Abstract
The present study was conducted to assess the effect of various multinutrient foliar fertilization treatments on nutrient accumulation in the roots and leaves of sugar beet. The field experiment was performed in two growing seasons (2013 and 2014) in the southeastern region of Poland. The experiment was conducted as a randomized block design with four replications. To determine the content of the selected nutrients (Si, N, P, K, Mg, and Ca), samples of leaves and roots were collected during harvest. Fertilization treatments applied on the plants’ leaves affected the silicon (Si) content in the roots of sugar beet and the total Si uptake. Moreover, foliar fertilization had a significant effect on the P content in the leaves and the N and K contents in the roots. The Si content in the sugar beet leaves and roots ranged from 0.55 to 1.97 g kg−1 dry matter (d. m.) and from 0.49 to 1.59 g kg−1 d. m., respectively. The total Si uptake ranged from 20.3 to 46.7 kg ha−1. Most of the Si content taken up with each fertilization variant was accumulated in the roots. The yield of pure sugar was not correlated with the Si content in the leaves and roots.
Highlights
Silicon (Si) is the most abundant mineral element in the soil, it is not considered as an essential element for plant growth
The results showed that the pure sugar yield was not correlated with the Si content in both the leaves and roots (Table 5)
Our results did not confirm such high Si contents in any part of the sugar beet plants, because the average contents of this element in the leaves and roots were 1.26 and 0.93 g kg−1 d. m., respectively, which is five times less than that reported by the above-cited authors and similar to or slightly higher than the values obtained in other experiment.It is worth emphasizing that both our experiments presented and published in 2018 were carried out in the same location and in the same years (2013–2014), but in different soil conditions in the year 2013
Summary
Silicon (Si) is the most abundant mineral element in the soil, it is not considered as an essential element for plant growth. Beneficial effects of Si on rice growth are attributable to the characteristics of a silica gel that is accumulated on the epidermal tissues in rice. These effects are observed most clearly under high-density cultivation systems with heavy applications of nitrogen fertilizers. The application of Si has been found to be beneficial for the growth, development, and yield of various plants and to alleviate various stresses such as nutrient imbalance. Si is abundant in most soils; environmental
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