Our findings showed that homeostatic instability under highest levels of NH 4 ⁺, especially in the plants cultivated without Si in the nutritive solution resulted in decreased shoots and roots dry matter production. In addition, shoot and root increased as higher levels of NH 4 ⁺ in the nutrient solution. Our results indicate that in presence of Si both and in shoots and roots increased significantly and reaching its highest value at 15 mmol L − 1 of NH 4 ⁺ in the nutrient solution, while shoot remained stable, in roots increased with NH 4 ⁺ concentrations of 22.5 and 30 mmol L − 1, respectively. The experimental design was a randomized block design based on a 5 × 2 factorial scheme with four replicates. Early Wonder in the absence and presence (2 mmol L − 1 ) of Si.

We conducted a hydroponic experiment to evaluate the effects of five concentrations of ammonium (1, 7.5, 15, 22.5, and 30 mmol L − 1 ) on C:N:P stoichiometry and yield of sugar beet cv. In this study, we investigated the effects of different NH 4 ⁺ concentration on the C:N:P stoichiometry and yield of sugar beet grown under hydroponic conditions, and examined whether the application of Si can alleviate the detrimental effects caused by toxic levels of NH 4 ⁺. However, underlying studies on the effects of ammonia toxicity on C:N:P stoichiometric homeostasis and the role of Si in these stoichiometric ratios are lacking. In this scenario of NH 4 ⁺ stress, it is important to use strategies to mitigate this toxicity, and the use of silicon (Si) has promoted promising results. Most plants develop severe toxicity symptoms when grown on NH 4 ⁺ as the sole nitrogen source, resulting in physiological and nutritional disturbances that slow vegetable growth.

Silicio organico oti