Browsing by Author "Martyniuk, Stefan"
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Item BIOLOGICAL FIXATION OF N2, SYMBIOTIC BACTERIA OF LEGUMES IN POLISH SOILS AND ESTIMATION OF THEIR NUMBERS(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach) Martyniuk, StefanItem Czy rolnictwo konwencjonalne (intensywne) szkodzi mikroorganizmom glebowym?(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach) Martyniuk, StefanItem EVALUATION OF PSEUDO-MICROBIAL BIOPREPARATIONS USED IN CROP PRODUCTION(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2011) Martyniuk, Stefan; Księżak, JerzyItem Genetic diversity of Azotobacter strains isolated from various soils of Poland(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2023) Kozieł, Monika; Gałązka, Anna; Martyniuk, StefanItem In memory of prof. Władysław Myśkow(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2010) Martyniuk, StefanItem Occurrence of Azotobacter spp. in cultivated soils in Poland(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2021) Kozieł, Monika; Martyniuk, Stefan; Siebielec, GrzegorzItem Ocena efektywności symbiotycznej szczepów bakterii z rodzaju Rhizobium wyizolowanych z brodawek korzeniowych bobiku (Vicia faba L. Var. Minor) i grochu (Pisum sativum L.)(Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy, 2017) Kozieł, Monika; Siebielec, Sylwia; Siebielec, Grzegorz; Martyniuk, StefanItem Particulate organic matter and microbial biomass c contents in soils with different mechanical structure(IUNG-PIB, 2005) Gajda, Anna; Martyniuk, StefanThe studies were based on a long-term microplot experiment located at Pulawy Experimental Station ofthe Institute ofSoil Science and Plant Cultivation - National Research Institute (IUNG-PIB). There were 18 of 1.5 m2 experimental microplots (1.0 m x 1.5 m, and depth 1.5 m) filled at the bottom with silt loam as a bed rock, and at the top with: 1 - black earth, 2 - alluvial soil, 3 -Ioess, 4 -light loam, 5 -light loamy sand underlaid with clay loam, 6 -light loamy sand underlaid with slightly loamy sand. The aim was to compare the partieulate organie matter (POM) quantities and microbial biomass C contents in soils with different mechanical structure. The obtained results showed a significant correlation coefficient (R = 0.883, a = 0.05) between soil organic matter (SOM) and particulate organic matter (POM) contents. However, in our studies this relationship seems not to be a clear-cut one. For example, the highest amount of POM (5.5 g per kg of soil) was detected in the alluvial soil, which contained significantly less SOM than the black earth. AIso, the coarse-textured soils contained almost the same amount of POM (2 g per kg of soil) as the light loam substantially richer in SOM and the silt-clay fraction. Moreover, the POM fraction expressed as the percentage of SOM was lowest (16.3%) in the black earth (richest in SOM) and highest (26.0%) in the loess soi!. More interestingly, the two coarse-textured soils (light loamy sands) with low contents of SOM had also almost as high percentages (24-25%) of the POM fraction in their SOM as the loess soi!. Microbial biomass expressed as a percentage of biomass C in the total amount of soil organic C content was highest in the black earth and lowest in the light loamy sand and it comprised 2.4-3.2% of the total amount of organic C in all tested soiI types.Item Scientific and practical aspects of legumes symbiosis with root-nodule bacteria(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2012) Martyniuk, StefanItem Survival of rhizobia on seeds, nodulation and growth of soybean as influenced by synthetic and natural seed-applied fungicides(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach) Martyniuk, Stefan; Kozieł, Monika; Gałązka, AnnaItem Wolnożyjące bakterie wiążące azot atmosferyczny z rodzaju Azotobacter – występowanie, liczebność i znaczenie(Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy, 2018) Kozieł, Monika; Gałązka, Anna; Martyniuk, Stefan