PRODUCTIVITY OF OIL FLAX DEPENDING ON DOSES OF FERTILIZERS AND CORRELATION AND STATISTICAL ANALYSIS OF THE STUDY FACTORS
Abstract
Background. The high purchase price and the expansion of treatment volumes stimulate the production of oilseeds in general, including oilseed flax. However, it has not been enough done to determine the autecological aspects in the agrocenoses of oil flax and the scientific justification for the sustainable production of oilseed raw materials of this crop in conditions of the Central Non-Black Earth Region. Also, the problem of the sowing qualities of flax, the preservation of the crop in various weather conditions of the region has not been solved and such methods of agricultural technology as the use of biological microfertilizers, including complex interaction with mineral fertilizers, have not been worked out, which determines the relevance and necessity of conducting these studies.
Materials and Methods. Research methods and methodology were based on generalization of scientific sources of domestic and foreign authors, laboratory and field studies, phenological observations, records, according to recommendations and generally accepted methods, using correlation and statistical analysis of the experimental data obtained. Microsoft Office Excel 10 was used for statistical work.
Results. The maximum average yields were found in variants with N205P35K75 (24.4 dt/ha); N220P70K105 (25.1 dt/ha) against the background of Micropolidoc Plus application. The increase in oilseeds compared to options with introduction of N125 was without Micropolidoc Plus: +6.8 dt/ha (N205R35K75) and +8.9 dt/ha (N220R70K105), and against the background of using Micropolidoc plus it was +7.9 dt/ha (N205R35K75) and +8.6 dt/ha (N220Р70К105).
Conclusion. The use of higher calculated doses of fertilizers stimulated an increase in yield, and spraying oil flax plants in the “herringbone” phase with Micropolidoc Plus microfertilizer at a dose of 0.5 l/ha, in combination with mineral fertilizers, gave a higher increase in seeds according to the options. Correlation-statistical analysis revealed that the relationship was enhanced when treated with agrochemical Micropolidoc Plus against the background of an average level of nutrition (r = 0.42), and an increase in the number of boxes per unit increased the crop yield by +0.84 dt/ha, which indicated the effectiveness of a biological product that improved conditions for increasing the responsiveness of yields to the formation of boxes.
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