Lopushnyak V. Agrochemical and agroecological principles of crops fertilization in Western forest steppe of Ukraine

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0514U000085

Applicant for

Specialization

  • 06.01.04 - Агрохімія

30-01-2014

Specialized Academic Board

Д 64.354.01

National Scientific Center «Institute for Soil Science and Agrochemistry Research named after O. N. Sokolovsky»

Essay

Object - processes, properties and indexes, that characterize the nourishing mode of soil, system of fertilizer of cultures of the field grain-row crop rotation, productivity of cultures, productivity of crop rotation. Purpose - to ground in agrochemical and agroecological aspects scientific bases of the rational systems of fertilizer in the field crop rotations for the increase of the productivity and fertility of dark-gray podzolic soil of Western Forest-steppe of Ukraine. Methods - the field, chemical, microbiological, calculation, mathematical statistics. Theoretical results - theoretically grounded ways of decision the problem of the extended recreation of fertility of podzolic soils in the conditions of the intensive anthropogenic loading with a simultaneous improvement their agrochemical properties, decline of biotoxic contamination and soils of fatigue, receipt of biologically valuable harvest and environmental preservation; conformities to law of transformation of their humus state and energy capacities of humus are set at the different systems of fertilizer; the theoretical aspects of the rational systems are generalized fertilizers that provide forming of optimal agroecological parameters of soils (trophic, sanitary, structurally aggregate). Practical results - worked out to recommendation in relation to the estimation of the state of the nourishing mode and possibility of effective management of soil fertility, prognostications of his dynamics under act of the different systems fertilizers that is used in the project of Priority directions of activity of Department of agriculture of Ministry of agrarian politics and food of Ukraine and at development of practical steps in realization of Initiative the "Ridne selo" down on 2013 - 2014, Ukr SRI of the productivity of agroindustrial complex for the ground of normative production of agricultural cultures and realization of monitoring of level of the productivity of agrarian production cost taking into account charges on the extended reproduction of effective fertility of soils. The optimal parameters of maintenance of basic elements of feed are worked out in podzolic soils, norms of satiation of the field crop rotations by organic fertilizers, the way of the rational use of uncommodity part of harvest for a fertilizer it is offered to use by the regional branches of Reigning establish "Derzhgruntohorona" at development of ecological and agrochemical passport of the field, planning of new and perfection of the existent systems of fertilizer of cultures in the field crop rotations with the purpose of minimization of the anthropogenic loading on an environment, increase of agrochemical, economic and biopower efficiency of application of fertilizers. Novelty - first solved problem setting of norms of doses and correlation of organic and mineral fertilizers on podzolic soils on the basis of results of complex soil-agrochemical and agroecological researches, indexes of the productivity, power and economic estimations. Conformities to law of positive influence of organic mineral are set and organic systems of fertilizer on common agrochemical, agrophysics, agroecological and the phytosanitary state of darkly-grey podzolic soil, on character of transformation in him organic substances, dynamics of maintenance of humus and his quality state, structure of soil microbiocenosis and biological activity of investigational soil. It is set that application of manure, straw and ciderate in combination with the rationed amount of mineral fertilizers, unlike the especially mineral system of fertilizer, does not result in development of degradation processes in soil, namely to growth of soil exhaustion, acidifying of soil environment, destruction agronomical of valuable soil aggregates, increase of closeness of structure of soil, worsening of his porosity, water-air mode and others like that, and allows to attain the extended reproduction of fertility of darkly-grey podzolic soil for twelve years intensive agricultural. It is well-proven that the rational organic mineral system of fertilizer optimizes the biological rotation of substances and energy in an agrocenosis, diminishes the size of his torn and intensifies the chain processes of anabolism - nekrobolizm - catabolism in agroecosystems. Degree of application - the substantive provisions of theoretical and experimental researches are use during for planning of the systems the fertilizer of the field cultures in crop rotations, and also in planning of flow sheets of their growing in economies Lviv, Ternopil, Ivano-Frankivsk and Volhynia areas by a general area over 12,6 thousand and, and also in the educational-educator process of higher educational establishments of III - IV of level of accreditation, that it is validified by the corresponding acts of introduction. The results of these researches found a reflection in train aids "Agrochemical maintenance of the agricultural forming" and "Agrochemistry". The field is agriculture.

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