scholarly journals NUTRITIONAL VALUE OF GRAIN VARIETIES OF SPRING BARLEY OF TATAR RESEARCH INSTITUTE SELECTION

2022 ◽  
Vol 16 (4) ◽  
pp. 5-9
Author(s):  
Vasiliy Blohin ◽  
Irina Nikiforova ◽  
Irina Ganieva ◽  
Igor Serzhanov
Keyword(s):  
Protein Content ◽  
Energy Content ◽  
Spring Barley ◽  
Humus Content ◽  
Sugar Content ◽  
Winter Rye ◽  
Grey Forest Soil ◽  
Digestible Protein ◽  
Hydrolyzable Nitrogen ◽  
Research Institute

Four varieties and 3 promising lines of spring barley breeding by Tatar Research Institute of Agriculture were studied for grain nutrition to identify the most promising ones. The work was conducted in 2015-2017 in Predkamye Republic of Tatarstan. Grey forest soil, humus content 3.35-3.52 % (GOST 26213-91), alkaline-hydrolyzable nitrogen 85.0...94.0 mg/kg (by A.H. Kornfield), mobile phosphorus 251...287 and exchangeable potassium 149...167 mg/kg (by Kirsanov; GOST 26207-91). The predecessor is winter rye, the repetition is fourfold, the standard grade is Raushan. It was found that line k-295-12, on average over 3 years, significantly exceeded the standard by 27.77 g in crude protein content; by 20.0 g in digestible protein content and by 7.35 g in digestible protein content per feeding unit. The variability of sugar content in varieties was 30.67 ... 47.0 g, significantly exceeded the standard by 13.33 g variety Tevkech (47.0 g) and by 13.0 g line k-23-13 (46.67 g). The fat content was formed in the standard 19.03 g, varieties Kamashevsky, Endan and lines k-23-23, k-561-13 and k-295-12 exceeded it by 7.47; 5.77; 11.47; 9.84 and 5.67 g, respectively. The exchange energy content in grain ranged from 14.42 MJ of the variety Raushan, to 14.72 MJ of the line k-295-12, with no significant differences between genotypes. In the dry year of 2015, the crude and digestible protein content was 148.0...165.0 and 110.74...118.8 g, respectively, and in 2016 it was 129.00...164.4 and 92.88...118.37 g, respectively. In favorable 2017, the content of crude and digestible protein were lower, the varieties Raushan and Tevkech were characterized by the greatest decrease in crude and digestible protein (65.7 and 67.4 % to the level of 2015). On average over 3 years, the best line was k-295-12 for the set of indicators of grain nutrition

SELECTION WORK TO IMPROVE PRODUCTIVE AND BREWING QUALITIES OF SPRING BARLEY

1970 ◽  
pp. 38-40
Author(s):  
О. V. Levakova ◽  
L. М. Eroshenko ◽  
А. N. Eroshenko
Keyword(s):  
Protein Content ◽  
Spring Barley ◽  
Humus Content ◽  
Stability Index ◽  
Field Studies ◽  
Climatic Conditions ◽  
Extract Content ◽  
Labile Phosphorus ◽  
Loam Soil

The article presents and analyzes data of competitive varietal testing of promising varieties and lines of spring barley for yield and brewing qualities. Field studies were conducted in 2014–2017 on dark gray forest heavy loam soil. Agrochemical parameters are total nitrogen – 0.24%, humus content in a layer of 0-40 cm (according to Tyurin) – 5.19%, hydrolysis nitrogen – 123.5 mg / kg, salt extract pH – 4.92 mg-eq / 100g; labile phosphorus - 34.6 mg / 100g, labile potassium – 20.0 mg / 100g. The forerunner is winter wheat. Meteorological conditions in the years of research differed from each other and from the average long-term value. Barley samples were assessed by the protein content in the grain (GOST 10846-91), extract content (GOST 12130-77), weight 1000 grains (GOST 10842-89). Ecological plasticity was determined by the method proposed by E.D. Nettevich, A.I. Morgunov and M.I. Maksimenko, stability index (Ľ) by A. A. Gryaznov, indicator of stability level (Puss) by E. D. Nettevich and A. I. Morgunov. The main measure for assessing quality indicators is protein content. Many other biochemical and technological features of grain depend on its level. The experimental data convincingly testify to the significant influence of the soil and climatic conditions on the yield and, especially, on the brewing qualities of barley in the conditions of the Central Region of the Nonchernozem Zone. According to the studied traits, new valuable varieties Nadezhny, Sir, Noble and selection lines 141 / 1-09 h 746, 23 / 1-10 h 784, distinguished by high adaptability and resistance to adverse environmental factors, have been identified.

scholarly journals Developing a parent material for breeding forage rye in conditions of Bashkortostan

2020 ◽  
Vol 199 (8) ◽  
pp. 19-24
Author(s):  
Anvar Shakirzyanov ◽  
Ilyusya Nikonorova ◽  
Viktoriya Agafonova
Keyword(s):  
Protein Content ◽  
Water Extract ◽  
Source Material ◽  
Water Soluble ◽  
High Protein ◽  
Breeding Value ◽  
Mineral Fertilizers ◽  
Winter Rye ◽  
High Protein Content ◽  
Research Institute

Abstract. The aim of the research is to create source material for breeding forage rye that combines stable productivity over the years, high protein content in the grain, and low content of water-soluble pentosans. The object of research was winter rye. Research methods Research on these tasks was carried out in 2016–2018 in the conditions of the South-Western Urals using generally accepted methods. The predecessor is dead fallow. Soil is chernozem with a predominance of leached, typical and carbonate varieties with the following agrochemical indicators: humus content in the topsoil – 7–9 %, pH value – 7.2–7.6, total nitrogen in the arable layer of the soil – 0.4 %, mobile potassium and phosphorus (according to Machigin) – respectively 20.5 mg/100 g and 10.2 mg / 100 g of dry soil, calcium – 5.6 %. The recommended rate of mineral fertilizers is N60P60K60. Scientific novelty. For the first time, 3 promising winter rye varieties selected in the Bashkir scientific research Institute and 2 samples of the All-Union Research Institute of Plant Breeding were studied in climatic conditions of south-western Cis-Ural. The content of water-soluble polysaccharides (WSP) and the water extract viscosity (WEV) were evaluated. The breeding value of plants was studied. Results The main indicators of the nutritional quality of winter rye grain are found to depend on both the variety (genotype) and the influence of external conditions (phenotype). It was detected that the content of water-soluble polysaccharides and the dynamic viscosity of the grain meal water extract are in a linear relationship (r = 0.98). They are unstable indicators and have a variable character. There are two varieties (Kombaynnyay 3 i Krupnozernaya 2) with the lowest WSP and WEV values and a high protein content in the grain. They can serve as source material to develop fodder crops in conditions of the Republic of Bashkortostan. The rye WEV was found to increase significantly in dry years, and decrease in wet years. The comparative evaluation of grain crops showed that the WEV of winter rye exceeded that of winter wheat by 3.5 times, spring wheat by 3.7 times, and winter triticale by 3.1 times. It was found that the samples with lower WSP and WEV indicators had small grains, low grain unit and higher protein content.

scholarly journals Humus condition under different systems of basic cultivation of dark gray forest soil

2021 ◽  
Vol 36 ◽  
pp. 03002
Author(s):  
Nikolay Perfilyev ◽  
Olga Vyushina
Keyword(s):  
Forest Soil ◽  
Crop Rotation ◽  
Gray Forest Soil ◽  
Spring Barley ◽  
Humus Content ◽  
Research Centre ◽  
Federal State ◽  
Winter Rye ◽  
Average Annual Loss ◽  
The Impact

Studies, were conducted in a stationary experiment between 1988 and 2018 on dark gray forest heavy loam soil in Scientific Research Institute of Agriculture for Northern Trans-Ural Region - Branch of Federal State Institutions Federal Research Centre Tyumen Scientific Centre of Siberian Branch of the Russian Academy of Sciences. The aim of the study is to determine the effect of long-term (30 years) impact of different systems of basic cultivation of dark gray forest soils in the cultivation of grain crops on the humus content. Observations were made according to generally accepted methods during 6 rotations of grain and fallow crop rotation: bare fallow, winter rye, spring wheat, spring vetch, spring barley, unfolded in time and space. The impact of the combined system of tillage with alternation of plowing and no-tillage at 20-22 cm during 6 rotations of a 5-pole grain and steam crop rotation (30 years), increased the humus content in the 0-40 cm layer of dark gray forest soil compared with the initial content by 0.42%. The systems of main tillage - differentiated, without sowing, and mouldboard provided in general a relatively favorable dynamics of the humus state of the soil. The content of humus in the 0-40 cm layer of soil by differentiated and unswept systems during the study period remained close to the initial condition. По отвальной системе содержание гумуса снижалось на 0,22% или в среднем 0,37т/га в год. The greatest loss of humus in the 0-40 cm layer of soil by 0.80% in relation to the initial was the impact of surface treatment with annual discing BDT-2,5 (heavy disc harrows) on 10-12 cm or an average annual loss of 1.33 t / ha.

scholarly journals Comparison of chemical parameters of enzyme active and inactive malt types

2021 ◽  
pp. 161-166
Author(s):  
Vivien Nagy ◽  
Endre Máthé ◽  
Szintia Jevcsák ◽  
Zsolt Fülep ◽  
Ádám Fülep ◽  
...  
Keyword(s):  
Protein Content ◽  
Energy Content ◽  
Raw Materials ◽  
Spring Barley ◽  
Fibre Content ◽  
World Health ◽  
Dry Matter Content ◽  
Brewing Industry ◽  
High Fibre ◽  
Baking Industry

Nowadays there is an increasing emphasis on the use of raw materials. Typically, raw materials – in this study malt – are used in animal feeds and used in the brewing industry. However, in terms of quality (eg. high fibre content), these can be included in human nutrition, we have limited information on this possibility. The aim of our work was to compare different malt flours and examine the possibility of using malt in the baking industry. We were to investigate some of the most relevant parameters, such as dietary fibre content, crude protein content, fat content, carbohydrate content, dry matter content, moisture content, salt and energy content. In the future, we aim to conduct a research on some of these parameters with different malt types as the brewing industry uses novel ingredients different cereals, pseudocereals such as amaranth (Amaranthus spp.), oat (Avena sativa L.), quinoa (Chenopodium quinoa Willd.) in addition to the spring barley (Hordeum vulgare L.) or wheat (Triticum aestivum L.). Based on brewing studies, malt has a high fibre and protein content. Having these advantageous qualities, malt should be part of humans’ healthy diet. Using malt flour in the baking industry can be a new direction which can lead to creating a healthier lifestyle and healthier eating habits than suggested by the WHO (World Health Organization).

ОтзывчивостькартофелянаудобрениеипотериурожаяотфитофторозавусловияхСеверо-ЗападаРоссии

2019 ◽  
Author(s):  
A.I. Ivanov ◽  
Zh.A. Ivanova ◽  
O.I. Yakusheva ◽  
P.A. Filippov
Keyword(s):  
Late Blight ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Organic Fertilizers ◽  
Winter Rye ◽  
Soil Cultivation ◽  
Weather And Climate ◽  
Fertilizer System ◽  
Comprehensive Study

Целью комплексного исследования, выполненного в Меньковском филиале АФИ в 20122017 годах была оценка вредоносности возбудителя фитофтороза в зависимости от почвенноагрохимических и погодноклиматических условий. Методической основой исследования служил длительный полевой опыт агрофизический стационар в системе полевого и овощекормового севооборотов, в которых картофель возделывали по обороту пласта многолетних трав после озимой ржи и после ячменя. Объектами исследования служили: картофель раннеспелого сорта Ломоносовский среднеустойчивого к возбудителю фитофтороза по клубням и слабоустойчивого по ботве дерновоподзолистая почва средней, хорошей и высокой степени окультуренности и системы удобрения культуры. Супесчаная почва опыта характеризовалась рНКСl 5,26,3, содержанием гумуса 2,13,7, подвижных соединений P2О5 195676 мг/кг и К2О 97298 мг/кг. На хорошо окультуренной и высокоокультуренной почвах их поддерживали применением под картофель 35 и 70 т/га органических удобрений соответственно. Факторы исследования: степень окультуренности почвы (варианты: средняя, хорошая и высокая) и уровень применения минеральных удобрений в расчете на заданный КПД (коэффициент полезного действия фотосинтетически активной радиации) (варианты: КПД ФАР, 13 без удобрений КПД ФАР, 24 N80P20K100 КПД ФАР, 35 N120P30K150). В ходе комплексного исследования установлены параметры поражения возбудителем фитофтороза и уровень потерь урожая картофеля в зависимости от агроклиматических и почвенноагрохимических условий. Агрономическая эффективность изученных вариантов системы удобрения на культуре картофеля высокая. Уровень прибавок урожайности клубней и окупаемость 1 кг д.в. удобрений достигли 3358 и 8,311,6 з.ед. (зерновых единиц) на минеральной, 2545 и 3,98,0 з.ед. на органической и 3379 и 3,86,7 з.ед. на органоминеральной системе удобрения. В неэпифитотийных условиях (2 из 3 лет наблюдений) на фоне низких и умеренных показателей поражения общие потери урожая составляют 5, а окультуривание почвы и применение органических и минеральных удобрений снижают их на 3080. На эпифитотийном фоне, повторяющемся 1 раз в 3 года, пораженность ботвы и клубней картофеля возрастает в 4,3 и 6,1, интенсивность поражения в 2,8 и 3 и развитие в 12 и 17,5 раза соответственно. В эпифитотийные годы потери урожая возрастают в 5,2 раза (до 26), а минеральная система удобрения сокращает их только на среднеокультуренной почве. На этом фоне повышение степени окультуренности почвы и доз органических удобрений до высокого уровня неэффективно.Late blight is one of the most harmful potato diseases in the NorthWest of Russia. Today, its negative effects are aggravated by weather and climate changes. The goal of a comprehensive study carried out in the Menkovsky branch of the Agrophysical Institute in 2012 2017 was an assessment of the harmfulness of the late blight pathogen depending on soilagrochemical, weather and climate conditions. The methodical basis of the research was a prolonged field agrophysical stationary experiment in the system of field and vegetablefeed crop rotations, where potato was cultivated after winter rye and after barley, which, in turn, were grown after perennial grasses. The objects of the study were potato Lomonosovsky, sodpodzolic soil with different degree of cultivation and fertilizer systems for the culture. Potato Lomonosovsky is early ripening variety, its tubers are medium resistant to the late blight agent, and its tops are weakly resistant to it. The sodpodzolic soil had average, good and high cultivation degree. Sandy loam soil in the experiment had the value of pHKCl of 5.2 6.3, the humus content of 2.1 3.7, the content of mobile P2O5 and K2O compounds of 195 676, 97 298 mg/kg, respectively. In well and highly cultivated soils, these parameters were maintained by the application of 35 and 70 t/ha of organic fertilizers for potato, respectively. The experimental factors were the degree of soil cultivation (average, good and high) and the level of mineral fertilizer application for a given efficiency of photosynthetically active radiation (PAR efficiency of 1 3, without fertilizers PAR efficiency of 2 4, N80P20K100 PAR efficiency of 3 5, N120P30K150). In the course of the comprehensive study, the parameters of potato damage by late blight and the level of crop losses were established depending on the agroclimatic soilagrochemical conditions. Agronomic efficiency of the studied variants of the fertilizer system for potato was high. The level of tuber yield increase and payback of 1 kg of fertilizers active substances reached 33 58 and 8.3 11.6 cereal units (CU) for the mineral system, 25 45 and 3.9 8.0 CU for the organic one, and 33 79 and 3.8 6.7 CU for the organic and mineral fertilizer system. Under nonepiphytotic conditions (2 of 3 years of the observation), against the background of low and moderate damage rates, the total yield loss was 5, and the soil improvement and organic and mineral fertilizer application reduced them by 30 80. Against an epiphytotic background, repeated 1 time in 3 years, the damage of tops and potato tubers increases by a factor of 4.3 and 6.1, the intensity of the damage grew 2.8 and 3 times, and the development increases by a factor of 12 and 17.5 times, respectively. In the epiphytotic years, yield losses increased 5.2 times (up to 26), and the mineral fertilizer system reduced them only in medium cultured soil. Against this background, increasing the soil cultivation degree and organic fertilizer doses to a high level is ineffective.

The composition and nutritive value of hay grown in the east of Scotland and the influence of late applications of nitrogenous fertilizers

1954 ◽  
Vol 44 (2) ◽  
pp. 140-151 ◽  
Author(s):  
F. E. Moon
Keyword(s):  
Northern Ireland ◽  
Protein Content ◽  
Sodium Nitrate ◽  
Nutritive Value ◽  
Dry Season ◽  
Fertilizer Treatment ◽  
Low Protein ◽  
Ryegrass Hay ◽  
Digestible Protein ◽  
Maintenance Requirements

1. Examination of the composition of hay grown in the east of Scotland during the 4-year period 1948–51 has confirmed earlier work indicating the low protein content of this material. In addition, the digestibility of the protein was found to be low, particularly in the case of the seeds-hays, most of which contained insufficient digestible protein to balance the starch equivalent in meeting the maintenance requirements of cattle.2. In nutritive value the seeds -hays were markedly inferior to samples from England and Wales examined by other workers, but very similar to mature ryegrass hay grown in Northern Ireland. The meadow hays examined were of similar starch equivalent but somewhat richer in protein, and this was associated with a higher digestibility of the protein; in consequence the ratio between digestible protein and starch equivalent was more nearly balanced for the maintenance feeding of cattle.3. Applications of sodium nitrate or ‘Nitrochalk’ about 10–20 days before mowing produced very variable responses in the unusually dry season of 1949, but in other years significant increases in protein content were almost invariably obtained. Low protein seeds-hays of the type commonly found in the Lothians were more responsive to this fertilizer treatment than timothy meadow hay, and while increases in protein content of 20–30% were commonly obtained, when relatively heavy dressings of fertilizer (3 cwt. or more per acre) were used, increases in the region of 50% were sometimes recorded. In most years treatment about 10 days before mowing was fully effective in improving the protein content of the hay. Earlier treatment may be preferable in a very dry season, but in more normal years this may increase the yield of the hay and so diminish the effect on protein percentage.

APPLICATION OF PEARSON SQUARE IN MAKING A MULTICOMPONENT GRAIN MIX AND A PROGRAM ON ITS BASIS

2021 ◽  
pp. 8-12
Author(s):  
Д.А. БЛАГОВ ◽  
И.В. МИРОНОВА ◽  
С.В. МИТРОФАНОВ ◽  
Н.С. ПАНФЕРОВ ◽  
В.С. ТЕТЕРИН
Keyword(s):  
Protein Content ◽  
Market Price ◽  
Crude Fiber ◽  
Carotene Content ◽  
Calcium Phosphorus ◽  
Digestible Protein ◽  
Sunflower Cake ◽  
Trade Names ◽  
Program Interface

Рассмотрено применение метода квадрата Пирсона при составлении многокомпонентной зерносмеси для кормления сельскохозяйственных животных и птицы. В основе его лежат расчеты по содержанию энергетических кормовых единиц и переваримого протеина. Была рассчитана рецептура 6-компонентной зерновой смеси с содержанием 4 ЭКЕ и 550 г переваримого протеина. В ее состав входили жмых подсолнечный, ячмень, овес, рожь, кукуруза, отруби ржаные. Особенность проводимых расчетов для многокомпонентной смеси заключается в применении нескольких квадратов Пирсона. При этом выбирается один вид корма, который имеет более высокую протеиновую питательность, чем остальные. Проведенные вычисления показали, что при заданной питательности зерносмеси необходим ввод компонентов в следующем количестве: жмых подсолнечный — 810 г, ячмень — 570 г, овес — 590 г, рожь — 570 г, кукуруза — 330 г, отруби ржаные — 1150 г. Метод квадрата Пирсона предусматривает отклонение от заданной нормы в пределах ±5,0%. В наших исследованиях отклонение по переваримому протеину составляло 1,1%, а содержание ЭКЕ было в норме. Рассмотренный метод стал основой для разработки алгоритма программы по расчету многокомпонентной зерносмеси. Интерфейс программы состоит из 5 кнопок для выполнения расчетов необходимого количества компонентов для будущей кормовой смеси. Имеются база данных, справка по использованию разработки. Программа рассчитывает не только ЭКЕ и переваримый протеин полученной смеси, но и содержание лизина, сырой клетчатки, кальция, фосфора, каротина. Для удобства проводимых расчетов в программе использована база данных кормов на 43 наименования с указанной питательностью и рыночной ценой. In the present paper consideration is given to the application of Pearson square in making a multicomponent grain mix for feeding farming livestock and poultry. This method is based on calculations of two nutritiousness parameters: content of energetic feed units and digestible protein. The calculation was carried out on the example of the formula of the 6-component grain mix containing 4 EFU and 550 g of digestible protein. The feed mix consisted of sunflower cake, barley, oat, rye, corn, rye middlings. A distinction of the calculations carried out for a multicomponent grain mix lies in using more than one Pearson square. In doing so, we choose that kind of feed which is characterized by higher protein nutritiousness compared to the others. The calculations showed, that to ensure the required nutritiousness of the grain mix, the components must be added in the following quantities: sunflower cake – 810 g, barley — 570 g, oat — 590 g, rye — 570 g, corn — 330 g, rye middlings — 1150 g. The Pearson square method allows divergence from the standard for no more than ± 5.0%. According to our studies, the divergence in digestible protein content is 1.1%, and EGU content is normal. The examined method was used as the foundation for developing an algorithm for a program calculating a multicomponent feed mix. The program interface comprises 5 buttons for carrying out calculations of the quantity of the components, necessary for the feed mix to be prepared. The program also includes a database and user guidelines. An advantage of this program lies in its ability to carry out calculation of lysine, crude fiber, calcium, phosphorus and carotene content in addition to the calculation of EFU and digestible protein in the mix. Besides that, to facilitate the calculations the program comprises a feed database that includes 43 trade names and information on feed nutritiousness and market price.

A preliminary study of protein requirements of African cattle

1963 ◽  
Vol 61 (3) ◽  
pp. 417-420 ◽  
Author(s):  
R. C. Elliott
Keyword(s):  
Protein Content ◽  
National Research Council ◽  
Live Weight ◽  
Weight Changes ◽  
Protein Requirements ◽  
African Cattle ◽  
Preliminary Study ◽  
Digestible Protein ◽  
Daily Gain ◽  
Subsequent Improvement

1. A preliminary study of the protein requirements of young steers of two breeds of African cattle has been described. These requirements were assessed by studying body weight changes of groups of animals fed for 140 days on rations varying in protein content.2. There were only small differences between the breeds in their voluntary food intake while appetite seemed to be linearly related to protein content.3. The two breeds were equally efficient in food and protein utilization.4. Live-weight gain improved significantly as the protein content of the ration increased from 6 to 10%, but a further increase to 14% produced only a small subsequent improvement in growth.5. Maintenance of weight was estimated to occur at a digestible protein intake of only 48% of that recommended by Brody (1945), while the required digestible protein for one pound daily gain was in agreement with the National Research Council (1950) standard.

scholarly journals PRODUÇÃOE CARACTERIZAÇÃO DOSFRUTOS DE ESPÉCIES DE PhysalisCULTIVADAS NO SEMIÁRIDO BAIANO

2018 ◽  
Vol 14 (3) ◽  
pp. 113-121
Author(s):  
Tamara Torres Tanan ◽  
Marilza Neves do Nascimento ◽  
Romeu da Silva Leite
Keyword(s):  
Protein Content ◽  
Reducing Sugars ◽  
Sugar Content ◽  
Soluble Sugars ◽  
Breeding Period ◽  
Total Soluble Sugars ◽  
Biochemical Characteristics ◽  
The Masses ◽  
Solanaceae Family

The Physalisbelongs to the Solanaceae family and has sweetish fruit that can be eaten fresh or processed. In Brazil only Physalis peruvianais commercialized, it is necessary research to encourage the cultivation of other promising speciesof the genus. The aim of this study was evaluate the productivity and the physical and biochemical characteristics of P. angulata, P.pubescensand P. ixocarpafruits, in different stages,in Feira de Santana, Bahia. Productivity and the number of fruits in the breeding period were evaluated.In the fruits, longitudinal (LD) and transverse (TD) diameters, the LD/TD ratio,the masses of fruit, the protein content,reducing sugars,and total soluble sugars were analyzed. The results showed differences between species, with higher number of fruits for P. angulata(140,5). P. ixocarpashowed higher productivity (9 t ha-1) and fruit with greater mass and diameter,however P. pubescensand P. angulatashowed round fruits and higher sugar content, desirable characteristics for fresh consumption and for industrialization.

scholarly journals Effect of systematic application of mineral fertilizers and long-term aftereffect of liming on the organic matter of light-grey forest soil

2020 ◽  
Vol 21 (2) ◽  
pp. 160-168
Author(s):  
N. A. Kodochilova ◽  
T. S. Buzynina ◽  
L. D. Varlamova ◽  
E. A. Katerova
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Forest Soil ◽  
Humus Content ◽  
Total Carbon ◽  
Mineral Fertilizers ◽  
Fertilized Soil ◽  
Grey Forest Soil ◽  
Nizhny Novgorod Region

The studies on assessment of changes in the content and composition of soil organic matter under the influence of the systematic use of mineral fertilizers (NPK)1, (NPK)2, (NPK)3 against the background of the aftereffect of single liming in doses of 1.0 and 2.0 h. a. (control – variants without fertilizers and lime) were conducted in the conditions of the Nizhny Novgorod region in a long – term stationary experiment on light-grey forest soil. The research was carried out upon comple-tion of the fifth rotation of the eight-field crop rotation. The results of the study showed that for 40 years (from 1978 to 2018) the humus content in the soil (0-20 cm) decreased by 0.19-0.52 abs. % in variants as compared to the original (1.60 %); though, humus mineralization was less evident against the background of long-term use of mineral fertilizers compared to non-fertilized control. The higher humus content in the topsoil was noted in the variants with minimal (NPK)1 and increased (NPK)2 doses of fertilizer – 1.41 and 1.25 %, respectively. The humus content in non-fertilized soil and when applying high (NPK)3 doses of mineral fertilizers was almost identical – 1.08-1.09 %. The predominant group in the composition of humus were humic acids, the content of which in the experiment on average was 37.8 % of the total carbon with an evident decrease from 42.6 % in the control to 31.8% when applying increased doses of mineral fertilizers. The aftereffect of liming, carried out in 1978, was unstable and did not significantly affect the content and composition of soil organic matter.

Sign in / Sign up

Export Citation Format

Share Document