• CONSERVING OF THE RESOURCES

    Effect of the implementation of agro-technical and ameliorative measures in soils with poor technological and pedological properties

    Mechanization in agriculture & Conserving of the resources, Vol. 66 (2020), Issue 4, pg(s) 140-145

    Applying appropriate tillage systems, agro-technical and ameliorative measures can stop the negative changes in soil functions and stabilize and improve soil fertility through a systematic agro-technical approach.
    The aim of the study is to investigate the effect of the introduction of new solutions in agro-technology on cultivation of arable crops on soils with impaired fertility. In a three-field crop rotation with potato, wheat and corn cultivation, after the application of soil tillage and liming systems, it has been found that soil tillage systems have a direct and indirect impact on the productivity of crops grown under crop rotation, setting the conditions for the cultivation of crops other agrotechnical activities.
    The deeper basic cultivations applied to the potatoes on Chromic Luvisosl and EutricPlanosols, leads to lower values of bulk density and strength.
    Potato cultivation has a significant effect on both limestone and ash input, with a positive effect on corn and wheat.
    On the basis of the results obtained from the field experiments, a technology for the production of potatoes and wheat grown in a three-field crop rotation on soils with medium to highly acidic reaction of the soil solution – Chromic Luvisosl and EutricPlanosols in the study area is recommended.

  • CONSERVING OF THE RESOURCES

    On the possibility of conducting fast and reliable soil tests

    Mechanization in agriculture & Conserving of the resources, Vol. 66 (2020), Issue 2, pg(s) 71-76

    The current interest in soil awareness is largely due to the increased importance of growing crops in a changing climate. It is characterized by prolonged droughts, followed by short but intense rainfall, often accompanied by strong winds and low temperatures. In a number of situations and due to insufficient information about the condition of the soil and the applied technologies for its treatment, the latter is not able to absorb rainwater, surface water runoff is formed, which exports large amounts of fertile soil and nutrients. An innovative approach is proposed to perform fast and accurate soil tests using its electromagnetic conductivity. A number of physical, chemical and biological properties can be determined by this method.

  • CONSERVING OF THE RESOURCES

    Changes in soil properties due to application of digestate

    Mechanization in agriculture & Conserving of the resources, Vol. 65 (2019), Issue 4, pg(s) 129-131

    The EU is currently addressing the problem of depletion of phosphate, which is a source of phosphorus. Due to the usage of modern digestate treatment enabling macroelements recycling, the digestate can be a suitable substitute for anorganic fertilizers. This experiment is focused on improving the soil properties due to digestate application in sugar beet growing region. Applicated digestate comes from a biogas plant of agricultural cooperative Velešovice. The obtained results show better physical properties (soil structure, stability of soil aggregates) and differences in pH values, Cox (%) and nutrient content between variants.

  • Identification of spatial variability of soil physico-chemical properties for precision farming

    Mechanization in agriculture & Conserving of the resources, Vol. 64 (2018), Issue 4, pg(s) 117-119

    Site-specific crop management practices, known as precision farming, requires information about detailed spatial distribution of soil physico-chemical properties related to the yield productivity. Traditional mapping of soil properties in form of soil sampling is inefficient for assessment of high level of spatial variability due to the high costs. For this reason, a study was conducted within the research projects NAZV QJ1610289 and TACR TH02030133 to evaluate the digital soil mapping techniques, including proximal sensing methods in the form of on-the-go measurement of soil electrical conductivity, for mapping of agronomical relevant soil properties.The experimental work was carried out on the selected fields of Rostenice a.s. farm enterprise, located in the South Moravia region of Czech Republic. Total area of 476 ha within eight fields was measured from 2013 to 2016 by using CMD-1 instrument (GF Instruments, Czech Republic) mounted on the plastic sledges. This device measures the electrical conductivity by the principle of electromagnetic induction (EMI) with 0.98 m dipole center distance and effective depth of measurement of 1.5 m (vertical mode) or 0.75 m (horizontal). Soil properties were obtained by soil sampling in irregular grid with the density of 1 sample per 3 ha. Soil samples were taken from the depth of 30 cm and analyzed for soil texture (percentage of clay, silt and sand particles), content of available nutrients (P, K, Mg, Ca), cation exchange capacity (CEC), soil organic matter content (SOM) and wilting point (WP). The results showed different level of spatial variability among the observed fields. The correlation analysis proved differences in main sensitivity of EMI to the soil properties, mainly the percentage of clay particles smaller than 0.002 mm (r = 0.598). The correlation between EMI and nutrients content in soil and pH value was significant only for few fields. These outcomes showed, that rather than predictor of soil properties could be on-the-go measurement of soil EC used for identification of main zones within the fields at high spatial level.