The study presents the results obtained from the univariate series of laboratory experiments, conducted in 2009-2010. In the experiments, the effect of water constant magnetic field stimulated and unstimulated water on germination and initial growth of seedlings of pea, maize, yellow lupine and cucumbers were studied. The results confirmed the reaction varied seed plant species assessed on the type of water used. Beneficial effects of the use of magnetized water highlighted to boost growth and germination of seed maize and cucumbers. And in the case of the latter species also increases in the dry weight of the aboveground parts of seedlings. For the adverse effect of magnetized water should be considered to reduce the amount of seedlings of pea and yellow lupine and the dry weight of the underground part of the seedling corn. ...
The study was conducted in 2008-2009 at the Agricultural Experimental Station in Lipnik near Stargard, on sandy soil. The aim of this study was to determine the effect of sub-crown irrigation on the yield leaves photosynthesis and transpiration capacity, as well as CO2 concentration in the stomatal cells, and leaf greenness index of early 'Geneva Early' cv. and late 'Rubinola' cv. apple cultivars.Irrigation was applied in the form of the sub-crown system, in which water is distributed through a mini-sprayers of Hadar type when water potential of soil fell below -0.01 MPa. The experiment was established in a randomized sub-block pattern (split-plot) in 10 replicates. The study was conducted using the four-year-old trees. The trees were planted at 4 × 2 m spacing; one hectare was planted with 1250 trees. Turf was maintained between the trees, while herbicide fallow was applied in rows. Plant material for laboratory tests was collected each year in three dates: fruit setting (date 1), harvest (date 2) and one month after the harvest (date 3). Studies have shown that leaves of the irrigated apple trees were lower content of assimilation pigments in leaves than non-irrigated ones. Leaves of late ‘Rubinola' cv. showed higher ...
The laboratory experiment was carried out in 2008-2009. It consisted of several series of measurements, which were designed to evaluate the effect of magnetized water on seeding value and growth of seedlings and the weight of selected plant species. The results confirmed a diverse reaction of assessed species seeds towards the type of water used. Magnetized water stimulated the seed germination of garden savory and rape, while had no effect on the seeds of yellow lupine. In case of the seeds of buckwheat, this parameter decreased under the influence of magnetized water in the first six days of the experiment. A beneficial effect of bio-stimulation with magnetized water on the rate of growth of the aboveground parts of seedlings was recorded. The positive effect related to all species. The greatest stimulation was observed in buckwheat and garden savory. The use of magnetized water reduced the growth rate of roots at garden savory and buckwheat, while it increased the growth of winter rape roots. It had no effect in yellow lupine. The type of water exerted a significant influence on the fresh weight and roots of seedlings. Regardless of the assessed species, the use of magnetized water resulted in a significant ...
The field experiment was carried out in 2004-2006 in Chlebówko localized 20 km from Stargard Szczeciński and 5 km north-east from Stara Dąbrowa commune - 53°27'N and 15°10'E. The area is elevated 62-72 m above mean se level (ASL). The influence of irrigation, tillage system, and NPK mineral nutrition on weed infestation of faba bean variety ‘Titus' with determined development rate, was evaluated. The weed infestation degree in the faba bean plantation depended on moisture conditions, fertilization rates, and tillage system. Irrigation increased the number, fresh weight, and dry matter of weeds, respectively by 92%, 130%, and 138%. Likewise, increasing nutrition elevated values of these parameters by 46%, 80%, and 95%. The tillage simplifications enhanced the weed population, particularly on irrigated and fertilized objects. Irrigation, mineral nutrition, and simplified tillage caused compensation of spring, winter and perennial weed species on plantation of faba bean ‘Titus'. Chenopodium album, Stellaria media, and Polygonum convolvulus predominated on studied plots. ...
Field experiments were done in 2011-2012 in ES Lipnik near Stargard Szczeciński on the sandy soil (good rye complex) and small retencion of usefulness water. The experiment was designe by randomized block method in 4 replications. Among the trees was the lawn but in the rows the selective herbicide was used. The aim of the studies was to determine the effect of under crown irrigation on the chemical composition of leafs plum cv. ‘Amers' and ‘Cacańska Rana'. The experimental design consisted control fields, without irrigation - O and irrigated fields - W. Supplemental irrigation was used when tensiometer have shown that water potential of soil dropped lower than -0,01 MPa. For irrigation the "Hadar" sprinkler were used (r = 2 m). Depending on rainfall the amount of irrigation from 11,8 to 14,0 m3 there used. Studies have shown similar reaction of both plum varieties to the applied water factor. The leaves taken from trees irrigated had tends to reduce the concentration of nitrogen and phosphorus. A similar reaction of both varieties was also found in the case of the concentration of potassium and calcium. In addition, the objects on which there was an increase of zinc content significantly decreased ...
Two field experiments were strict founded in 2004-2006 on a farm in Chlebówek. Locality is 20 km from Stargard and 5 km north-east of the village commune old oak wood - 53027'N and 15010'E. In the experiments, the effect of irrigation, tillage system and fertilization on yield and selected parameters of the physical properties of the soil. We tested two varieties of faba bean: The conducted experiments show that the use of irrigation and increasing doses of mineral fertilizers increases the yield of faba bean seeds of both varieties, traditional - 'Nadwiślański 'and modified -'Titus'. The use of simplifications tillage reduces, to a greater extent, yielding traditional varieties of faba bean. Increased mineral fertilizers under field irrigation increased water consumption, and thus decreased the supply layer to 50 cm. Improving water logging top soils decreased soil bulk density in a variation of 'Nadwiślański' and increased the variety 'Titus'. The use of simplified tillage systems, especially direct sowing, increases the bulk density of the upper layers of the soil. ...
The aim of the study was to determine the effect of drip irrigation on yielding of summer squash ‘White Bush' grown under conditions of two localities: Lipnik near Stargard Szczeciński (soil of quality class IVb, and of good-rye-soil-complex) and Kruszyn Krajeński near Bydgoszcz (soil of quality class V, and of weak-rye-soil-complex). The study was designed as one-factorial trial: drip irrigation as the experimental factor was considered. Drip irrigation was conducted according to soil tensiometer indications (-0.04 MPa). Both, in Lipnik as well as in Kruszyn Krajeński, drip irrigation significantly increased marketable yield of summer squash ‘White Bush'. A higher rise in yields due to irrigation was obtained in Kruszyn Krajeński than in Lipnik. Mean marketable yield of summer squash fruits in Lipnik was higher than that obtained in Kruszyn Krajeński. Drip irrigation significantly increased the single fruit weight in relation to the control, in both crop localities. The system of drip irrigation significantly affected the number of fruits per plant. Summer squash plants grown in Lipnik produced higher number of fruits, than in Kruszyn Krajeński. In addition, essential influence of drip irrigation was affirmed on chemical composition of fruits, i.e. dry matter, vitamin C, monosaccharides, saccharose, content of total sugars ...
