Turilo S. The influence of fertilizing systems and cultivation of solonetz complex soil of Black and Azov valley on rice productivity

The object of researches is Processes of forming of productivity of rice on the concrete types of solonetz complex soil of Black and Azov valley under act of technological operations. The purpose of researches is the ground and development of agronomical receptions of sowing till of soil and doses of mineral fertilizers for perfection of technology of growing of rice on the south of Ukraine. Methods of researches - the field; laboratory; statistical; computation-comparative. Results of researches - For a theory: Common influence of methods of sowing till and doses of nitric fertilizers on productivity of rice on soils of the solonetz complex soil of Black and Azov valley is first studied. On the basis of the conducted researches the mechanism of influencing of predecessors on the system of sowing till of soil and dose of nitric fertilizers is first set, on solonetz of meadows in the system of rice crop rotation with a short rotary press without conducting of the zyablevoy ploughing (zero basic till). For practice: The first got results of interconnection of biological productivity, gumus state, till of soil and doses of nitric fertilizers on a layer and rotation of layer of alfalfa on meadow solonetz, that allows considerably to shorten a quantity and set of instruments for till of soil and dose of nitric fertilizers without the substantial decline of productivity of rice. The sphere of the use is the agricultural enterprises of south region of Ukraine.