Fertilization System as a Factor of Transforming the Humus State of the Soil

2015 ◽  
Vol 2 (2) ◽  
pp. 39-44
Author(s):  
V. Lopushniak
Keyword(s):  
Crop Rotation ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Content Increase ◽  
Energy Reserves ◽  
Gross Energy ◽  
Stable Forms

Aim. To establish the effect of different fertilization systems in short fi eld crop rotation on the change in the state of humus in the dark gray podzolic soils in Western Forest-Steppe of Ukraine. Methods. Field studies were carried out in a stationary experiment of the Department of Soil Science and Agricultural Chemistry of the L’viv National Agrarian University; determination of humus content – according to DSTU 4289:2004, and that of its labile forms – in accordance with DSTU 4732:2007, fraction-group composition – by Ponomare- va-Plotnikova’s method, according to the measurement procedure 31-497058-008-2002. Results. The use of organo-mineral fertilizer system in short fi eld crop rotation with the saturation of organic fertilizers of 15 t/ha of crop rotation contributes to the humus content increase by 0.7 % after the third rotation in 0–40 cm layer of dark gray podzolic soil, the increase in the share of stable forms of humic compounds up to 57–59 % and the increase in the ratio of R HA :R FA to 1.3–1.4. The study demonstrated very high dependence of amount of gross energy reserves in the humus on the R HA :R FA ratio. Conclusions. The combined application of organic fertili- zers in the form of manure, non-market of the crop (straw) and siderate, along with mineral fertilizers is re- commended in short fi eld crop rotations of Western Forest-Steppe of Ukraine toensure expanded reproduction of fertility of dark gray podzolic soil, improvement of its humus status, increase in gross energy reserves and the share of the stable forms and humic acids in the humus.

scholarly journals Efficiency of fertilization systems in the short crop rotation of the Forest-Steppe of the Western Ukraine

2019 ◽  
pp. 93-101
Author(s):  
A. L. Kyrylesko
Keyword(s):  
Crop Rotation ◽  
Soil Nitrogen ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Plant Residues ◽  
Forest Steppe ◽  
Energy Estimation ◽  
Energy Accumulation ◽  
Energy Assessment ◽  
Western Ukraine

The results of the energy assessment of the crop rotation chain in the Forest-Steppe of the Western Ukraine, humus balance in the soil, nitrogen circulation and plant residues are presented. It has been established that all the proposed fertilization systems are effective in terms of energy accumulation. It has been proved that application of mineral fertilizers in combination with organic fertilizers increases Kee values by 1.2 times. The results of energy estimation of a crop rotation link in the northern part of Forest Steppe of Ukraine are presented. It is established that effective in terms of the energy accumulation are all the proposed fertilizer systems. It is proved that the application of mineral fertilizers in the combination with organic ones increases Kee indices 1.2 times.

scholarly journals EFFECT OF MICROBIAL PREPARATIONS ON THE HUMUS BALANCE IN SOD-PODZOLIC SOIL

2019 ◽  
Vol 29 ◽  
pp. 56-61
Author(s):  
L. V. Potapenko ◽  
L. М. Skachok ◽  
N. I. Horbachenko
Keyword(s):  
Organic Matter ◽  
Crop Rotation ◽  
Green Manure ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Organic Mineral ◽  
Rotation Methods ◽  
Comparative Results ◽  
Positive Effect

Objective. To study the efficiency of inoculation of seeds by biological preparations under in-fluence on humus balance in growing crops in short crop rotation. Methods. Field, laboratory, cal-culation-comparative. Results. It was found that the highest entrance of organic matter in the soil was due to the use of organo-mineral fertilizing system NPK-manure-green manure, which contrib-utes to the increase of organic carbon reserves by 17.4 t/ha without the use of microbial prepara-tions and by 18.0 t/ha against the background of microbial preparations in comparison with the mineral fertilizing system. The use of microbial preparations under the fertilizing systems NP-manure-green manure allows to increase the amount of organic matter entering the soil by 1.2 and 1.6 t/ha during crop rotation. Under the use of organic fertilizers (manure, green manure) in com-bination with mineral ones and seed inoculation, not only the recovery of fertility of sod-podzolic soil, but also increase in the content of humus within the limits of 0.43–0.53 t/ha is reported. The use of manure on the background of the NPK makes it possible to increase the humus reserves in the soil by 0.11 and 0.15 t/ha per year. During crop rotation, the amount of newly formed humus in this variant exceeded its mineralization loss by 0.42 t/ha without microbial preparations and by 0.58 t/ha on the background of microbial preparations. Conclusion. The positive effect of the use of biological preparations under inoculation of seeds in combination with the organo-mineral fertiliz-ing system on the content of humus in sod-podzolic soil on average by crop rotation was estab-lished. Organic-mineral fertilizing system (NPK + manure + green manure) provides the highest growth of humus reserve in soil — 0.53 t/ha per year. The use of microbial preparations in the cul-tivation of crops under this fertilizing system contributes to the increase of humus content in the soil by 0.16 t/ha during crop rotation.

scholarly journals Influence of vermicompost aftereffect on the efficiency of spring barley cultivation in arid conditions of the Steppe of Ukraine

2020 ◽  
Vol 4 (2) ◽  
pp. 281-288
Author(s):  
O. O. Vinyukov ◽  
A. P. Dudkina ◽  
T. V. Shevchenko
Keyword(s):  
Crop Rotation ◽  
Spring Barley ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Maximum Yield ◽  
Mineral Fertilizer ◽  
Production Costs ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Control Analysis

Barley is a crop, requires the availability of available nutrients in the soil, especially at the be-ginning of the growing season. The aim of the research was to determine the effectiveness of the aftereffect of using vermicompost when growing spring barley on different backgrounds in the Donetsk region. The studies were carried out according to the methodology of the field experiment of B. A. Dospehova. Research methods: field, supplemented by analytical studies, measurements, calculations and observations. The studies were conducted in 2017–2019 by laboratory-field method in field crop rotation in the experimental sections of the Donetsk SSES NAAS. The repetition in the experiments is 3-fold. The location of the plots is systematic. The soil is alkaline-chernozemic carbonate, having an average supply of mineral nitrogen and mobile phosphorus, low – potassium. The humus content of 4,2 % indicates a high potential soil fertility, but to realize the potential of the culture, additional application of phosphorus-potassium fertilizers is necessary. The technology for growing crops is generally accepted for the farms of the region, with the ex- ception of the factors studied. Variety of barley spring Avers. The experience scheme provides for: control (without fertilizers); background – saturation of crop rotation with vermicompost granular 2 t/ha; background + N30P30K30; background + N60P60K60; N30P30K30. The use of organic fertilizers under the predecessor in crop rotation provided improve nutriti-on conditions for plants, which positively affected the growth and development of spring barley plants. So, on the variants with the use of mineral fertilizers, the highest indices of the number of productive stems and the structure of the crop were noted in the background. The variant where N60P60K60 was added in the background produced the largest mass of 1000 grains – 49,8 g, which is 4,6 % higher than the control. Analysis of the study indicates the positive effect of the aftereffect of organic fertilizer (ver-micompost) on the yield of spring barley. The maximum yield of spring barley was obtained against the background of aftereffect of vermicompost 2 t/ha and the application of mineral fertilizers N60P60K60 – 5,05 t/ha, but due to high production costs, the profitability level is 114,9 %. The application of organic fertilizers under the background provides a yield of 3,67 t/ha and the highest level of profitability of 140,6 %. The optimal technological option provides for the introduction of mineral fertilizers in the norm N30P30K30 amid predecessor saturation with vermicompost. This allows increasing the yield up to 4,90 t/ha (by 1,46 t/ha or 42,4 % to the control) and obtaining a profitability level of 136,1 %. The use only of mineral fertilizer N30P30K30 in severely arid weather conditions of the steppe zone allows increasing the yield by 0,70 t/ha compared to the control but, due to the high cost of pro-duction, leads to a low production profitability of 99,6 %. Key words: spring barley, background, vermicompost, mineral fertilizers, yield, economic effici-ency.

scholarly journals Influence of extreme systems on the growth performance of dark-grey podzolic soil and productivity of the culture of the polish space of Western Forestry of Ukraine

2017 ◽  
pp. 214-223
Author(s):  
Vasyl Lopushniak ◽  
Maria Polukhovich ◽  
Natalia Lagush
Keyword(s):  
Crop Rotation ◽  
Podzolic Soil ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Short Cycle ◽  
Organic Mineral ◽  
Fourth Cycle ◽  
Fertilization System ◽  
Mineral System

The article presents results of the research concerning impact of mineral, organic and organic-mineral system of fertilization with a different share of organic fertilizers on the fertility of dark-grey podzolic soil during the period of four cycles of a short cycle cereals-growing crop rotation. It is argued that application of organic-mineral fertilization with the share of 15.0 ton/ha of organic fertilizers secures increase of the content of total humus in the soil (+ 0.24% and + 6.24 ton/ha to the indicator of the first cycle) after the fourth cycle of a short cycle field crop rotation. Mineral system of fertilization does not supply an extended reproduction of humus share in the soil (-0.06% and -1.56 ton/ha, as compared to the similar variant of the first cycle of crop rotation). It is determined that the dynamics of the content of the main elements of mineral nutrition in the soil also depends on fertilization system. Under conditions of stationary field experiment the largest share of low-hydrolysed compounds of mineral nitrogen (139 mg/kg of soil), phosphorus (113 mg/kg of soil) and potassium (109 mg/kg of soil) in one layer (0–20 cm) was secured by organic-mineral system of fertilization with the share of organic fertilizer of 15 ton/ha at the end of the fourth cycle of crop rotation. Comparing to the first cycle, the share of the main nutrition elements in the variant increased by 27.1, 36.1 and 39.7% respectively. Such a system of fertilization supplied the highest level of the yield of agricultural crops during the four cycles of crop rotation. However, one should note that payback of yield was reduced from a cycle to cycle in case of fertilizers application. Key words: fertilization system, crop rotation, humus content, nutrition elements, yield.

EFFICIENCY OF BIOMODIFIED MINERAL FERTILIZERS IN THE CULTIVATION OF AGRICULTURAL CROPS ON THE CHERNOZEM REGIONS OF THE VOLGA FOREST-STEPPE

2020 ◽  
pp. 73-79
Author(s):  
А. Kh. Kulikova ◽  
◽  
G. V. Saidyasheva ◽  
Keyword(s):  
Winter Wheat ◽  
Ammonium Nitrate ◽  
Crop Rotation ◽  
Spring Wheat ◽  
Spring Barley ◽  
Humus Content ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Pure Steam

Research on the effectiveness biomodified mineral fertilizers were carried out on the basis of Ulyanovsk SRIA – SamSC RAS branch during the rotation grain fallow five fields crop rotation: pure steam – winter wheat – spring wheat – barley – oats in 2013-2018. The field experiment scheme included options (except control): with the introduction of biologics BisolbiFit (introduction with seeds that were treated before sowing), azofoski N15P15K15, in pure form, modified with biopreparation azofoski in the same dose N15P15K15, half a dose of modified azofoski (N7, 5 P7, 5 K7, 5). The effectiveness of fertilizers and biopreparations in crop cultivation was studied on three backgrounds: natural (control), ammonium nitrate at a dose of 40 kg ai/ha (NH4NO3), and modified ammonium nitrate at a dose of 20 kg DW/ha. It was established that modification of azofoski with Bisolbifit biopreparation can significantly increase the coefficients of use of elements from it by plants. The latter allows to reduce the dose of fertilizer, without reducing the productivity of cultivated crops, twice. Long-term cultivation of crops using only mineral fertilizers and biological products led to a relative decrease in the humus content in the soil and its acidification. For 6 years, the content of humus in the arable layer of leached chernozem decreased by 0.12 %, and the acidity of the soil solution increased by 0.5 pHKCI units. In the conditions of the Volga forest-steppe, when cultivated on chernozems, the highest-yielding winter wheat is (up to 4.00 t / ha or more, in our experiments 3.88-4.80 t / ha). The average yield of spring wheat was 2.68-3.31 t / ha, spring barley 2.67-3.21 t / ha, oats 2.15-2.71 t / ha. The highest productivity of crop rotation was observed against a background with modified ammonium nitrate at a dose of 20 kg ai/ha (½NH4NO3) when applying modified azofoski (N15P15K15). Grain harvest for 2013-2018 in this variant was 13.36 t / ha, exceeding the control variant on this background by 1.31 t / ha.

The Fertilizer Systems Efficiency in a Short-Term Crop Rotation in the Western Forest Steppe of Ukraine

2018 ◽  
Vol 12 (2) ◽  
pp. 14-20
Author(s):  
Kirilesko Aleksei ◽  
Khomina Veronika ◽  
Stroianovskyi Vasyl ◽  
Chyncnyk Oleksandr
Keyword(s):  
Energy Storage ◽  
Crop Rotation ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Short Term ◽  
Energy Estimation

Abstract The results of energy estimation of a crop rotation link in the western part of Forest Steppe of Ukraine are presented. It is established that all proposed fertilizer systems are effective in terms of energy storage. It is proved that the use of mineral fertilizers in combination with organic fertilizers increases Kee indices by a factor of 1.2.

Climatic Change Impact on the Grain Crops’ Yielding Capacity at Various Soil Cultivation Ways within Crop-Sugar Beet Rotation Agrocenoses in the Left-Bank Ukraine’s Forest-Steppe

2014 ◽  
Vol 1 (2) ◽  
pp. 61-71
Author(s):  
A. Demydenko ◽  
V. Velychko
Keyword(s):  
Winter Wheat ◽  
Crop Rotation ◽  
Perennial Grass ◽  
Organic Fertilizers ◽  
Cereal Crops ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Average Dose ◽  
Left Bank ◽  
Cultivation Methods

Aim . To estimate the infl uence of contemporary climatic changes to the forming of the cereal crops productivity ( winter wheat and corn ) depending on the adaptive measures system ( fertilizer , cultivating , crop rotation type) in the agrocenoses of the Central Left - Bank Ukraine ’s Forest- Steppe. Methods . On the basis of long - term ( 35 -40 years ) investigations in the multifactor stationary fi eld experience, the dynamics of the cereal crops productiv- ity depending on cultivation , crop rotation type and fertilizer has been analyzed. The infl uence of meteorologica l indices on the nature of a trends’ temporal movement in the cereal crops productivity has been modeled . Results . The effective use of an excess heat resource is connected to the introduction of mineral and organic fertilizers sub- ject to different cultivation methods in various crop rotation type s. For the crop rotation with the perennial grass at treatment with 6 t / ha of manure and average dose of fertilizers, the productivity of winter wheat, independent of the cultivation method, was 4.69 t / ha , barley – 4. 54 t/ h a ; whereas du ring 20 01−201 0 due to rep lacement of man ure wit h sid e-li n e pro ducts – 4.21 and 3 .37 t/ha r e sp ectively, i.e. , less by 0. 48 and 1 .17 t/ha. T he p rodu ctivity of sp rin g barle y, as co mpa red to th e m anur e treatment period, has reduced in av erage by 0. 66 t/ha, o r by 23 .8 per cent; along side, it re mained highe st at th e d eep subsu rface loose ning of so il. Ret ur n from the a ppli ed ferti lizers prove d to be highe r by 12 3 p er c ent independent of the m etho d of tr eat ing the s oil. In fi ve- plot pea-i ncluding crop rotation the a vera ge produ ctivity of wi nte r wheat in 2 001− 2010 d ecre a sed by 1.0 9 t /ha, o r by 20 per c ent. The mo st c onsiderable reduct ion in the grain productivity has b een fi xed at bot h the su bsur face and su rfac e loosen ing of soi l. As f or the cr op r otation with t he pe renn ial grass, on t he contrary, a mo re c onsiderable drop i n the produc tiv- ity was at plo ugh ing (-0.59 t/ha). T he co rn p roductivity in the cr op r otation with t he pe renn ial grass grew a t var i- ous cultivation methods by 1.7 1 t /ha a v e ra ge, and in the pe a-in cluding crop rotation – by 1 .9 5 t /ha. C o nc lu sions. Exce ss heat r esource during 2001−2 013 in cond iti ons of the Left-Ba nk U k raine ’s Forest- S teppe z one ant icipa tes in raisi ng tempos the forecast scenario s of the c limatic change until 20 25 and need s t he intr oduc tion of the a daptive agricult ure system: the ap pl icat ion of diffe rin g-depth c u ltivat ing for the cher nozems with the prec ise following of the p ostharv est cultivat ion technological operatio ns in the s umm er-a utumn p eriod t ogether with the simu ltan eous basic au tumn t reatmen t with both organic and mine ral fertilizers, however, without the basi c d o se tre atmen t with the mineral fertilizers for spri ng c ultivat ion, and al so app lying of green -ma nured fallows in the s tru ctur e of plant ed areas. U nder th e cont empo rary conditio ns, the clim atic change, in par ti cular, an inc re ase in the t emperat ure in the c ent er p art of the L eft-Ban k Uk r aine’ s Forest-Steppe favorabl y affects an incre ase in the p roducti vity of the e xist- ing hybrids of corn, wh erea s the desc endi ng general trend ha s been observed during entire e xplorat ion period for the wint er w heat an d barl ey p roductivity because of an incre ase in the t emperat ure of air t o t he c rit ical values i n the p eri od o f earin g a nd grai n po uring. The ex c e ss h eat res ource is effectively used by the cont emp o rary middle- and of l ate- ri p enin g corn hybrids, for wh ic h th e cond itio ns of optim um soil and atmo sphe ric moist ure supply in the “win dbu r n” are created period of arden t a nd wint er e ar crop s. That contrib u tes to the g rowth o f thei r pr oducti vity.

Sequestration of carbon oxide in different fertilization systems in agrocenoses

2018 ◽  
Vol 5 (2) ◽  
pp. 37-51 ◽  
Author(s):  
O. Demydenko ◽  
Yu. Zapasna ◽  
V. Velychko
Keyword(s):  
Crop Rotation ◽  
Carbon Oxide ◽  
Organic Fertilizers ◽  
Forest Steppe ◽  
Organic Fertilization ◽  
Organic System ◽  
Capacity Level ◽  
Medium Level ◽  
Fertilization System ◽  
By Products

Aim. To substantiate the agroecological estimation of the performance of a short crop rotation in conditions of intense and organic system of fertilization on the basis of restoring normative parameters of emission and se- questration of С-СО 2 circulation while using by-products as organic fertilizers in conditions of modern climatic system of the Forest-Steppe of Ukraine. Methods. Field, statistical, laboratory. Results of Investigations. The performance of short crop rotations is determined by the capacity of С-СО 2 balance. Strong inverse correla- tion was found between the capacity of N and the ratio between C and N in the agrocenosis, which demon- strated that enhancing the humifi cation processes (ratio constriction) led to the increase in the capacity of С org balance and the decrease in the capacity level of С-СО 2 balance (enhancing mineralization), related to the reduction in the performance of crops in the agrocenosis of a crop rotation compared to the organic system of fertilization. The capacity of С-СО 2 and С org balance correlates at the medium level of inverse direction, and the yield of the main products, feed units and digestible protein correlates at the level of strong direct correlation. Conclusions. General mineralization of by-products and humus in the agrocenosis and humifi cation processes are antagonists, so extending the ratio between С and N at the intense fertilization system stimulates the in- crease in performance and reducing С to N similar to the organic fertilization system enhances the humifi cation process due to binding of С org into humus and limits mineralization which leads to the reduction in agrocenosis performance at the organic fertilization system.

Potato cultivation on soddy-podzolic soil of feeding crop rotation in the Komi Republic

2020 ◽  
pp. 26-28
Author(s):  
Н.Т. Чеботарев ◽  
Н.Н. Шергина
Keyword(s):  
Crop Rotation ◽  
Komi Republic ◽  
Climatic Conditions ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Natural Fertility ◽  
Potato Tubers ◽  
Organic And Mineral Fertilizers ◽  
Combined Use

Пахотные угодья Республики Коми в основном представлены дерново-подзолистыми почвами с низким естественным плодородием, которые без применения удобрений быстро подвергаются деградационным процессам, что резко снижает их продуктивность. Цель исследований: оценка эффективности долговременного применения органических и минеральных удобрений при выращивании картофеля в кормовом севообороте в условиях Республики Коми. Методической основой выполнения работ были комплексные исследования дерново-подзолистых почв, клубней картофеля на участках многолетнего полевого эксперимента, заложенного на землях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН в соответствии с «Методическими указаниями географической сети опытов с удобрениями». Длительный период исследований (более 40 лет) характеризовался различными климатическими условиями, которые отразились на количестве урожая и качестве клубней картофеля. Было проведено 7 ротаций (14 лет) с выращиванием картофеля. Вносили органические удобрения – торфонавозный компост (ТНК) в дозах 40 и 80 т/га (1 и 2 фон, соответственно) под картофель и минеральные удобрения – NPК в дозах 1/3; 1/2 и 1 для восполнения выноса растениями элементов питания. Установлено положительное влияние комплексного применения органических и минеральных удобрений на урожайность и качество картофеля, а также на плодородие дерново-подзолистой легкосуглинистой среднеокультуренной почвы в кормовом севообороте в почвенно-климатических условиях Республики Коми. В результате применения шестипольного севооборота и комплексного внесения удобрений с 1978 года к 2019 году в почвах снизилась обменная и гидролитическая кислотность; повысилось содержание гумуса на 0,5% (в контроле); на 0,2–0,5% (с тремя дозами минеральных удобрений); на 0,3–1,1% (с ТНК); на 0,2–1,6% (при совместном применении органических и минеральных удобрений). Наибольшие урожаи картофеля получены при совместном применении органических (80 т/га) и минеральных удобрений (1 NPК) и составили 37,1 т/га клубней (8,5 тыс/га кормовых единиц). При таком соотношении удобрений показано высокое качество клубней картофеля: содержание крахмала 15,5%, витамина С – 19,4 мг%, сырого протеина – 14,1%. Количество нитратного азота не превышало ПДК (ПДК 250 мг.с.м.). Экономические расчеты показали, что при внесении ТНК 40 т/га + 1 NPК в дерново-подзолистые почвы с.-х. использования в среднетаежной зоне Республики Коми при выращивании картофеля, условный чистый доход составит 68,4 тыс. р. с 1 га, себестоимость 1 т картофеля – 2,8 тыс. р., рентабельность 188,7%. The arable land of the Republic of Komi is mainly represented by dern-sub-ground soils with low natural fertility, which without the use of fertilizers are quickly subjected to degradation processes, which dramatically reduces their productivity. The aim of the research is to evaluate the efficiency of long-term use of organic and mineral fertilizers in the growing of potatoes in feed crop rotation in the conditions of the Komi Republic. The methodological basis for carrying out the works was comprehensive studies of dern-subhead soils, potato tubers on the sites of a multi-year field experiment laid on the lands of the Institute of Agrobiotechnology of the FRC Komi SC UB RAS in accordance with the «Methodological Instructions of the Geographical Network of Experiments with Fertilizers». A long period of research (more than 40 years) was characterized by different climatic conditions, which affected the number of crops and the quality of potato tubers. There were 7 rotations (14 years) with potato cultivation. Organic fertilizers – peat-avous compost (TNK) in doses of 40 and 80 t/ha (1 and 2 background, respectively) for potatoes and mineral fertilizers – NPK in doses of 1/3; 1/2 and 1 to replenish the carry-out of food elements by plants. The positive effect of the integrated use of organic and mineral fertilizers on the yield and quality of potatoes, as well as on the fertility of soddy-podzolic light loamy medium cultivated soil in fodder crop rotation in the soil and climatic conditions of the Komi Republic, has been established. As a result of the use of six-bed crop rotation and the integrated application of fertilizers, metabolic and hydrolytic acidity decreased in soils from 1978 to 2019; humus content increased by 0.5% (in control); 0.2–0.5% (with three doses of mineral fertilizers); 0.3–1.1% (with TNCs); 0.2–1.6% (with combined use of organic and mineral fertilizers). The largest potato yields were obtained from the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha tubers (8.5 thousand/ha feed units). The largest potato harvests were obtained with the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha of tubers (8.5 thousand/ha of feed units). With this ratio of fertilizers, the high quality of potato tubers was also determined: the starch content was 15.5%, vitamin C – 19.4 mg%, crude protein – 14.1%. The amount of nitrate nitrogen did not exceed the MPC (MPC 250 mg.s.m.). Economic calculations showed that if TNK is added 40 t/ha 1 NPK to the dern-sub-ground soils of agricultural use in the medium-sized zone of the Komi Republic when growing potatoes, the conditional net income will be 68.4 thousand rubles from 1 ha, the cost of 1 t of potatoes – 2.8 thousand rubles, profitability 188.7%.

Productivity and quality of soybean seeds with different fertilization on podzolized chernozem

2020 ◽  
Vol 1 (97) ◽  
pp. 136-144
Author(s):  
H.M. Hospodarenko ◽  
◽  
I.V. Prokopchuk ◽  
K. P. Leonova ◽  
V.P. Boyko
Keyword(s):  
Crop Rotation ◽  
Crop Yields ◽  
Spring Barley ◽  
Mineral Fertilizer ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Soybean Seeds ◽  
Different Doses

The productivity of agricultural crops is the most variable and integral indicator of their vital activity, which accumulates their genetic potential, soil fertility, weather conditions and components of agricultural technology. Soybean under optimal growing conditions (the reaction of the soil is close to neutral, sufficient phosphorus and potassium nutrition, the use of nitraginization) assimilates from the air about 70 % of the total nitrogen requirement. Therefore, it is believed that it is enough to apply only a starting dose of nitrogen fertilizers (20–40 kg/ha a. s.), to get a high yield with good indicators of grain quality. The results of studies of the influence of long-term (8 years) application of different doses and ratios of fertilizers in field crop rotation on podzolized chernozem in the conditions of the Right -Bank Forest-Steppe of Ukraine on the yield and quality of soybean seeds preceded by spring barley were presented. It was found that crop yields could be increased by 18–77 % owing to different doses, ratios and types of fertilizers. The highest indicators of seed yields for three years of the research (3,02 t/ha) were obtained under the application of mineral fertilizers at a dose of N110P60K80 per 1 ha of crop rotation area, including under soybean – N60P60K60. Exclusion of the nitrogen component from the complete fertilizer (N60P60K60) reduced its yield by 26 %, phosphorus – by 17, and potassium by 11 %. There was no significant decrease in soybean yield in the variant of the experiment with a decrease in the proportion of potassium in the composition of complete mineral fertilizer (N60P60K30) for three years of study. The largest mass of 1000 soybean seeds was formed at doses of N60К60 fertilizers, and their protein content — under the application of complete mineral fertilizer in doses of N60P60K60 and N60P60K30.

Sign in / Sign up

Export Citation Format

Share Document