Introduction of anhydrous ammonia. Entering of ammonia into the earth. Introduction of liquid ammoniac fertilizers
Introduction of waterless ammonia. Entering of ammonia into the earth. Introduction of liquid ammoniac fertilizers
Ammonia belongs to liquid nitrogen fertilizers and contains 82,2% of nitrogen. Behind appearance - it is colourless liquid which on air violently boils and quickly evaporates. During entering into soil it turns into gas which is quickly dissolved in soil solution and forms hydroxide of ammonium (NH4OH) which ions are absorbed by soil.
Liquid nitrogen fertilizers bring by special cars which provide an immediate bookmark them on depth not less than 10-12 cm on heavy soil and 14-18 cm - on lungs. Superficial introduction of these fertilizers is inadmissible as ammonia quickly evaporates. At less deep bookmark its considerable losses, especially on light sandy and sandy soil are also possible. From damp soil of loss of ammonia it is much less, than from dry.
At introduction of liquid ammoniac fertilizers the ammonium ion (waterless ammonia turns into gas and contacts soil moisture with formation of a hydroxide of ammonium) is obmenno absorbed and therefore poorly moves in soil. In the first days after application of fertilizers soil is alkalinized, and then in process of a nitrification of ammoniac nitrogen its reaction is displaced towards acidulation. At a nitrification of nitrogen of fertilizers its mobility increases in soil. In a zone of introduction of waterless ammonia there is a temporary sterilization of soil, the speed of a nitrification is slowed down.