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Soil Morphology, Formation and Classification

• Characteristic of Collembola communities occurring in meadows on variously degraded hydrogenous soil.

  Zeszyty Problemowe Postepów Nauk Rolniczych

• Influence of exposure and slope on grassland yields under mountain conditions.

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• Contents of various nitrogen and phosphorus forms in soils irrigated with potato starch waste water.

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• Content of total and DTPA-extractable microelements in selected alluvial soils of Fordon Vistula Valley and Unisław Basin.

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• Illite - smectite mixed layer minerals in soils formed from glacial till at Gliszcz Agricultural Experimental Station.

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• Studies on leaching of ammonium nitrogen from soils.

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• Mineralogical composition of clay fraction in luvic and argillic horizons of selected lessive soils in Dobrzyn´ district.

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• Influence of plants and land left fallow on the seasonal population dynamics of Meloidogyne hapla.

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• Ammonium and nitrate contents in soil solutions of arable and forest soils.

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• Effects of meliorative plowing, high rates of fertilizers, and overhead irrigation on yields of potato and carrot in sandy soils.

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• Application of the tensiometer method to determining soil moisture under sugar beet.

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• The role of the habitat in forming communities of soil nematodes.

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• Effect of some factors on compaction in the top layer of arable soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Investigations on spring cultivations for early-sown crops.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of different methods of spring cultivation on yields of some early- and late-sown spring crops.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Traditional and ameliorating method of subsoil loosening in the rotation.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Investigations on the principles of combining deep and shallow plowing in the rotation. I. Effect of the different depths of plow furrows on crop yields.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effects of different kinds of deep plowing on heavy and light soils.

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• Distribution of available magnesium In the proSIes of some soil types in the Wroclaw voivodship.

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• The magnesium content of Polish soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Investigations on the magnesium content in soils of the Zielona Gora voivodship. I. Available-magnesium content of the most Important soil types in the Zielona Gora voivodship.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of grazing on vegetal cover and physical properties of meadow soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Pasture vegetation on saline soils in the Leczyca district.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Investigations on the magnesium content in soils of the Zielona Gora voivodship. II. Available-magnesium content of soils in the Chotkow community.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Movement of water in the arable layer of two soil types at different moisture levels. I. Rate of deep percolation in the arable layer.

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• Textural and structural changes in arable soil after autumn plowing, due to the effects of frost and liming.

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• Contents of plant-available sulphur and molybdenum in light brown-earths of the Olsztyn voivodship.

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• The effect of atrazine on soil bacteria in relation to the substrate.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Land classification on light soils in Poland.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Trial on the possibilities of altering some properties of a sandy soil by means of transforming its profile.

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• Effect of deep amelioration on levels and distribution of organic matter and some chemical properties In a sandy soil.

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• Deep placement of layers of dung in a sandy soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Dynamics of organic carbon and amino acids in the soil profile altered by meliorative plowing.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Some microbiological effects in a trial on the amelioration of a sandy soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of deep plowing and deep placement of dung on the total amounts and distribution of roots and undecom-posed plant-residues in a sandy soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect on maize of magnesium fertilizing and liming on a light add soil.

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• Effect on crop yields of loam and peat applied to light soils.

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• Studies on the organic manuring of sandy soils.

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• Interactions between mineral fertilizers and water on crop yields.

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• Effect of heavy fertilizing and overhead irrigation on the productivity of different rotations on sandy soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Occurrence of mineral nutrients in relation to the nature of the soil profile.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of different methods of deepening the arable layer on increases in humic matter in the profile of a light alluvial soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of fertilizing and manuring on humic compounds in a sandy soil.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Dynamics of organic carbon and of some nitrogen forms in dif- ferently utilized sandy soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Dependence of some physical properties of light soils on their mechanical composition.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of ameliorative plowing and deep placement of organic manure on the moisture dynamics of sandy soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effects of different methods of deepening the winter furrow on the moisture dynamics of a light soil under rotation.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Effect of micro- and macro-elements on plants.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• Some results of investigations on the role of water-soluble P₂O₅ in complex fertilizers.

  Zeszyty Problemowe Postepow Nauk Rolniczych

• The influence of irrigation upon the uptake of nutrients and utilization of fertilizers by plants cultivated on light soils.

  Zeszyty Problemowe Postepow Nauk Rolniczych

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