Tag Archives: manure application

565–575 P. Šařec and P. Novák
Influence of manure and activators of organic matter biological transformation on selected soil physical properties of Modal Luvisol
Abstract |
Full text PDF (404 KB)

Influence of manure and activators of organic matter biological transformation on selected soil physical properties of Modal Luvisol

P. Šařec¹ and P. Novák²

¹Czech University of Life Sciences Prague, Faculty of Engineering, Department of Machinery Utilization, Kamycka 129, CZ165 00 Prague 6 – Suchdol, Czech Republic
²Czech University of Life Sciences Prague, Faculty of Engineering, Department of Agricultural Machines, Kamycka 129, CZ165 00 Prague 6 – Suchdol, Czech Republic
*Correspondence: psarec@tf.czu.cz

Abstract:

Agricultural land in the Czech Republic threatened by a combination of water erosion, technogenic compaction and low level of soil carbon. The low levels of carbon in the soil interrelate also with the other threats mentioned. Application of organic matter into soil is one of the ways how to rectify this unfavourable condition. All of its forms can be supplemented by biological transformation’s activators. The aim of this paper was to verify the effect of organic fertilizer with a conditioning activator added, i.e. manure from deep-litter housing of dairy cows with PRP Fix added, and the effect of an activator conditioning soil, i.e. PRP Sol, on the change of soil physical properties, i.e soil bulk density, infiltration ability, cone index. In this respect, field trial was established at locality Lázně Bělohrad. Soil infiltration capabilities were measured using a ring infiltrometer with a diameter of 0.15 meters. Cone index was another measured item provided by the registration penetrometer. Bulk densities of each trial variant were evaluated using Kopecky’s cylinder. Concerning saturated hydraulic conductivity, all the variants treated with manure demonstrated its increase, namely with soil activators applied as well. Favourable effect on soil bulk density values could have been also observed. The change was often below the level of statistical significance. This could have been caused by a short only time of activator’s activity. It can be assumed that the effect is going to be gradual and the verification should be carried out also in following trial years.

Key words:

, , ,




948–958 P. Šařec and N. Žemličková
Soil physical characteristics and soil-tillage implement draft assessment for different variants of soil amendments
Abstract |
Full text PDF (462 KB)

Soil physical characteristics and soil-tillage implement draft assessment for different variants of soil amendments

P. Šařec* and N. Žemličková

Czech University of Life Sciences Prague, Faculty of Engineering, Department of Machinery Utilization, Kamycka 129, CZ 165 21 Prague 6 – Suchdol, Czech Republic
*Correspondence: psarec@tf.czu.cz

Abstract:

 The article discusses the results of measurement of soil physical properties and implement draft that has been done within field trial established at Sloveč in the year 2014. Different variants of treatment with substances for soil (PRP Sol) and manure (PRP Fix) amendment with organic fertilisers of various origins have been examined in terms of their influence on several parameters including energy demand for soil tillage. In the first stage, soil physical properties, i.e. soil bulk density and cone index, were measured. The results indicate that at soil upper layer, cone index of all the trial variants dropped relative to control regardless of the manure origin, manure treatment with PRP Fix, or the application of PRP Sol. Concerning soil bulk density, observed drop in values can be discerned with the application of cattle manure, and with majority of variants using pig manure where there are high dosage rates, but the drop was found also with PRP Sol alone. Subsequently, draft of chosen tillage implements was measured in order to assess potential decrease in energy demand of treated variants. There was almost 3% drop in aggregate unit draft after manure, and soil and manure activators’ application compared to the control. The decrease was attained in all variants except three. Two of them were the variants of untreated manure (cattle and poultry origin) application and the third was the variant of poultry manure treated with PRP Fix with additional application of PRP Sol. Here though, the difference was minor only.

Key words:

, , ,