Effect of mineral fertilizing, growth regulators and nitragine on botanical composition of the sward of a grass-legume mixture
1999
Nanova, M. (Institut po Furazhite, Pleven (Bulgaria))
It was found that the phosphorus-potassoum fertilizing made with increasing rates increased weight participation of lucerne, as compared to the unfertilized sward, up to 17.2%. Application time of the nitrogen fertilizer exerted no substantial influence on the sward botanical compozition. The nitrogen fertilizing made with increasing rates in spring decreased the lucerne participation, as compaerd to the P24K24 fertilizing down to 6.5% and in autumn-down to 9.8%. The molybdenum microfertilizing increased the lucerne participation, as compared to the P24K24 fertilizing, by 5.6%, the nitrogen - by 4.3% and the seed encapsulation decreased it by 8.4%. The nitrogen fertilizing with rates up to 32 kg/da for herbaceous mixtures with high legume content (up to 70%) exerted no negative influence on the chemical composition of dry matter.
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