The influence of foliar application of fertilizers on naked oats yield and chemical composition grains

AbstractThe effect of marine calcite, a mixture of ortho- and polysilicic acid as well as orthosilicic acid applied as a foliar spray on the chemical composition of sugar beet leaves in the critical phase of nutrient supply (beginning of July) but also leaves and roots during harvest time in 2015–2016, was studied. The content of silicon in the leaves ranged from 1.24 to 2.36 g kg−1 d.m. at the beginning of July, 3.85–5.34 g kg−1 d.m. during harvest and 2.91–4.20 g kg−1 d.m. in the roots. The foliar application of silicon caused a significant increase in the content of magnesium and calcium in leaves (in July) as compared to the control. The sugar beet consumes approx. 75 kg Si ha−1, which is almost 3.5 times more than P and 20% more than Mg thus proving its importance for its species. About 70% of the silicon taken up by sugar beet is stored in roots and 30% in leaves. The pure sugar yield is most favorably influenced by two- and threefold foliar application of the product containing silicon in the form of orthosilicic acid stabilized with choline, and a threefold mixture of ortho- and polysilicic acid. The increase in the pure sugar yield is not the result of a change in the chemical composition of sugar beet plants, but their more efficient functioning after foliar application of silicon under stress conditions caused by water shortage.

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The Impact of Foliar Application of Calcium Fertilizers on the Quality of Highbush Blueberry Fruits Belonging to the â€˜Dukeâ€™ Cultivar

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha4028058 ◽

2012 ◽

Vol 40 (2) ◽

pp. 163 ◽

Cited By ~ 16

Author(s):

Ireneusz Dariusz OCHMIAN

Keyword(s):

Chemical Composition ◽

Calcium Chloride ◽

Foliar Application ◽

Fruit Size ◽

Mechanical Damage ◽

Calcium Content ◽

Highbush Blueberry ◽

The West ◽

The Impact

The studies were conducted in the period of 2010-2011, in the Laboratory of Orcharding at the West Pomeranian University ofÂ Technology in Szczecin, and related to the bushes of the highbush blueberry of the Duke cultivar. The authors examined the impactÂ of foliar calcium fertlizers (Calcinit, Calcium chloride, Fruton Calcium Calcium, FolanxÂ®Ca29 Lebosol Calcium Forte Calcium Forte)Â on the fruit size and firmness, their chemical composition, content of macronutrients in the foliage and fruits, and their colour. It wasÂ found that the applied fertlizers have varied impact on the examined attributes. The bushes sprayed with the Lebosol Calcium Forte andÂ Calcinit preparations had big fruits with a high content of K and Mg, and dark foliage. The application of the Lebosol Calcium ForteÂ fertilizer increased the content of polyphenols and vitamin C in the fruits. The smallest amounts of such compounds were determined inÂ the fruits sprayed with the Calcinit fertilizer. The highest firmness and resistance to mechanical damage were achieved in the case of theÂ fruits collected from the bushes sprayed with the foliar fertlizers containing calcium chloride, such as Fruton Calcium and Folanx Ca29.Â It was determined that the application of the calcium preparations resulted in the increase of the calcium content in the fruits and foliage.Â The highest amounts of this element were determined in the case of the plants sprayed with the Folanx Ca29 and Lebosol Calcium ForteÂ preparations.

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