In 2000-2002 an effect of the natural fertilizers on the floral composition as well as on the meadow sward yield was examined. It was found that the meadow fertilization with natural fertilizers is appropriate, because under the relatively low costs distinct incereases of the dry matter yield — 21%, total protein — 25% and water soluble saccharides - 16% can be obtain. Almost 50% lower yield of the fertilization components of the manure and liquid manure when compared with the mineral fertilizers, expressed in the growth of the hay yield and total protein, was recompensed with the richer botanical composition of the meadow sward, especially with the presence of the white clover.
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