Academic literature on the topic 'Macrofertilizers'

Abstract The study results on using macro- and micronutrients in the cultivation of white lupine (Lupinusalbus L.) in the soil and climatic conditions of the Central Black Earth region of Russia are presented. Field trials were carried out in 2018-2020 at the Department of Plant Growing, Breeding and Vegetable Growing in Belgorod State Agrarian University. The object of research is a high-intensity variety of white lupine Degas. The subject of research is the Aquamix microfertilizer of two brands – Aquamix-T (for seed treatment) and Aquamix-TV (for foliar dressing), macrofertilizers – potassium sulphate (K2SO4) and potassium monophosphate (KH2PO4). The weather conditions during the years of the experiments were unfavorable for the growth and development of lupine, since during the entire growing season of the plants an increased temperature regime was observed with a deficit of precipitation. The soil cover of the experimental field is represented by typical chernozem with an average content of basic nutrients. The accounting area of the plot is 18 m2, the replication is fourfold, the placement is systematic. The experiment included seven options: 1) control (without fertilizers), 2) seed treatment with Aquamix-T micronutrient fertilizer, 3) seed treatment with Aquamix-T micronutrient fertilizer and foliar fertilization with Aquamix-TV micronutrient fertilizer, 4) seed treatment with Aquamix-Tilist micronutrient fertilizer solution potassium sulphate, 5) seed treatment with microfertilizer Aquamix-Tilist feeding with potassium monophosphate solution, 6) seed treatment with micronutrient Aquamix-Tilist fertilizer with a mixture of Aquamix-TV + potassium sulphate, 7) seed treatment with micronutrient fertilizer Aquamix-Tilist fertilization with potassium monophosphate mixture. Analysis of the data obtained showed that the highest yield of white lupine seeds was obtained on the variants with seed treatment with Aquamix-T micronutrient fertilizer together with foliar dressing with Aquamix-TV micronutrient fertilizer in combination with K2SO4 or KH2PO4 macrofertilizers, which was 3.64 and 3.62 t/ha, respectively, which is 0.64 and 0.62 t/ha or 21.3 and 20.5% above the control variant.

On Absheron gray-brown soils, studies were carried out using various doses of copper microelement against the background of macrofertilizers on the productivity and quality of innab fruits. The results of laboratory analyses showed that Absheron's gray-brown soils are poorly provided with forms of nitrogen, phosphorus and copper microelement and potassium medium. The microelement copper was carried out under the innab culture against a background N100P40K70 in 3 doses. The results of the studies showed that the highest productivity increase (3.2 s/ha or 11.2%) and fruit quality (vitamin "C" 635mg/%, sugar 32.5%, acidity 0.57% and microelement content: Cu-28.3-Zn-30.5.0mg/kg,) the innab plant is observed in the version with copper application at the rate of 2.0 kg per ha. Key words:macrofertilizer, microelement, gray-brown soil, innab, productivity, quality

Substantiation and development of technology elements for obtaining a sustainable productivity of lupine grain is an important and urgent task for expanding the area under this grain crop. There have been considered the study results of the effect of fertilizers ‘Aquamix ST’, ‘Metaborat Kaliya’, ‘Tiaton’ on productivity and grain quality of white lupine. The study was carried out at the All-Russian Research Institute of Lupine – a branch of the FWRC FPA, in the soil and climatic conditions of the southwestern part of the Non-Chernozem zone in 2018-2019. The purpose of the current study was to estimate the efficiency of these innovative micro- and macrofertilizers and the methods of their application on a number of indicators that improve productivity and grain quality of white lupine. The application of fertilizers ‘Aquamix ST’ and ‘Metaborat Kaliya’ contributed to an increase of white lupine grain productivity on 37.5 and 35.4%. There has been determined protein increase from 5.0 to 5.8% in grain of the white lupine variety ‘Piligrim’ in all application variants of ‘Aquamix ST’. The use of ‘Aquamix ST’ and ‘Metaborat Kaliya’ in the vegetation period of plants reduced alkaloid content of lupine grain on 24.7-34.6%. Application of ‘Aquamix ST’ and ‘Metaborat Kaliya’ in white lupine budding stage increased carotene content in grain on 34.3 and 25.0%, respectively. The analysis of the data showed that the variant including pre-seeding treatment with ‘Aquamix ST’ and subsequent treatment in the budding stage of plants was characterized by the maximum amount of lysine and carotene. There was noted that the application of micro- and macrofertilizers resulted in an increase in feed units and digestible protein. Application of ‘Aquamix ST’, including pre-seeding treatment and two treatments in the vegetation period of plants provided the largest yield of digestible protein (1.26 t/ha), 6.0 t/h of feed units, and 54.8 GJ/ha of exchangeable energy. ‘Metaborat Kaliya’, used in the treatment of plants in their budding phase, showed almost the same results. The options that combined high productivity with high grain quality were more valuable according their feed value.

Исследования проводились в 2019–2021 годах на опытном поле Тверской ГСХА. Целью данной научной работы было установить роль макроэлементов минеральных удобрений и микроудобрений в хелатной форме («Аквамикс СТ», «Акварин 5») в формировании урожая клевера и определить их влияние на качество получаемых кормов и плодородие дерново-подзолистых почв в короткоротационном трёхпольном кормовом севообороте в условиях Нечернозёмной зоны. Задачи исследования: изучить роль фона питания в формировании урожая клевера; определить влияние внесённых макро- и микроудобрений на качество полученных кормов. Структура посевных площадей: зерновые — 33%, занятый пар (вико-овёс) — 33%, травы (клевер луговой) — 33%. Сорта культур в севообороте: овёс посевной Кречет, клевер луговой Трио, вика яровая Льговская 22. Фактор A — минеральные макроудобрения (без внесения удобрений (контроль); внесение 1/2 рассчитанной нормы (N25P25K25); внесение полной нормы (N50P50K50). Фактор B — внекорневая подкормка физиологически активными веществами (без внесения микроэлементов; обработка посевов препаратом «Аквамикс СТ»; обработка посевов препаратом «Акварин 5»).Установлено, что внесение физиологически активных веществ в чистом виде позволило получить статистически значимую прибавку урожайности зелёной массы клевера лугового при благоприятных агроклиматических условиях на бедных микроэлементами почвах. Самая высокая урожайность за один укос (+19 т/га зелёной массы) была отмечена на делянках с клевером, обработанным препаратом «Акварин 5» в чистом виде. Применение препарата «Аквамикс СТ» повышало урожайность клевера на 22,2–48,8%, а по фону минеральных удобрений в полной дозе (N50P50K50) — на 4,8–24,3%. Лучшие по качеству корма получены при обработке клевера лугового препаратом «Акварин 5» (8,36 т/га сырой клетчатки и 4,6 т/га сырого протеина), использование его в сочетании с комплексными минеральными удобрениями увеличивало урожайность, но снижало качество получаемой продукции. This research was conducted at the Tver State Agricultural Academy in 2019–2021. Its aim was to test the effect of macronutrients of mineral fertilizers and the chelated forms of microfertilizers (“Akvamiks ST”, “Akvarin 5”) on clover productivity, feed quality and the fertility of sod-podzolic soil in a short three-field crop rotation in the Non-Chernozem region. The objectives were: to determine the correlation between the nutritional background and clover yield; to analyze the impact of macro- and microfertilizers on feed quality. Gramineous occupied 33% of the cultivated area, the mixture of vetch and oats — 33%, other grasses (red clover) — 33%. Crop varieties used in the rotation: “Krechet” (oat), “Trio” (red clover), “Lgovskaya 22” (spring vetch). Factor A — mineral macrofertilizers (no fertilizers, control); the application of 1/2 of N25P25K25; the fertilization with N50P50K50. Factor B — topdressing with physiologically active substances (without micronutrient application; the treatments with the “Akvamiks ST” or “Akvarin 5” preparations). The application of physiologically active substances significantly increased the production of green mass of red clover on the micronutrient-poor soil under favorable conditions. Clover treated with “Akvarin 5” provided the highest yield for one cut (+19 t ha-1 of green mass). “Akvamiks ST” improved clover productivity by 22.2–48.8%, on the background of N50P50K50 — by 4.8–24.3%. Red clover treated by “Akvarin 5” provided the feed of the best quality (8.36 t ha-1 of crude fiber and 4.6 t ha-1 of crude protein). The application of “Akvarin 5” in combination with complex mineral fertilizers increased crop productivity but reduced the quality of the product obtained.