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Effect of nitrogen fertilization on the botanical composition of newly established extensive turf type grassland

机译：氮肥对新建立广泛的草坪草原植物组成的影响

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The effects of type and rate of nitrogen fertilizer application on botanical composition were studied in two types of newly established, extensive turf type grassland sown with a grass mixture (40% Festuca rubra, 30% Lolium perenne and 30% Poa pratensis) or a grass-legume mixture (95%o grasses and 5%) legumes). The trials were carried out in three different climatic regions of the Czech Republic (Rousinov, Vatin and Zubfi). Fertilization treatments consisted of (i) three forms of nitrogen fertilizer:soluble, stabilized (with nitrification inhibitor) and slow release nitrogen and unfertilized variant and (ii) two application rates: 50 and 100 kg ha~(-1) year~(-1). The swards were mown in a five cut regime. The total change in stand composition and internal changes of the four main component species (F. rubra, L. perenne, P. pratensis and Trifolium repens) are presented to show the early stages of turf development.
机译：研究了氮肥施用对植物组合物的影响，以两种类型的新建立，广泛的草坪型草原进行了草混合物（40％Festuca Rubra，30％Lolium Perenne和30％Poa Proatensis）或草 - 细微混合物（95％o草和5％）豆类）。试验是在捷克共和国（Rousinov，Vatin和Zubfi）的三个不同气候区域进行的。施肥治疗由（i）三种形式的氮肥：可溶，稳定（含硝化抑制剂）和缓释氮和未受精变体和（ii）的两种申请率：50和100kg ha〜（-1）年〜（ - 1）。草地在五个裁剪制度中被割。提出了四种主要成分物种（F. Rubra，L. Perenne，P.Pratensis和Trifolium Repens的四种主要成分物种的内部变化的总变化，以显示草皮发育的早期阶段。

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