Podil rocniku, odrud, prostredi a agrotechniky na prirustcich vynosovych prvku u bezplucheho a pluchateho ovsa.
1994
Moudry J.
The effects of the year (1989, 1990), the site (Ceske Budejovice, Kardasova Recice, Czech Republic), early and 2 week delayed sowing date, the seed number (450 and 550 grains per square m) and supplementary nitrogen fertilization (30 kg nitrogen in the 59DC phase) on the formation of the individual yield elements of naked oats (cv. Adam) and hulled oats (cv. Zlatak) were tested. The high compensation ability of oats in achieving the yields was confirmed. The year (34.19 %) and the seed number (31.43 %) showed the highest effects on the productive growth density, while the date of sowing and site were of less significance. The date of sowing proved to be more significant in effecting the productive growth density in cv. Zlatak, the site in cv. Adam. The number of grains in the panicle is effected predominantly by site (especially in cv. Zlatak - 49.39 % due to moisture demands, less in cv. Adam - 13.73 %), then by the seed number (22.44 %) and the year (21.84 %). The effect of sowing date (a fortnight difference) and the 3rd nitrogen rate in the DC59 phase show little significance in effecting the grain number in the panicle. The weight of thousand grains is a function of the cultivar (48.21 %, the differences result in the absence of hulls in cv. Zlatak) and the year (33.90 %). The effects of the site on the grain weight showed only 7.25 %, the other factors, due to compensation, were of no significance. The results of the experiments can be applied in the process of rationalization of oats production.
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