Martynenko T. Agromeliorative efficiency of phosphogypsum and fertilizers under drip irrigation of onions in Southern Ukraine

Object of researches - processes of changes of chemical, physical and physical and chemical indexes of fertility of livery soil at tiny irrigation and application of mineral fertilizers and phosphogypsum. The purpose of researches is establishment of agromeliorative efficiency of different methods of bringing of phosphogypsum, doses of mineral fertilizers and influencing of them on the chemical, physical and physical and chemical indexes of fertility of livery soils. Methods of researches - the field, laboratory, computation-comparative, statistical. Results of researches - For a theory: First in the conditions of south of Ukraine efficiency of different methods of application of phosphogypsum and computation dose of fertilizers under the bow of turnip is explored, their influence on chemical, physical and physical and chemical properties of livery soils. For practice: Scientific-grounded and the method of chemical land-reclamation of livery is offered to production the soils on the basis of the rational use of phosphogypsum in the conditions of tiny irrigation by waters of tourist class, that allows to lower intensity of irrigational degradation and promote productivity of bow of turnip without worsening quality of vegetable products and indexes of fertility of soil. The sphere of the use is the agricultural enterprises of south of Ukraine.