Prokopchuk S. Optimization of mineral nutrition of chickpea on podzolic chernozem in Right-Bank Forest-Steppe of Ukraine

Object - relationship between the nutrient regime of the soil, doses and timing application of mineral fertilizers, liming, of seeds by treatment bacterial preparation with the regime of mineral nutrition of plants chickpea. Purpose - to improve the system of fertilizer chickpea due to optimization of doses and timing application of mineral fertilizers and bacterial preparation to obtain stable harvests high-quality grain on chernozem podzolized Right Bank Forest-Steppe of Ukraine. Methods - fields, analytical, laboratory-field, mathematically-statistical and for settlement-comparative methods of research on the effectiveness application of mineral fertilizers and bacterial preparation. The research results are processed by methods variational, of correlation and dispersion analysis. Theoretical results - developed the theoretical approaches to addressing of optimization of process of mineral nutrition of plants chickpea, based on the an integrated approach to assessing the of plant response to of the soil of nutrient regime change under the action fertilizers macro and micro, liming application of a preparation symbiotic nitrogen fixing bacteria. The coefficient of utilization of nitrogen from fertilizers and biological nitrogen fixation, depending on the conditions of mineral nutrition and inoculation are determined. Practical results - scientifically substantiated and developed a system of application of mineral of fertilizers and bacterial preparation for sowing of chickpea which makes it possible to significantly increase and stabilize the productivity of grain. To identify the costs of nutrients on the formation of units of seed yield chickpea. Determined the optimal dose of fertilizer for growing chickpeas with preplant treatment of seeds by bacterial preparation Rizobofit. Novelty - for the first time podzolic chernozem Right Bank Forest-Steppe of Ukraine developed a system of fertilizer chickpea, that it comprises fertilising a dose P60K60 the basic processing soil and N30 under presowing cultivation, liming holding soil ph <5.5, sowing treatment of seeds with ammonium molybdate and preparation of nitrogen-fixing root nodule bacteria vnekornevuyu top dressing plants in beans formation phase 20% solution of carbamide at a dose of 30 kg/ha e. g. Specific features assimilation of major nutrients by plants chickpea specified quantitative and relative indicators of their issuance harvest depending on liming of doses entering mineral fertilizers and the application of a bacterial preparation. Of sensible economic and energy efficiency of the use of mineral fertilizers and bacterial preparation Rizobofit under chickpeas. Degree of application - basic results of the thesis introduced in 2014 on an area of 25 ha in CHAO NPF "Harvest" village. Katerinopol and on the area of 37 ha in the agricultural company LLC "League" Uman District of Cherkasy region. According to the materials research received a patent for utility model number "A method for optimizing symbiotic nitrogen-fixing abilities chickpea, on chernozem podzolized Right Bank Forest-Steppe of Ukraine". The field is agriculture.