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A link in the rotation: rye as a winter catch crop followed by potatoes under different edaphic conditions. Part III. The effects of the rotation depending on dates of harvesting the catch crop, rates of nitrogen fertilizer and potato varieties


, : A link in the rotation: rye as a winter catch crop followed by potatoes under different edaphic conditions. Part III. The effects of the rotation depending on dates of harvesting the catch crop, rates of nitrogen fertilizer and potato varieties. Annales Universitatis Mariae Curie Sklodowska, E1978; 32/33: 61-72

In trials on sandy soil, loess and rendzina in 1973-6, 3 potato were grown after a winter catch crop of rye given 3 rates of N and harvested at 3 growth stages. The effects of the treatments on total DM, CP and oat unit yields from the rotation are shown. The opt. system for high DM yields and feed quality was harvesting rye at the beginning of heading and applying a total of 180 kg N/ha to the 2 crops.

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