Jakość młodych ziemniaków w gospodarce bezobornikowej

It has been estimated the influence of green fertilizers in summer catch crops and straw fertilization on quality of early potatoes. In cultivation after green fertilizer was stated the tendency to decreasing of dry matter content and increasing of starch content in comparison with farmyard manure. Somewhat higher dry matter, starch as well as protein content of early potatoes was stated in cultivation after ploughed down of phacelia, but the vitamin С after field bean. Straw fertilization caused tendency to increasing of protein content and to decreasing of dry matter, starch and the vitamin С content in potato tubers.