — 108 g/l) boron and a complex of micro- and macroelements (P — 183 g/l, N — 70 g/l, S — 5.5 g/l, Cu — 0.7 g/l, Fe — 1.4 g/l, Mn — 0.7 g/l, Mo — 0.014 g/l, Zn — 0.7 g/l) over a double application of Wuxal Oilseed Plus 2.0 l/ha, which contains a smaller amount of boron (B — 85 g/l), as well as a complex of micro- and macroelements (N — 15 g/l, S — 30 g/l, Mn — 20 g/l, Mo — 3.5 g/l). The highest yield in the trial was achieved with boron application in combination with micro- and macroelements for 5 spraying applications per season: autumn Wuxal Microplant 2 l/ha in stage BBCH — 14-15 and Wuxal Boron pH 2 l/ha in BBCH — 17-18; in the spring, Wuxal Microplant 2 l/ha in BBCH — 30-31, Wuxal Boron pH 2 l/ha in BBCH — 53-55 and Wuxal Oilseed Plus 2.0 l/ha in BBCH — 63-65 (total applied: B — 535.8 g/ha, P — 320 g/ha, N — 607 g/ha, K — 499 g/ha, S — 380 g/ha, Cu — 34.4 g/ha, Fe — 68.4 g/ha, Mn — 117.2 g/ha, Mo — 4.156 g/ha, Zn — 65.6 g/ha, Mg — 113 g/ha). This application increased yield by 440 kg/ha. The effectiveness of using both solo boron and preparations containing a complex of micro- and macroelements on different types of soils was demonstrated: on typical black soil with a humus content of 3,2 %, the increase in yield with the application of micro and macro elements was slightly lower than on gray forest soil with a humus content of 1,9 %. It is likely that this may indicate a higher level of leaching of borate anion in soils with lower humus levels. Therefore, on poorer soils, the need for boron application with micronutrients is higer.
Keywords: Brassica napus L., borate fertilizers, microelements, effect of boron on yield
Full text and supplemented materials
References
1. Dinh, A.Q., Naeem, A. & Mтhling, K.H. (2022). Growth and distribution of boron in oilseed rape (Brassica napus L.) as affected by boron supply. Plants, 11(20), pp. 2746-2754. https://doi.org/10.3390/plants11202746
2. Morgun, V.V., Cakmak, I., Schwartau, V.V. & Mykhalska, L.M. (2020). Physiological peculiarities of sunflower boron nutrition. Fiziol. rast. genet., 52(3), pp. 187-195. https://doi.org/10.15407/frg2020.03.187
3. Aftab, T., Landi, M., Papadakis, I.E., Araniti, F. & Brown, P.H. (2022). Boron in Plants and Agriculture. Oxford: Elsevier Inc.
4. Takano, J., Noguchi, K., Yasumori, M., Kobayashi, M., Gajdos, Z., Miwa, K., Hayashi, H., Yoneyama, T. & Fujiwara, T. (2002). Arabidopsis boron transporter for xylem loading. Nature, No. 420, pp. 337-340. https://doi.org/10.1038/nature01139
5. Arunkumar, B.R., Thippeshappa, G.N., Anjali, M.C. & Prashanth, K.M. (2018). Boron: A critical micronutrient for crop growth and productivity. Pharm. Phytochem., 7(2), pp. 2738-2741.
6. Brown, P.H., Bellaloui, N., Wimmer, M.A., Bassil, E.S., Ruiz, J., Hu, H., Pfeffer, H., Dannel, F. & RШmheld, V. (2002). Boron in plant biology. Plant Biol., No. 4(2), pp. 205-223. https://doi.org/10.1055/s-2002-25740
7. Marschner, P. (2011). Mineral nutrition of higher plants. 3rd edition. London: Academic Press. https://doi.org/10.1016/C2019-0-00491-8
8. Li, S., Yan, L., Venuste, M., Xu, F., Shi, L., White, P.J., Wan, X. & Ding, G. (2023). A critical review of plant adaptation to environmental boron stress: Uptake, utilization, and interplay with other abiotic and biotic factors. Chemosphere, No. 10, pp. 338-350. https://doi.org/10.1016/j.chemosphere.2023.139474
9. Vera-Maldonado, P., Aquea, F., Reyes-Reyes-DHaz, M., C«rcamo-Fincheira, P., Soto-Cerd, B., Nunes-Nesi, A. & Inostroza-Blancheteau, C. (2024). Role of boron and its interaction with other elements in plants. Front. Plant Sci., No. 2, pp. 15-30. https://doi.org/10.3389/fpls.2024.1332459
10. Zhao, Z., Wang, Y., Shi, J., Wang, S., White, P.J., Shi, L., Xu, F. (2021). Effect of balanced application of boron and phosphorus fertilizers on soil bacterial community, seed yield and phosphorus use efficiency of Brassica napus. Sci. Total Env., No. 1, pp. 346-355. https://doi.org/10.1016/j.scitotenv.2020.141644
11. Kalantarahmadi, S. & Daneshian, J. (2023). Improving of canola (Brassica napus L.) yield and oil quality by foliar application of micro-nutrients under high-temperature stress. J. Soil Sci. Plant Nutr., 23, pp. 351-367. https://doi.org/10.1007/s42729-022-01016-2
12. Goldbach, H.E., Rerkasem, B., Wimmer, M.A., Brown, P.H., Patrick, H., Thellier, M. & Bell, R.W. (2002). Boron in Plant and Animal Nutrition. New York: Springer Science + Business Media, LLC. https://doi.org/10.1007/978-1-4615-0607-2
13. Warington, K. (1923). The effect of boric acid and borax on the broad been and certain other plants. Ann. Bot., 37, pp. 629-672. https://doi.org/10.1093/oxfordjournals.aob.a089871
14. Bulut, H. (2019). The effect of climatic factors on boron nutrition of plants. 9th International symposium on atmospheric sciences ATMOS (pp. 1-5), Istanbul.
15. Brdar-Jokanoviє, M. (2020). Boron toxicity and deficiency in agricultural plants. Int. J. Mol. Sci., 21(4), pp. 1-20. https://doi.org/10.3390/ijms21041424
16. Zhao, S., Huq, E., Fahad, S., Kamran, M. & Riaz, M. Boron toxicity in plants: understanding mechanisms and developing coping strategies; a review. PudMed. https://doi.org/10.1007/s00299-024-03317-5
17. Mтhlbachov«, G., ‡erm«k, P., K«л, M., Markov«, K., Vavera, R., Pechov«, M. & Loл«k, T. (2018). Crop yields, boron availability and uptake in relation to phosphorus supply in a field experiment. Plant Soil Environ., 64(12), pp. 619-625. https://doi.org/10.17221/490/2018-PSE
18. Brown, P.H. & Shelp, B.J. (1997). Boron mobility in plants. Plant and Soil, No. 7, pp. 85-101. https://doi.org/10.1023/A:1004211925160