机译:净化污水的自然方法及其在农业管理中的应用(Yestestvennyye metody Ochistki stochnykh Vod I Ikh Ispol'zonvaniye v sel'skom Khozyaystve(sbornik Nauchnykh Trudov))。
Sewage; Fertilizers; Agriculture; Waste water; Irrigation systems; Soils; Yield; Grasses; Feeding; Animals; Reports; Ussr; Translations;