Abstract. The article contains the results of scientific research on the possibility of using solid processing products of bird droppings in the biogas plant of OOO "NPO "Agrobiogaz", St. Petersburg (hereinafter -solid biofertilizer or TBU) in the substrate composition when growing onions in protected soil conditions. The chemical composition of biofertilizer has been studied: 1 ton of natural substance contains, an average, 16.5 kilogram per ton of total nitrogen, 20 kilogram per ton of total phosphorus, and about 16 kilogram per ton of total potassium, as well as microelements. TBU -biofertilizer -a product, that positively influences in mixtures with a mineral substrate on soil fertility in conditions of protected soil. The profitability of onions production is maximum in variants with the use of biofertilizers -254-260%, which is 60-65% higher than other options, and the production cost of 1 kilogram is the minimum -12.7-20 rubles per kilogram.
Сведения об авторах:Васильев Олег Александрович -доктор биологических наук, профессор кафедры землеустрой-ства, кадастров и экологии, e-mail: vasiloleg@mail.ru. Кирьянов Дмитрий Петрович -кандидат сельскохозяйственных наук, доцент кафедры земледе-лия, растениеводства, селекции и семеноводства ФГБОУ ВО «Чувашская государственная сельскохозяйственная академия», г. Чебоксары, Россия. CHEMICAL COMPOSITION OF SOLID FACTION OF BIOGAS PLANT PRODUCTSOF LLC "NPO "AGROBIOGAS" Vasilev O.A., Kiryanov D.P. Abstract. The article describes the results of scientific research on the study of chemical composition of solid products of poultry manure processing in a biogas plant LLC "NPO "Agrobiogaz", St. Petersburg. Biofertilizer has the structure of semi-decomposed peat, it disperses well, has a faint smell of manure. 1 ton of natural substance contains, an average, 16.5 kilogram per ton of total nitrogen, 20 kilogram per ton of total phosphorus, and about 16 kilogram per ton of total potassium, as well as microelements. The content of heavy metals within the requirements; there are no traces of pesticides.
Реферат. В лесостепном агроландшафте Чувашской Республики на среднесмытой и типично-серой лесной тяжелосуглинистой пылевато-иловатой почве, по сравнению с несмытой ее разно-стью, под всеми культурами зерно-травяного севооборота в пахотном и подпахотном слоях наблюдаются неблагоприятные условия водного режимов, что снижает ее потенциальное и эф-фективное плодородие и урожайность культур.Ключевые слова: технология обработки почвы, вспашка, рыхление, чизелевание, нулевая, запасы влаги, водопоглощение почвой, транспирация и внутрипочвенный сток.
The current paper has presented experimental data on the growth, development, productivity and grain quality of spring durum and bread wheat after use of bio products Bloom & Grow and Immune System on light-gray forest soils of the north of the Chuvash Republic. The trials on the durum wheat cultivation in the conditions of the Chuvash Republic were carried out for the first time. The results of two-year study have showed that the plants treated with bio products had a 7–8 days’ shorter vegetation period. At the same time, the height of the treated bread wheat plants significantly has exceeded the control variant on 12.5 cm; the main head was on 0.4 cm longer, the number of grains in it was 6.1 pieces more, and the grain weight was larger on 0.23 grams. The height of the spring durum wheat plants treated with micronutrients has exceeded the control variant on 25.1 cm, and the length of the main head, the number of grains in it and the grain weight have significantly exceeded the indices of the control variant. 1000-grain weight has exceeded the value of the control variant on 7.28 grams. It has been established that the productivity increase of spring bread wheat was 0.89 t/ha (26.3%) and that of durum wheat was 0.93 t/ha (28.6%) compared with the control variant. The use of bio products Bloom & Grow and Immune System has resulted in an increase of gluten content in spring bread and durum wheat, and in an improvement of the gluten deformation rate to group 1 with the accumulation of minerals. The current study conducted in the vegetation period of 2018–2019 has showed that the bio products Bloom & Grow and Immune System are effective, and combine the properties of a growth stimulator and an immune modulator.
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