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    Wyświetlanie 1-2 z 2
    Tytuł:
    Biodiversity of the cropping system in Poland’s family farms with various production strategies in terms of the requirements of the Common Agricultural Policy
    Autorzy:
    Madej, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2147977.pdf
    Data publikacji:
    2019-09-30
    Wydawca:
    Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
    Tematy:
    cropping system
    crop diversity
    natural environment
    family farms
    Opis:
    The structure of cropland adjusted to the specialization of farm production, apart from production and economic func-tions, may also be an element influencing the maintenance of bio-diversity of rural areas.The paper presents research on the diversity and uniformi-ty of biological cropping patterns in family farms with different production strategies. The three indicators: the number of plant species grown on the farm, Shannon-Wiener index (H’) and the Pielou evenness index (J’) were used. The study showed the differences of analyzed indexes. Mi-xed-production farms with the highest number of cultivated spe-cies in the cropping pattern (H’=1.80) were the most beneficial in terms of the diversity of crops (8.0). However, together with cattle and dairy farms, they were characterized by the most ho-mogeneous cropping pattern (J’=0.89 and J’=0.88). On the other hand, the group of grain farms that produced the lowest average number of cultivated crops (4.5) was characterized by the lowest diversity of crop structure (H’=1.16) and its lowest uniformity (J’=0.83). Taking into account the assumptions concerning crop diversi-fication, obligatory under the framework of greening, limit values of diversity and uniformity of cropping structure indicators were determined. The comparison of the cropping structure indicators obtained in the study with their limit values showed that the crop-ping structure in all groups of farms was characterized by much greater diversity and evenness, which resulted in its more benefi-cial environmental impact.
    Źródło:
    Polish Journal of Agronomy; 2019, 38; 46-51
    2081-2787
    Pojawia się w:
    Polish Journal of Agronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biodiversity of the crop structure on farms participating in the Polish FADN in terms of the requirements of the Common Agricultural Policy
    Autorzy:
    Madej, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2163437.pdf
    Data publikacji:
    2023-01-31
    Wydawca:
    Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
    Tematy:
    crop structure
    crop diversity and uniformity
    natural environment
    Polish FADN
    Opis:
    The crops structure (or cropping pattern) of a farm is a production and economic feature of a farm. In addition, it is an element shaping the biodiversity of rural areas.The paper presents research on the diversity and uniformity of the structure of crops on farms of various production directions and economic size, participating in the Polish FADN network. We use three biodiversity indicators: the number of plant species cultivated on the farm, the Shannon-Wiener index (H’) and the Pielou equality index (J’).The research showed the differences of the biodiversity indicator of the crop structure and its uniformity. The greatest diversity (Shannon-Wiener index) (H’ = 1.59) and uniformity (J’ = 0.71) of crops were found on farms with permanent crops, where the share of arable lands did not exceed 25%. Farms with field crops with a high share of industrial plants and potatoes had lower values of the indicators (H’ = 1.42 and J’ = 0.63, respectively), Different results were recorded on farms with granivorous animals, with the lowest diversity (H’ = 0.93) and uniformity (J’ = 0.42). Those farms had also the highest share of cereals in crop structure (75.5%).In the analysis of farms in terms of economic size, the highest value of the crop structure diversity index (H’ = 1.51) was found on big farms (100≤thous. €<500), with the highest share of industrial plants and vegetables in field cultivation. The lowest diversity, decreasing with the economic size of farms, was characteristic for very small farms (2≤thous. €<8) with the highest (75.3%) share of cereals.Taking into account the requirements of crop diversification applicable under greening policy, the limit values of the indicators of diversity and uniformity of the crop structure were determined for farms with more than 10 ha of arable land. The comparison of the crop structure indexes obtained in the research with their limit values for farms with different production directions showed that for all compared groups of farms the diversity of the crop structure exceeded the limit value. On the other hand, the uniformity of the sown structure was at the level of the limit value only on farms with field crops, and in other cases it did not exceed the limit value. In the case of all groups of farms, depending on the economic size, the diversity of the crop structure exceeded the limit value, and in the case of its uniformity, this applied to farms with an economic size of more than 50 thousand €.
    Źródło:
    Polish Journal of Agronomy; 2022, 51; 55-62
    2081-2787
    Pojawia się w:
    Polish Journal of Agronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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