The effect of application of potassium, magnesium and sulphur on wheat and barley grain yield and protein content
Laen...
Kuupäev
2019
Kättesaadav alates
Autorid
Hlisnikovský, L.
Čermák, P.
Kunzová, E.
Barłóg, P.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The objective of our experiment was to study the effect of mineral fertilizers, rich
mainly in the K, Mg and S content, and compare their effect on grain yield and protein content
of winter wheat and winter barley with fertilizer treatments without these elements. The analyzed
fertilizer treatments were 1) Control, 2) mineral nitrogen treatment (N), 3) mineral nitrogen with
phosphorus (NP), 4) NP with potassium, magnesium, and sulphur (NP+KMgS), and 5) NP with
magnesium, sulphur and minor part of manganese (4%) and zinc (1%) (NP+MgSMnZn). The
experiment was established in Lukavec experimental station (the Czech Republic) in 2013 and
lasted until 2017. The crop rotation consisted of four arable crops: winter wheat, winter barley,
rapeseed, and potatoes, but only winter wheat and winter barley are analyzed in this paper (grain
yields and crude protein content).
In comparison with the Control, the application of mineral fertilizers significantly increased grain
yield and protein content of both kinds of cereal. Comparing mineral fertilizers, no significant
differences were recorded between N, NP, NP+KMgS and NP+MgSMnZn treatments, showing
that nitrogen was the most limiting factor affecting yield and protein content, and initial
concentrations of K and Mg were suitable and capable to cover cereal’s demands. However,
application of fertilizers has increased the K and Mg soil content and thus prevents the soil from
the element’s deficiency, which does not has to be recognized in the early stages by visual
observation of arable plants. The effect of the year was also significant as two out of four seasons
were characterized by high temperatures and drought.
Kirjeldus
Article
Märksõnad
crude protein content, grain yield, Hordeum vulgare L., magnesium, mineral fertilizers, potassium, sulphur, Triticum aestivum L., articles