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The study involved three strawberry cultivars: 'Senga Sengana', 'Kent' and 'El- santa', planted in the spring of 2003 in a row system in the Pomological Orchard of RIPF in Skierniewice, Poland. The experiment was carried out in 2006 on 4-year-old plants as a continuation of the project Cost 631. The strawberry plants were mulched with a peat substrate, or sawdust, or pine bark, or compost or rye straw, and inocu­lated with a mycorrhizal preparation Mycosat. The mulches were replenished every year in the same amount during the flowering of the plants. The results of the experi­ments indicate that the combinations used did not, in general, cause a significant change in the yielding of plants during the experimental period presented. An excep­tion were the plants of the cultivar 'Kent' mulched with straw, which produced a significantly lower yield, by 18.4% on average, in comparison with the control plants or those mulched with bark. Plants of the cultivar 'Elsanta' mulched with com­post or sawdust were characterized by a significantly greater mean fruit weight (by an average of 1.5 g) compared with the control. On the whole, the use of the mulches and the mycorrhizal product contributed to an increase in the number of fruits of the class 'Ekstra'. Significant differences were found on the plots of 'Senga Sengana' mulched with straw or inoculated with the mycorrhizal substrate, from which, on the average, 71% more class 'Ekstra' berries were collected than from the control plants (non- mulched). The experiments confirmed the cultivar-specific differences in yield be­tween the strawberry cultivars studied. At comparable yields, they differed signifi­cantly in terms of the number and mean weight of the fruits collected.
The influence of organic fertilization as a summer catch crop ploughed as a whole plants or post harvest residues and manuring rye straw on yielding and dry matter and vitamin C content in white cabbage. The highest cabbage crops were obtained when tansy phacelia was ploughed under. Crops of cabbage were higher when the whole catch crop biomass was ploughed under than when the post harvest residues were ploughed under. Among the doses of rye straw used, the best crop-generating effect was displayed by straw dosed at 4 t·ha⁻¹. There wasn’t found any decrease of the dry matter or vitamin C content under the influence of the tested kinds of the organic fertilization.
Mushrooms are cultivated on a wide range of materials of organic origin. Textile industry wastes seem to be interesting in this regard. In experiment, mycelium growth of the following eight mushroom species: Pholiota nameko (Ito) Ito et Imai, Flammulina velutipes (Curt. ex Fr.) Sing., Lyophyllum ulmarium (Bull. ex Fr.) Kumm., Marasmius oreades (Bolt.: Fr.) Fr., Hericium erinaceus (Bull: Fr.) Pers., Agrocybe aegerita (Brig.) Sing., Lentinula edodes (Berk.) Pegl. and Ganoderma lucidum (Curt: Fr.) Karst. cultivated on alder sawdust, rye straw, hemp and flax shive substrates was investigated. Significant variability in mycelium growth was observed depending on the mushroom species and the type of the applied substrate. The best mycelium growth of the examined mushroom species was recorded on flax shive and alder sawdust. In the majority of the experimental mushroom species, the worst growth of mycelia was recorded on the hemp shive substrate.
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