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Paper

Written Paper

From:
De Gruyter Open

During exclusion of the land from market production for two vegetation seasons the highest energy outlays were incurred for maintaining the black fallow and the lowest for the herbicide fallow.In winter wheat production technique the highest energy outlays (15 800 MJ ha<sup>-1</sup>) were incurred in materials. In the group of outlays for materials, 66.4% were fertilizers, 31.4% the sowing mat ...

SUBJECT: pszenica ozima; fallow land; wskaźnik efektywności energetycznej; ugór; winter wheat

POSTED TO: Polish Journal of Natural Science [1643-9953]

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Paper

Written Paper

From:
De Gruyter Open

The milk yield of 24 934 cows from herds monitored by the National Animal Breeding Center, Branch in Olsztyn, was analyzed. The data were collected in the years 1997-2006. The cows were divided into three groups, based on herd size: group I of up to 20 cows, group II of 21-50 cows and group III of more than 50 cows. Additional criteria for the above division were the number of successive 305-d ...

SUBJECT: cows; milk composition; wielkość stada; milk yield; inter-calving interval

POSTED TO: Polish Journal of Natural Science [1643-9953]

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Paper

Written Paper

From:
De Gruyter Open

Hatchery Waste and Hatchability of Turkey Eggs

Mróz, Emilia et al. [2010-6-1]

The objective of this study was to determine the type and quantity of hatchery waste and egg hatchability during the first laying season of heavy-type turkey hens.The hatchability of 4536 eggs as well as the weight, type and quantity of waste material produced during nine control incubation cycles were monitored in turkey hens aged from 33 to 57 weeks, at three-week intervals. The day of embry ...

SUBJECT: embryo mortality; indyki; wylęgowość; śmiertelność zarodków; turkeys

POSTED TO: Polish Journal of Natural Science [1643-9953]

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Paper

Written Paper

From:
De Gruyter Open

A field experiments were carried out in 2005-2007 at the Experimental Station of the University of Warmia and Mazury in Olsztyn. The experiments were set up in a split-plot design, in four replications. Plants were grown in typical black earth soil of quality class IIIb, cereal-fodder strong complex. The first experimental factor was the cultivation method. In the first year of the study, shal ...

SUBJECT: cultivar; cultivation method; macronutrients; shallot

POSTED TO: Vegetable Crops Research Bulletin [1898-7761]

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Paper

Written Paper

From:
De Gruyter Open

Lake Mamry Północne, a part of the Great Masurian Lake System in northeastern Poland, is a valuable body of water from environmental, recreational, and economic points of view. The paper evaluates long-term physical, chemical, and biological parameters as well as commercial fisheries data. Nitrogen and phosphorus influx data as well as physical and chemical data indicate that the trophic state ...

SUBJECT: commercial fisheries; eutrophication; chemical and biological data; physical

POSTED TO: Archives of Polish Fisheries [1230-6428]

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Paper

Written Paper

From:
De Gruyter Open

Aquaporins (AQPs) or water channels are some of the most ubiquitous integral membrane proteins, and are present in all living organisms. Their presence in the lipid bilayer of cell membranes considerably increases their permeability to water and, in some cases, to other small solutes. All AQPs, identified thus far, share the same structure, comprising of six transmembrane segments and two cons ...

SUBJECT: water channel; cell membrane; aquaporin; water; invertebrates

POSTED TO: Advances in Cell Biology [2080-2218]

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Paper

Written Paper

From:
De Gruyter Open

The paper presents the results of carbon stock estimation in forest ecosystems on example of young Scotch pine stands. The tree biomass was measured on the sites and calculated by compartment (roots, stem, branches, and foliages) from the measured data using allometric functions. Amount of biomass for under storey vegetation and litter production were estimated using measured data. The amount ...

SUBJECT: biomass; allocation; scots pine; carbon stock; biomasa

POSTED TO: Lesnícky casopis - Forestry Journal [0323-1046]

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Paper

Written Paper

From:
De Gruyter Open

The aim of the research was comparison of increase of the above-ground parts of biomass of spring wheat and weeds, depending on sowing density. Three varieties of spring wheat: Nawra, Zadra, Korynta and two sowing norms: 500 and 800 grains m<sup>-2</sup> were the experimental factors. During vegetation of wheat, in the 3-4 leaves phase (BBCH-1 3-4), tillering phase (BBCH-21-22), shooting phase ...

SUBJECT: gęstość siewu; pszenica jara; chwasty; sowing density; productivity

POSTED TO: Annales UMCS, Agricultura [0365-1118]

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Paper

Written Paper

From:
De Gruyter Open

The studies were conducted in three apple orchards in the Lublin province in the years 1999-2001. Their purpose was to establish the flight dynamics of three species of leaf tortricids (Spilonota ocellana, Pandemis cerasana, Archips podana) on the basis of the catch to pheromone traps. The flight of S. oceallana males was extended in time and it lasted from 6 to 9 weeks. P. cerasana mostly occ ...

SUBJECT: pheromone traps; flight dynamic; sady jabłoniowe; leaf rollers; apple orchards

POSTED TO: Annales UMCS, Horticultura [1233-2127]

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Paper

Written Paper

From:
De Gruyter Open

The purpose of the three years of studies was to establish the population structure of selected species of leaf tortricids in particular types of apple orchards on the basis of the catch into pheromone traps. Four out of the five studied species of leaf tortricids were caught in the orchard without any chemical protection. Those were: Spilonota ocellana, Adoxophyes orana, Pandemis cerasana and ...

SUBJECT: structure of number; pheromone traps; sady jabłoniowe; leaf rollers; apple orchards

POSTED TO: Annales UMCS, Horticultura [1233-2127]

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