Vaclovas Boguzas

Vytautas Magnus University Agriculture Academy

The aim is to investigate the long-term impact of tillage technologies combined with the continuous application of straw and green manure on the sustainability of agroecosystems. Methods: Soil shear resistance was determined in the 0–10 and 10–25 cm soil layers with a Geonor 72,410 hardness tester after the sowing of spring rape and barley or after...

The scientific aim of this article is to elucidate the effects of various tillage practices on soil properties and crop yields; additionally, it seeks to highlight the significant potential of specific farming systems in enhancing soil organic carbon, thereby positively influencing CO2 emissions from soil. In the experimental station of Vytautas Ma...

Depending on the type of agricultural use and applied crop rotation, soil organic carbon accumulation may depend, which can lead to less CO2 fixation in the global carbon cycle. Less is known about organic carbon emissions in different crop production systems (cereals, grasses) using different agrotechnologies. There is a lack of more detailed stud...

A comprehensive investigation was undertaken at Vytautas Magnus University Experimental Station, located at 54°52’50” N latitude and 23°49’41” E longitude on soil (Epieutric Endocalcaric Planosol – PLe-gln-w) since 1999, to understand the impacts of different agrotechnical measures on soil health and crop yield. Two primary factors were assessed. F...

The research focuses on how reduced tillage, straw incorporation, and green manure application impact different elements of winter oilseed rape agroecosystem. The main objective is to investigate the impact of these practices on biometric parameters and the yield of winter oilseed rape. The specific research objectives are to investigate the effect...

SOMPACS is a project recommended by EJP SOIL for funding under the 1st External Call "Towards Healthy, Resilient and Sustainable Agricultural Soils". The goal of this project is to assess management practices that enrich organic matter pools that are resilient to rapid microbial decomposition. The project started in 2022 as a consortium of 12 resea...

Plant and soil health depend on crop rotation. However, less is known about the impact of crop rotation systems on plant metabolic response. The aim of the study was to evaluate the contents of phenolic compounds and their interaction with antiradical activity in winter rye (Secale cereale L.) in four crop rotations, arranged since 1967: 1) Intensi...

A long-term field experiment has been ongoing since 1999 at the Experimental Station of Vytautas Magnus University’s Agriculture Academy. According to the latest edition of the International Soil Classification System, the soil in the experimental field can be classified as Planosol, with a silty medium-loam texture at a depth of 0–20 cm and a silt...

This study investigates the long-term impact of soil tillage systems and crop residue incorporation on agrophysical properties. A long-term field experiment has been conducted since 1999 at the Ex-perimental Station of Vytautas Magnus University Agriculture Academy. According to the latest edition of the International Soil Classification System, th...

In this study, a field experiment was performed at the Experimental Station of Vytautas Magnus University Agriculture Academy in Lithuania from 2018 to 2020. The researched soil comprised carbonate deeper gleyic leachate (IDg4-k) (Calc(ar)i Endohypogleyic Luvisol) (LVg-n-w-cc). A two-factor field experiment was performed on spring and winter wheat....

Policies to reduce the use of mineral fertilisers and chemical pesticides have spurred research into biological approaches to soil and plant protection and biostimulation. The two-factorial field experiment was carried out on the crops of spring and winter wheat at the Experimental Station of Vytautas Magnus University Agriculture Academy, Lithuani...

In this study, our investigated hypothesis was that different pre-crops would have different effects on earthworm activity and soil CO2 emissions. We also hypothesized that a pre-crop clover–timothy mixture would perform best in terms of increasing the share of organic carbon in soil and, in this way, contribute to improving the sustainability of a...

The long-term implementation of crop rotation and tillage has an impact on the soil environment through inputs and soil disturbance, which in turn has an impact on soil quality. Tillage has a long-term impact on the agroecosystems. Since 1999, a long-term field experiment has been carried out at the Experimental Station of Vytautas Magnus Universit...

One of the main goals of the 21st century’s developing society is to produce the necessary amount of food while protecting the environment. Globally, particularly in Lithuania and other northern regions with similar climatic and soil conditions, there is a lack of data on the long-term effects of crop rotation under the current conditions of intens...

Intensive tillage accelerates soil erosion, reduces the content of organic matter and carbon in the soil. Scientists around the world talk extensively about soil conservation policies. The process of accumulation and maintenance of soil organic matter is important for the long-term preservation of agro-system productivity. Crop production technolog...

Intensive farming and short crop rotations have encountered problems of soil degradation. Finding solutions to these problems as well as new challenges requires returning to old farming practices, adapting them to current issues. In 1965, a field experiment (crop rotation collection) was set up at the Experimental Station of Vytautas Magnus Univers...

Equally effective way to achieve sustainable farming and the challenge set by the European Commission on 20 May 2020: proper crop rotation and thus reduction of the quantity of on-farm chemicals. Long-term stationary field experiments were established in 1966 at Vytautas Magnus University Experimental Station (54°53′ N, 23°50′ E). The study was con...

The composition of weed communities in agricultural crops is dependent on soil properties and the applied agronomic practices. The current study determined the effect of different tillage systems and crop residue on the soil weed community composition. The research programme encompassed 2013–2015 in a long-term field experiment located in the Exper...

A long-term field experiment was carried out at the Experimental Station of the VDU Agriculture Academy (formerly Aleksandras Stulginskis University), Institute of Agroecosystems crop rotation collection (equipped in 1967), during 2015–2017. The soil of the Experimental site is moderately fine textured Calc(ar)i-Endohypogleyic Luvisol. The research...

Long-term field experiment was established in 1966 at the Experimental Station of Vytautas Magnus University, in the crop rotation collection of the Institute of Agroecosystems and Soil Science established in 1967. The soil is brown drained deeper carbonic shallow clayey (RDg8–k2) – Endocalcari-Epihypogleyic Cambisol (sicco) (CMg-p-w-can). The expe...

Since 1999, a long-term field experiment has been done at the Experimental Station of Vytautas Magnus University Agriculture Academy (former Aleksandras Stulginskis University) at 54º52′50 N latitude and 23º49′41 E longitude. The soil of the experiment site is Epieutric Endocalcaric Endogleyic Planosol (Endoclayic, Aric, Drainic, Humic, Episiltic)...

The influence of reduced tillage (RT) on the biochemical properties of soil and crops has been studied thoroughly worldwide. In contrast, we lack regular results on long-term (more than 20 years) RT and especially no-till (NT) impact on the composition of soil and main crops in semi-humid subarctic climate of the Baltic States. For this reason, inv...

Nowadays the priority in agriculture is given to the soil tillage systems which enable reduction of organic matter decomposition. Our investigation was aimed to assess the long-term impact of reduced intensity tillage systems, straw and green manure combinations on soil organic matter quantity and quality. Since 1999, a long-term field experiment h...

Lauko eksperimentas atliktas 1967–2012 m. Aleksandro Stulginskio universiteto Bandymų stotyje, vidutinio sunkumo karbonatingame giliau glėjiškame išplautžemyje. Javai auginti aštuoniose sėjomainose: trilaukėje, javų, Norfolko, pašarinėje, sideracinėje, intensyviojoje, lauko be kaupiamųjų ir lauko su kaupiamaisiais augalais bei rugių monopasėlyje. Ž...

Little is known about the effects of modern soil management practices, especially no-tillage, on soil physical state, soil pore size distribution and soil water capacity after a long-time of successive application on different soil types. The investigations were performed in 2014 at the Institute of Agriculture, Lithuanian Research Centre for Agric...

Little is known about the effects of modern soil management practices, especially no-tillage, on soil physical state, soil pore size distribution and soil water capacity after a long-time of successive application on different soil types. The investigations were performed in 2014 at the Institute of Agriculture, Lithuanian Research Centre for Agric...

A long-term field experiment (since 1988) was carried out at the Experimental Station of the Aleksandras Stulginskis University (ASU, 54° 52′ N, 23° 49′ E) in the conditions of transitional maritime-climate. Research data from the 2010-2012 experimental period are presented. The soil of the experimental site is silty light loam Endohypogleyic-Eutri...

The influence of crop rotation systems with different portions of nitrogen-fixing crops, intermediate crops, and organic fertilizers on the enzymatic activity and humus content of soils in organic farming was studied. The highest activity of the urease and invertase enzymes was determined in the soil under the crop rotation with 43% nitrogen-fixing...

The allelopathicaly active substances (the allelochemicals) which include phenolics or terpenoids generally representing secondary metabolites in cover crops may have stimulative, suppressive or a neutral effect on subsequent crop emergence and growth therefore is influencing yield. The aim of our investigations was to evaluate the allelopathic eff...

Field experiments were carried out for three years under the conditions of sustainable agriculture at the Lithuanian University of Agriculture's Experimental Station and under the conditions of organic agriculture in Kazli kiai organic farm. The study was aimed to evaluate the effects of climate factors on the productivity of different catch crop s...

The influence of soil tillage, different catch crop species (Trifolium pratense L., Lolium multiflorum Lam., Sinapis alba L., Brassica napus L.) for green manure as well as farmyard manure on weed infestation in a barley stand under the conditions of sustainable and organic agriculture was investigated. Field experiments showed that weed density an...

Conventional tillage is not only high energy and labour consuming process, but it can also have a negative impact on soil properties. The objective of this study was to determine the influence of different tillage systems: deep conventional ploughing (CP) at 23-25 cm depth, shallow ploughing (SP) at 10- 12 cm depth, shallow loosening with a chisel...

A field experiment was carried out in an organic certified field of the Experimental Station of the Lithuanian University of Agriculture in 2003–2007. The soil type was Calc(ar)i Epihypogleyic Luvisol (LVg-p-w-cc). Nitrogen balance was evaluated after four years of experiment. Four 7-year crop rotations with a different ratio of nitrogen fixing cro...

Weed seed-bank response to organic farming duration under two different crop rotations was investigated. Long-term organic farming increases the diversity of weed species in "good" and "poor" crop rotation by 30 and 57%. The amount of weed seeds in the soil in the ninth year of organic farming in "good" crop rotations decreases by 41.6%, while in "...

Field experiments were conducted in 2000 and 2001 under the conditions of sustainable farming at the Experimental Station of the Lithuanian University of Agriculture and under the conditions of organic farming in the territory of Kazliskiai organic farm. The objective was to study the influence of different catch crops (Trifolium pratense L., Loliu...

Weed and weed seed-bank response to different tillage systems, straw and catch crops was investigated over the years 2000-2003 in a field trial with continuously grown barley. We found no effect of straw on weed density on the first two years of the experiment. Lower number of weeds in plots with straw was found on later years. Shallow loosening in...

The influence of organic farming on weed seed bank under two different crop rotations: with and without manure, was investigated in an organic farm of Kazliskiai over the period of 1997-2002. Proven by qualitative index, organic farming increases the diversity of weed species. Seeds of 10 weed species were found in one experimental field at the beg...