| [effect of fertilizers on the number of bacteria involved in the turnover of nitrogen in pond water of the astrakhan region]. | the type of intensification affects the distribution of bacteria involved in turnover of nitrogen in pond water. green fertilizers (reed) stimulate the number of nitrogen-fixing bacteria, and the number and activity of nitrifying bacteria, to a higher degree than nitrogen and phosphorus fertilizers. reed is recommended as the main means for intensification of spawning ponds of the astrakhan region. | 1976 | 137355 |