Browsing by Author "Macrii, Lucia"

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    Alcătuirea structurală a cernoziomului tipic sub diverse practici agricole de lungă durată [Articol]
    (USARB, 2022) Macrii, Lucia; Cebanu, Dorin; Zaharco, Dionisie; Avram, Alexandru
    The longterm field experiments of the Selectia Research Institute of Field Crop, located in the North part of Republic of Moldova, provide precious data regarding the soil state under different agroecosystem management practices: crop rotations, fertilization systems, permanent crops – which also include extreme agroecosystems: fallow and black fallow. The paper referres to the study of chernozem physical state, characterized by soil structure – an „architectural” view of the soil profile. The soil samples were collected from the 0-40 cm soil layer at each 10 cm. The researches has shown that there are some key agricultural practices: less mechanic disturbance of the soil; the use of legumes and perennial grasses mixture; crops diversification; the organic fertilizer use – that beneficially influence the restoration and maintaining of soil structure in agroecosystems. The best soil aggregation attests in the fallow, a reproduced variant of the natural steppe ecosystem, and the extreme opposite - the black fallow, due to the „aggressive” management, has unstructured soil.
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    Conferinţa ştiinţifică naţională cu participare internaţională „Ştiinţa în Nordul Republicii Moldova: realizări, probleme, perspective”, 19-20 mai 2023
    (USARB, 2023) Capcelea, Valeriu; Ojegov, Alexandr; Macrii, Lucia; Capcelea, Victor
    Volumul cuprinde materialele de la Conferinţa ştiinţifică naţională cu participare internaţională „Ştiinţa în Nordul Republicii Moldova: realizări, probleme, perspective”, desfăşurată la 19-20 mai 2023. Lucrarea conţine 159 articole ştiinţifice, care abordează posibilităţile de valorificare a sectorului de cercetare şi inovare în Regiunea de Dezvoltare Nord a Republicii Moldova.
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    Conferinţa ştiinţifică naţională cu participare internaţională „Ştiinţa în Nordul Republicii Moldova: realizări, probleme, perspective”, 20-21 mai 2022
    (USARB, 2022) Capcelea, Valeriu; Ojegov, Alexandr; Macrii, Lucia; Capcelea, Victor
    Volumul cuprinde materialele de la Conferinţa ştiinţifică naţională cu participare internaţională „Ştiinţa în Nordul Republicii Moldova: realizări, probleme, perspective”, desfăşurată la 20-21 mai 2022. Lucrarea conţine 150 articole ştiinţifice, care abordează posibilităţile de valorificare a sectorului de cercetare şi inovare în Regiunea de Dezvoltare Nord a Republicii Moldova.
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    Hidrostabilitatea agregatelor structurale ale cernoziomului tipic sub diverse practici agricole de lungă durată [Articol]
    (USARB, 2024) Macrii, Lucia; Avram, Alexandru
    The paper referres to the study of chernozem water-stable aggregates under different agroecosystem management practices: crop rotations, fertilization systems, permanent crops: fallow and black fallow. The researches has shown that crop rotations with a high percentage in row crops (60%, 70%) recorded a lower content of hydrostable aggregates. Also it was ascertained that the crop rotation which includes: perennial crops (alfalfa - 3 years), supplement with organic fertilizers (70 t/crop-rotation) and has less row crops (40%/crop rotation), registered more hydrostable aggregates.
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    Modificarea proprietăților fizice ale solului sub impact antropic [Articol]
    (USARB, 2020) Macrii, Lucia
    The paper presents investigations concerning the carbonatic chernozem physical changes under anthropic impact (soil tillage). There were chosen some agroecosystems from long-term crop rotation, single-crop systems, weedfree fallow (55 years), fallow (55 years). The researches has shown that, with anthropic-impact amplification (soil tillage), physical soil properties such as structure, plasticity, adherence are getting worse. The best physical soil properties were established at fallow (55 years) and the worst at weed-free-fallow (55 years), the other studied agroecosystems takes an intermediate position between these two extremes.