Full TGIF Record # 3603
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Author(s):Tomka, A.; Ligan, E.; Jilak, M.; Tomasik, J.
Author Affiliation:Vyskummy Ustav Luk a Pasienkov, Banska Bystrica, Czechoslovakia
Title:Botanical changes in natural grass stands given prolonged fertilization with heavy nitrogen doses
Source:International Grassland Congress, Proceedings. Vol. Part 2, 1974, p. 574-578.
Publishing Information:Zurich, Etc., V. P.
Keywords:TIC Keywords: Nardus stricta; Poa; Nitrogen fertilizers; Seeding; Soil pH; Festuca pratensis; Alopecurus; Phleum pratense; Festuca rubra subsp. rubra; Poa pratensis; Lotus corniculatus; Trifolium repens; Weed control; Fertilization; Trisetum flavescens; Alopecurus pratensis
Abstract/Contents:In trials begun in 1961 a degraded grassland deominated by Nardus stricta was given 50 or 200 kg N/ha. Some of the plots were ploughed and resown with meadow fescue/timothy/Festuca rubra/Poa pratensis/birdsfoot trefoil/white clover and given 50 kg N in the first year and 200 kg N/ha in subsequent years. In degraded stands on soil with pH 3.9, N had no effect on the proportion of N. stricta and F. rubra in the sward. After resowing, the sown species (especially timothy) increased. However, in subsequent years N. stricta again increased, even with high N. In stands on soil with pH 4.7, F. rubra and P. pratensis increased markedly with annual application of 50 kg N/ha. After resowing, the legumes and meadow fescue became widespread at first, but poorer species increased in subsequent years. On soil with pH 5.2, F. rubra and timothy were increased by N and at some sites Trisetum flavescens increased. In cultivated stands with subsoil water, legumes were reduced and grasses increased by 200 kg N/ha, the main increase being in Alopecurus pratensis.
Note:Lang: Russian
Geographic Terms:Czechoslovakia
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tomka, A., E. Ligan, M. Jilak, and J. Tomasik. 1974. Botanical changes in natural grass stands given prolonged fertilization with heavy nitrogen doses. Int. Grassland Congress Proc. Part 2:p. 574-578.
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