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Wpływ użytkowania gleb na zawartość fosforu i potasu w glebach rdzawych

Wawrzyniak-Gramacka E., Drab M.

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski

2007

nr 133 (13)

431-438

W artykule przedstawiono wyniki badań porównawczych rdzawych gleb porolnych i przyległych do nich gleb leśnych pod względem zawartości fosforu i potasu. Opisywane gleby, niezależnie od sposobu użytkowania, cechowała niska zawartość oznaczanych pierwiastków, co sugeruje potrzebę nawożenia tych gleb P i K. Na zasobność gleb w fosfor i potas miało wpływ zakwaszenie i zawartość węgla organicznego.

Paper presents the results of comparative studies of post agricultural rusty soils and forest soils adjoining to then as regards content of phosphorus and potassium. The two types of soils, independently of the cultivation type, were characterized by low level of marked elements. This behavior suggests the need for fertilization with P and K. Acidification and the quantity of organic carbon had an influence on the amount of phosphorus and potassium in those soils.

Comparison of rollers after sowing of buckwheat

Mursec B., Janzekovic M., Cus F., Zuperl U.

Journal of Achievements in Materials and Manufacturing Engineering

2006

Vol. 17, nr 1-2

269--272

Purpose: This paper compares the effect of three types of rollers (rubber, edged and smooth) upon sprouting of three sorts of buckwheat seed (‘Darja’, ‘Bamby’ and ‘Gorenjka’). Rolling is a very important soil cultivation measure after sowing of small seed such as the buckwheat seed, particularly, during the time of drought when the test was performed. Design/methodology/approach: A field test was carried out on divided lots of land in a random block. Sowing and rolling were performed on 6 June 2003. During that period there was an extreme drought causing lack of humidity in the ground. The plants were counted on the 10 and 12 July, i.e., on the fourth and sixth day after sowing. There were most sprouting plants in case of rubber rollers, followed by smooth and edged rollers. Findings: The least plants sprouted on the non-rolled lots of land. The sort had a statistically characteristic effect on the share of plants sprouting during the fourth and sixth day after sowing. Research limitations/implications: The research was carried out only with three types of rollers and three sorts of buckwheat seed. Practical implications: The sort ‘Gorenjka’ had most sprouting plants, followed by the sort ‘Bamby’ and the sort ‘Darja’ with least sprouting plants. Originality/value: In our researches it was proved that the most favourable combination is the rubber roller and the sort ‘Gorenjka’.