Wpływ następczy międzyplonów na plonowanie pszenżyta ozimego
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The paper presents the results of researches carried out over 2001–2005 which aimed at describing the sequent impact of undersown crops which were plowed down in autumn, stubble catch crops plowed down in autumn and left in the form of mulch till spring on yielding of winter triticale. The following combinations of intercrops were taken into account: control object (without intercrop), undersown crop – biomass plowed down in autumn (red clever, red clover + Italian ryegrass, Italian ryegrass), stubble catch crop – biomass plowed down in autumn (white mustard), stubble catch crop – biomass left in the form of mulch till spring (white mustard). Undersown crops were sown into spring barley which was cultivated on grain, and stubble catch crops were sown after its harvest. In the first year after catch crops applying the table potatoes were cultivated, in the second year winter triticale was cultivated. The results pointed that, catch crops with exception of red clover inserted into the soil the similar number of biomass. The highest number of nitrogen and phosphorus was supplied by red clover and by the mixtures of red clover with Italian ryegrass, the highest number of potassium was supplied by white mustard, the highest number of calcium was supplied by red clover, the mixtures of red clover with Italian ryegrass and white mustard, the highest number of magnesium was supplied by red clover. The conditions of the growing season significantly modified the yield of winter triticale. The highest grain yield and total protein from grain were achieved from the object where under the forecrop of winter triticale the mixtures of red clover with Italian ryegrass and Italian ryegrass were plowed down.
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