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A static field experiment carried out on lignite discard, manure and mineral fertilisers in the years 1994 to 1998 was used to study effects on yield and sonie soil chemical properties of the applied variants of organic and mineral fertilisation: NPK; manure 30 t/ha + NPK; lignite discard 90 t/ha; lignite discard 90 t/ha + NPK. The present results show that lignite discard contributed to an increase...
The paper presents results on the influence of four-year simplified tillage and direct sowing in the 4-year long crop rotation on some soil structure and water stability indices. The results obtained indicate a significant influence of tillage and direct sowing on the soil structure. The experiment showed that compared with traditional tillage and direct sowing, overall soil clodiness was improved...
In the field experiment, the influence of a long-term cereal crop rotation (100% cereals) on the light soil properties and yield of the test plant (winter rye) was investigated. Winter rye cultivation in the cereal crop rotation for more than 25 years caused a relatively unimportant changes of the physical and chemical soil properties. An increase of soil density, decrease of organic carbon and nitrogen...
Badania przeprowadzono w Rolniczym Zakładzie Doświadczalnym w Swojcu. Doświadczenie na glebie kompleksu żytniego słabego rozpoczęto w 1971 r. a pszennego dobrego w 1983 r. Porównywano zmianowania specjalistyczne zbożowe i okopowo-zbożowe. Oznaczenia wybranych składników chemicznych gleby wykonano w 1989 roku. Stwierdzono, iż na glebie lekkiej w zmianowaniach okopowo-zbożowych dwu- i trójpolowych poziom...
W trzeciej rotacji płodozmianów 5-polowych z narastającym udziałem odmian ziemniaka od 20% (kontrolny) do 40 i 60% odmiany Sowa nieodporna na mątwika i Tarpan odporna reagowały w różnym stopniu wzrostem części nadziemnych oraz plonem i dorodnością bulw. U odmiany Sowa nastąpiły dalsze zniżki plonu, szczególnie duże w płodozmianie z najwyższym udziałem ziemniaka. Główną ich przyczyną była nadal rosnąca...
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