Affiliation:
1. Chuvashskiy gosudarstvennyy agrarnyy universitet
2. Chuvash State Agrocultural Academy
Abstract
The purpose of the work is to study the effectiveness of using horny hoofed crumbs from the waste of the meat processing industry as an organic fertilizer, in comparison with mineral nitrogen fertilizers and zeolite-containing trepel in the Chuvash Republic. The direct effect was determined on potatoes and fodder beets, the aftereffect was determined on spring barley. The soil of the experimental plot is light gray forest with a low (2.5 ... 2.6 %) humus content. The application of horn-hoof crumbs to potatoes and fodder beets at a rate of 430 kg/ha, equivalent to N60, together with phosphorus-potassium mineral fertilizers (P60K60), in terms of influence on crop yields, was not inferior to the effect of a complete mineral fertilizer at a rate of N60P60K60. In the variants with the introduction of horn-hoofed crumbs and phosphorus-potassium fertilizers, both independently and with the addition of zeolite-containing trepel at a rate of 2 t/ha, compared with the use of complete mineral fertilization, on average for 2012–2016. an increase in the biological activity of the soil was noted by 7.1 ... 11.0 %; in potato plantings, the leaf surface area increased by 7.0 ... 15.1 thousand m2/ha, the dry matter content in tubers - by 1.4 ... 2.5 %, their marketability - by 0.4 ... 0.7 %, the nitrate content decreased by 1.14 ... 1.45 %. In the crops of fodder beets, the leaf surface area of plants increased by 3.3 ... 5.0 thousand m2/ha, the dry matter content - by 0.8 ... 2.8 %, the concentration of nitrates - decreased by 43.9 ... 40.3 %. The coefficient of energy efficiency of the combined use of horn-hoofed crumb and trepel for row crops was at the level of 1.0. The aftereffect from their introduction was noted the next year when growing barley, the coefficient of bioenergy efficiency was 2.0 ... 2.2
Publisher
Infra-M Academic Publishing House
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