WEED INFESTATION OF CORN AND ITS YIELDING CAPACITY DEPENDING ON CROP ROTATION IN THE SOUTHERN FOREST-STEPPE OF UKRAINE

The influence of basic tillage and fertilizer on weediness of sunflower crops The article presents the influence of the basic tillage and fertilization system on weediness of sunflower crops in the stationary crop rotation during 2016–18 in the conditions of the eastern part of the Forest-Steppe of Ukraine. The largest number of species of weeds and contaminants in crops was found on the background without fertilizers (plowing) and on the organic-mineral intensive background (manure aftereffect, 30 t / ha + N30P30K30, chiseling). The type and level of weed infestation of sunflower crops significantly depended on the studied factors. Keywords: sunflower, crop rotation, tillage, fertilizers, weeds, herbicides.

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

Agricultural science and practice ◽

10.15407/agrisp2.02.039 ◽

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.

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Sequestration of carbon oxide in different fertilization systems in agrocenoses

Agricultural science and practice ◽

10.15407/agrisp5.02.037 ◽

2018 ◽

Vol 5 (2) ◽

pp. 37-51 ◽

Cited By ~ 1

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.

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Productivity of sugar beets depending on the method of main soil tillage and levels of fertilization

Interdepartmental thematic scientific collection "Agriculture" ◽

10.31073/zem.94.21-26 ◽

2018 ◽

Vol 1 (94) ◽

pp. 21-26

Author(s):

M. L. Tyrus

Keyword(s):

Sugar Content ◽

Climatic Conditions ◽

Soil Tillage ◽

Soil Protection ◽

Forest Steppe ◽

Sugar Beets ◽

Yielding Capacity ◽

Root Crops ◽

Favorable Weather ◽

Fertilization Level

Soil tillage and fertilization level are important in the system of agro-technical measures that increase soil fertility and sugar beets productivity. Today the cultivation of this crop requires a great deal of expense, therefore, there is a need for a wider study of the use of cheap soil cultivation, soil protection, energy-saving soil tillage technologies and appropriate ferti-lization levels. Under western Forest-Steppe of Ukraine conditions, investigations were conducted on dark grey podzolic light loamy soils where the influence of tillage models and fertilization levels on the formation of sugar beets root crops was studied. Shallow no-plow tillage of the soil on 14-16 cm is expedient to use as a main tillage under sugar beets. Under favorable weather and climatic conditions, it can provide yielding capacity at the level of deep fall plowing. The use of shallow no-plow tillage helped to increase the yielding capacity of sugar beet roots relative to plowing by 28-30 cm for 1.3 t / ha and the biological sugar output – for 0.2 t / ha. Then the sugar content was by 0.1% higher in the application of deep fall plowing on 28-30 cm. The optimization of the system of sugar beets fertilization allows ensuring the growth of the yielding capacity of root crops. It is established that the application of fertilizer norm N300P225K350 provides the yielding capacity at the level of 90 t / ha. The sugar content of root crops at the given fertilizer rate was the lowest in the experiment - 16.5 – 16.6%. Thanks to the high yielding capacity of root crops in terms of N300P225K350, the sugar harvesting was the highest and depending on the method of basic soil tillage was 14.95 – 14.79 t / ha. That is in 3.2 times more as to the control, in 1.3 times more than the norm of N180P135K210 and in 1.1 more than the fertilization level N240P180K280.

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The efficiency of the crop rotations with short rotation with different levels of their saturation of cereals and crops in the conditions of Western Forest-Steppe

Interdepartmental thematic scientific collection "Agriculture" ◽

10.31073/zem.92.62-68 ◽

2017 ◽

Vol 1 (92) ◽

pp. 62-68

Author(s):

R. Holod ◽

О. Bilinska ◽

H. Shubala

Keyword(s):

Crop Rotation ◽

Green Manure ◽

Water Regime ◽

Crop Rotations ◽

Forest Steppe ◽

Field Crop ◽

Soil Water Regime ◽

Short Rotation ◽

Arable Farming ◽

Green Manure Crops

There were analyzed and disclosed the basic components of arable farming systems and their Meaning, the current state and scientific principles in the context of the further development of field crop cultivation in the conditions of Western Forest-Steppe. The purpose of research. To study an effect of alternation of crop in crop rotation in conditions of brief rotation on the soil water regime, productivity and economic efficiency. Methods. Field, laboratory, comparative and analytical. Results. The results of researches on study of productivity of four-field crop rotations with short rotation depending on their saturation by the grain and tilled cultures, of various use of mineral fertilizers, green manure crops and collateral products which were conducted during 2014-2015 in the stationary experiment of the scientific and technological department of plant growing and arable farming, of the TDSGDS of the IKSGP of NAAN are resulted In the article. The elements of the biologization of farming are the basis of our development of crop rotations with short rotation. The study of the effect of green manure crops and collateral products in four-field crop rotations with a different set of crops on the change of soil fertility and productivity of crop rotations as a whole was carried out to this purpose. According to the results of the research, is provided the information on the effectiveness of improving the field crop rotations with short rotation with varying degrees of saturation by grain and tilled crops, that ensure the production of environmentally friendly products, reducing the cost of grain, improving the quality of marketable products. The study of the effect of alternation of crop in crop rotation in conditions of brief rotation on the soil water regime, productivity and economic efficiency showed that an increase in crop rotation productivity is observed in short-rotation crop rotations, if they are saturated by grain crops up to 100%, cereals crops reduction to 50% in crop rotations contributes to a decrease in crop productivity. Conclusion. Thus, the results of the research showed that with the correct construction of short rotational crop rotations, such problems as rational use of nutrients and soil moisture, control of weeds and pests of agricultural crops, improvement of the physical and chemical properties of the soil, increased efficiency in the use of fertilizers and equipment, Cheapening of the received agricultural product may be solved.

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

Collected Works of Uman National University of Horticulture ◽

10.31395/2415-8240-2020-97-1-136-144 ◽

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.

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Soybean production potential under crop rotation in the central forest-steppe of Trans-Urals

Кормопроизводство ◽

10.25685/krm.2021.2021.3.002 ◽

2021 ◽

pp. 5-5

Author(s):

Ю.В. Суркова ◽

И.Н. Цымбаленко ◽

С.Д. Гилев

Keyword(s):

Crop Rotation ◽

Cost Effective ◽

Crop Productivity ◽

Nitrogen Fertilizers ◽

Forest Steppe ◽

Hydrothermal Coefficient ◽

Soybean Yield ◽

Soybean Production ◽

Rotation System ◽

Favorable Conditions

Представлена комплексная оценка эффективности диверсификации севооборотов, а также способов обработки почвы и влияния азотных удобрений при возделывании сои в условиях засушливого климата центральной лесостепной зоны Зауралья. По результатам исследований, проведённых в 2010–2020 годах в Курганском НИИСХ – филиале УрФАНИЦ УрО РАН, установлено влияние гидротермических условий региона и агротехнических приёмов на формирование урожайности сои. В острозасушливые годы с гидротермическим коэффициентом 0,3–0,6 урожайность сои снижалась наполовину по сравнению с благоприятными по тепло- и влагообеспеченности периодами (ГТК — 1,1–1,2). На фоне удобрений и надёжной системы защиты посевов сои от сорных растений менее затратная поверхностная обработка по урожайности не уступала вспашке. Минеральный азот в дозе N30 на фоне средней обеспеченности почвы подвижным фосфором в острозасушливые годы обеспечил прибавку зерна сои 0,28 т/га, в благоприятные по условиям увлажнения годы прибавка от применения N30 увеличилась до 0,43 т/га. Диверсификация традиционного четырёхпольного зернопарового севооборота путём замены пшеничного поля посевами сои обеспечила повышение продуктивности, улучшение качества продукции и экономических показателей. Рентабельность производства продукции с севооборотной площади в вариантах с ресурсосберегающей поверхностной обработкой выросла до 110% без удобрений и до 117% — на фоне N30 против 49 и 66% в зернопаровом севообороте. В результате многолетних исследований в контрастных погодных условиях установлено, что производство сои в полевом севообороте в центральной лесостепной зоне Зауралья рентабельно даже в острозасушливые годы. При низком уровне урожайности (0,50–0,70 т/га) рентабельность составляет 30–50%. В благоприятные годы ресурсы зауральского климата позволяют получать урожайность сои на уровне 1,40–1,80 т/га. При этом рентабельность повышается до 220%. The report deals with the optimization of a rotation system as well as the effect of tillage and nitrogen fertilizers on soybean productivity under the drought of the central forest-steppe in Trans-Urals. The investigation was conducted at the Kurgan Research Institute of Agriculture in 2010–2020. The aim was to test the effect of tillage, moisture and temperature on soybean yield. Drought (hydrothermal coefficient of 0.3–0.6) reduced soybean productivity by 50% in comparison to favorable conditions (hydrothermal coefficient of 1.1–1.2). Less expensive surface tillage was as effective as plowing under fertilization and weed control. In dry years application of N30 increased grain yield by 0.28 t ha-1 under medium content of soluble P. Under favorable conditions the increase amounted to 0.43 t ha-1. Substitution of wheat with soybean in the conventional four-field crop rotation system resulted in higher crop productivity, yield quality and economic effectiveness. Payback raised up to 110% under surface tillage and no fertilization and 117% — on the background of N30 versus 49 and 66% obtained under fallow and grain crop rotation. Soybean production was cost-effective even under drought. Low soybean yield (0.50–0.70 t ha-1) resulted in profitability of 30–50%. Favorable conditions of the region provided soybean yield of 1.40–1.80 t ha-1, increasing profitability up to 220%.

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ECONOMIC EFFICIENCY OF FIELD CROP ROTATION IN OPTIMIZATION OF OF SOWING AREAS STRUCTURE

Vestnik of Kazan state agrarin university ◽

10.12737/article_5a5f05dc679404.30714646 ◽

2018 ◽

Vol 12 (4) ◽

pp. 45-49

Author(s):

Валерий Чибис ◽

Valeriy Chibis ◽

Светлана Чибис ◽

Svetlana Chibis ◽

Илья Кутышев ◽

...

Keyword(s):

Crop Rotation ◽

Spring Wheat ◽

Western Siberia ◽

Field Experiments ◽

Humus Content ◽

Maximum Yield ◽

Crop Rotations ◽

Forest Steppe ◽

Field Crop ◽

Oil Crops

In a long-term places, located on the experimental fields of Siberian Research Institute of Agriculture (Omsk), the schemes of field crop rotations were modernized by introducing oil crops (rapeseed, soybean) into rotation and replacing the repeated wheat crops with barley and oats. Accounting of grain crops productivity and accompanying observations were carried out in three field rotations of different lengths of rotation (four- and five-field) and on permanent sowing. The repetition of the experiments is fourfold. The system of agrotechnical measures recommended for the zone of the forest-steppe of Western Siberia was applied. The study of predecessors in the cultivation of crops for various purposes was carried out in field experiments using conventional methods. The humus content for rotation in the soil layer of 0-40 cm increased by 0.19% in the crop rotation “rapeseed - wheat spring wheat - barley - soybean - spring wheat”. The largest accumulation of humus (0.83%) was in the rotation “soybean - spring wheat - barley – oats”. During the years of research wheat productivity varied from 0.82 to 2.22 tons per hectare. Wheat was the first crop in all its predecessors to form grains, on average, by 0.3-0.5 tons per hectare, than the second crop. The yield of soybeans in the crop rotation was 1.23-1.78 tons per hectare. The productivity of rapeseed was low, its productivity over the years was 1.31 tons per hectare. Grain-fodder crops (barley, oats) averaged 0.4-0.6 tons per hectare, higher than the spring wheat productivity in the alternating rotation. The maximum yield of grain from a hectare of arable land was noted in the crop-steam rotation and amounted to 1.7 tons. An increase in the yield of feed-protein units was observed in crop rotations saturated with oil crops (rapeseed and soybean) and amounted to 3.4-4.0 tons per hectare. The economic calculation showed that the cultivation of field crops in the rotational crop rotation of “soybean - wheat - barley – oats” increased profitability by 44%, net income - by half, in comparison with the control variant. The obtained materials can be used to develop schemes of field crop rotations for the zone of the forest-steppe of Western Siberia.

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

Feeds and Feed Production ◽

10.31073/kormovyrobnytstvo201987-14 ◽

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.

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POTASSIUM BALANCE IN THE SOIL AND THE EFFECTIVENESS OF POTASSIUM DEFICIENCY SYSTEM OF FERTILIZATION

Bulletin of Uman National University of Horticulture ◽

10.31395/2310-0478-2020-2-56-61 ◽

2020 ◽

Vol 2 ◽

pp. 56-61

Author(s):

Н. M. Hospodarenko

Keyword(s):

Crop Rotation ◽

Spring Barley ◽

Barley Straw ◽

Mineral Fertilizers ◽

Forest Steppe ◽

Field Crop ◽

Heavy Loam ◽

Different Types ◽

Loam Soil ◽

The Right

The influence of long-term application of different doses and ratios of mineral fertilizers in field crop rotation on the content of basic nutrients in grain and straw of spring barley has been established. The study was held in the conditions of podzolic black heavy loam soil of the Right-Bank Forest-Steppe of Ukraine. The relative nutrients removal by spring barley depending on the doses of different types of fertilizers and their combinations in the field crop rotation is calculated. It is shown that the content of basic nutrients in the harvest of spring barley (grain and straw) significantly depends on the content of their mobile compounds in the soil. This is especially true of nitrogen and less of potassium. Economic removal of nutrients from the grain harvest of spring barley depends on the doses of fertilizers in the field crop rotation and the ratio of nutrients in them. The largest share is nitrogen (65–122 kg / ha), followed by K2O - 47–92 and P2O5 26–51 kg / ha. From 1 ton of grain and the corresponding amount of straw, spring barley of the Commander variety removes 19.2–22.4 kg of nitrogen, 7.8–9.2 - P2O5 and 14.0–16.8 kg of K2O from the soil, depending on the fertilizer and saturation of field crop rotation with different types of fertilizers. Straw is an important source of soil organic matter reproduction and the return of nutrients used for crop formation. Depending on the system of fertilization, 17–25% of nitrogen, 25–30% of phosphorus and 68–69% of potassium are returned to the soil with spring barley straw via economic removal. It is specified that spring barley of the Commander variety absorbs N, P2O5 and K2O in the following ratio: 1: 0,4: 0,3 to form a unit of grain yield and the corresponding amount of straw in the conditions of podzolic black heavy loam soil of the Right-Bank Forest-Steppe.

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