scholarly journals Ecological and economic aspects of the efficiency of Polissia organic plant models

Author(s):  
Yurii Khalep ◽  
Anatolii Moskalenko

Purpose. The objective of the article is to investigate theoretically the possibility of harmonization of ecological and economic aspects of functioning of organic agricultural products production models under natural and climatic conditions of crop enterprises of Polissia zone in the Region of Chernihiv. Methodology / approach. The study was conducted at the Institute of Agricultural Microbiology and Agro-Industrial Manufacture of the National Academy of Agrarian Sciences of Ukraine during 2011–2020. The analysis of ecological and economic efficiency of organic crop rotations was made based on the results of the proprietary research on the example of generalization of predicted results of the developed standard models of organic crop rotations at crop enterprises of Polissia zone. Main methods: modelling (development, in particular, of standard models of crop rotations, modelling of the size of fertilizer potential over time by years); predicting (prediction of receipt and expenditure of nutrients, organic matter), balance (calculation of balances of humus and key nutrients), calculation and design (calculation of the basic parameters of economic efficiency); abstract and logical (formulation of the provisions of the article based on the analysis of studies of other authors, drawing conclusions based on the results of studies conducted). Results. Developed typical crop rotation models are characterized by positive predictive humus balances and acceptable key nutrient balances (NPK). With the implementation of ‘organic’ prices for agricultural products, most crops achieve an acceptable level of profitability. However, in order to achieve a competitive level of profitability of organic production, it must be provided with an appropriate economic mechanism of its functioning, in particular higher prices compared to traditional agricultural products, etc. Harmonization of economic and ecological aspects in simulated crop rotations is achieved primarily by selecting crops with high yields, which are mainly characterized by insufficient or low level of ecological efficiency, and crops with high or medium ecological efficiency, which having insufficient or low economic efficiency, compensate mostly negative ecological consequences of growing crops with high economic efficiency. This is accompanied by achievement of the ecological balance of agrocenoses and an acceptable level of economic efficiency of organic models. The practical aspect of the activities of specific farms in relation to the choice of the appropriate model of organic management should take into account not only considerations of ecological and economic efficiency, but also the level of resource provision within these limits. Originality / scientific novelty. The possibility of harmonization of economic and ecological aspects and achievement of their acceptable level in crop rotations of organic agriculture for crop enterprises has been theoretically substantiated. For the first time, the methodological approach developed by the authors on the distribution of costs for the production and application of organic fertilizers between crops during crop rotation in proportion to the duration and amount of fertilization was implemented. Practical value / implications. Typical models of crop rotations of organic farming for crop enterprises in Polissia were developed. Methods of choosing a certain model were proposed both according to the criteria of ecological and economic efficiency, and taking into account the organizational and economic capabilities and resource provision of a particular business entity.

The article presents the productivity and quality of domestic and foreign potato varieties when grown in crop rotations with shortened rotation. As a green manure crop on control (permanent landing) we used mustard white after harvesting potatoes, in a two-field crop rotation-vicooat mixture, and in a three-field-rotationannual clover. The yield of potatoes of different varieties in crop rotations was significantly higher than in the control rotation. The prevalence of diseases in plantings and tubers on the background of 100% saturation was 1.5-2 times higher than in crop rotation. Plowing of green manure mass into the soil contributed to the containment of potato diseases. The most economically profitable are cultivation of a domestic variety Kolobok in crop rotations. Economic efficiency of growing potatoes in crop rotations with different degrees of saturation shows us that, on average, for 3 years, the most economically profitable cultivation of domestic variety Kolobok in the variants of 2 and 3 - full crop rotations, permanent culture are less effective. For example, the profit in the 2-pole crop rotation for the variety Kolobok amounted to 143 thousand rubles/ha, and in the 3-pole 193 thousand. rubles / ha, permanent culture-74 thousand rubles / ha (2-2. 5 times less). According to the variety Breeze, these indicators amounted to 133, 183 and 70 thousand rubles/ha, respectively.Cultivation of the Saturn variety was even less profitable, namely-112, 163 and 37 thousand rubles / ha, respectively.


2021 ◽  
Vol 262 ◽  
pp. 03026
Author(s):  
D.A. Maksimov ◽  
V.B. Minin ◽  
A.N. Perekopskiy ◽  
A.M. Zakharov

One of the main tasks of organic production of agricultural products is to reduce the load on agroecosystems while simultaneously obtaining a yield indicator of high consumer quality, as with intensive production technologies, and this can be attained only through the fuller use of the biological potential of a crop, species, variety. In the production of agricultural products using biologized machine technologies, they interact with the environment: the atmosphere, hydrosphere and soil. The research is aimed to the creation of adaptive biologized machine technologies that ensure the efficient use of natural resources in the production of agricultural products with a minimum impact on the environment. The research object is the potato agrocenosis in the crop rotation of tilled and field crops. The crop rotation includes potatoes, beets, perennial legumes and cereals. In the experiment, potatoes of the Udacha variety (superelite), zoned for the Leningrad region, were cultivated. Particular attention was paid to the assessment of possible environmental risks in the implementation of the selected technological solutions for growing potatoes, as well as the fight against weeds, since the use of synthetic herbicides, fungicides, insecticides, etc. radically contradicts GOST 33980 - 2016 “Organic products. Rules for production, processing, labeling and sale”.


Helia ◽  
2019 ◽  
Vol 42 (70) ◽  
pp. 101-109
Author(s):  
Aleksandr A. Kvashin ◽  
Nikolay N. Neshchadim ◽  
Sergey V. Gontcharov ◽  
Ksenija N. Gorpinchenko

AbstractSunflower is one of the most profitable crops in Russia. Research was carried out in a multivariate experiment in two 10-course crop rotations with long stationary monitoring. The influence of the crop rotation type and fertilizer doses on sunflower yield and its economic efficiency were studied. The soil is heavy black soil with low humus content arable in layer – 3.90–4.05 %. It was found that it is appropriate and cost-effectively to introduce N20P30 under a sunflower, and with sufficient provision of soil mobile phosphates it is possible to apply some nitrogen fertilizer at 40 kg per ha.


Author(s):  
Ol'ga Gladysheva ◽  
Oksana Artyuhova ◽  
Vera Svirina

The results of long-term research in experiments with crop rotations with different clover saturation are presented. It is shown that the cluster has a positive effect on the main indicators of vegetation of dark-gray forest soil. The introduction of two fields of perennial grasses into the six-field crop rotation significantly increases both the humus reserves and increases the productivity of arable land by 1.5–2 times compared to the crop rotation with a field of pure steam.


Author(s):  
Saulius GUŽYS ◽  
Stefanija MISEVIČIENĖ

The use of nitrogen fertilizer is becoming a global problem; however continuous fertilization with nitrogen ensures large and constant harvests. An 8 year research (2006–2013) was conducted to evaluate the relationships between differently fertilized cultivated plant rotations. The research was conducted in Lipliunai (Lithuania) in the agroecosystem with nitrogen metabolism in fields with deeper carbonaceous soil, i.e. Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The research area covered three drained plots where crop rotation of differently fertilized cereals and perennial grasses was applied. Samples of soil, water and plants were investigated in the Chemical Analysis Laboratory of the Aleksandras Stulginskis University certified by the Environment Ministry of the Republic of Lithuania. The greatest productivity was found in a crop rotation with higher fertilization (N32-140). In crop rotation with lower fertilization (N24-90) productivity of cereals and perennial grasses (N0-80) was 11–35 % lower. The highest amount of mineral soil nitrogen was found in cereal crop rotation with higher fertilization. It was influenced by fertilization and crop productivity. The lowest Nmin and Ntotal concentrations in drainage water were found in grasses crop rotation. Crop rotations of differently fertilized cereals increased nitrogen concentration in drainage water. Nmin concentration in water depended on crop productivity, quantity of mineral soil nitrogen, fertilization, and nitrogen balance. The lowest nitrogen leaching was found in the crop rotation of grasses. Cereal crop rotation increased nitrogen leaching by 12–42 %. The usage of all crop rotations resulted in a negative nitrogen balance, which essentially depended on fertilization with nitrogen fertilizer.


Author(s):  
V.V. Ilinich ◽  
◽  
A.A. Naumova

the presented research is dedicate to confirming the hypothesis about increase in extreme precipitation of recent decades, affecting the degree of soil erosion in crop rotations.


Author(s):  
V. А. Shchedrin

In OOO “Dubovitskoe” which was organized in 2006 as investment project of the AO “Shchelkovo Agrokhim” for 2010 – 2012 three advanced crop rotations have been developed. Before their introduction the grain crops fraction in the cropping system was 62%, then it fell to 49%. At the same time the portion of raw crops increased from 15 to 20%, legumes from 6 to 8%, others (buckwheat, grain maize, etc.) - up to 23%. As of 2017, the crops of leguminous crops have increased noteworthily. There are two predominant soil types here heavy clay loam podzolized chernozem (6615 ha) and grey forest soil (856 ha). Weighted average indicators (as of 2017): humus content in the soils of arable land is 5, 34%; acidity pH is 4.92; labile phosphorus - 111.8 mg / kg soil; exchange potassium - 144 mg / kg soil. The coefficient of the soil fertility in the enterprise (weighted average) is 0.66. This means that maintaining and increasing the soil fertility for arable land of the enterprise is critical task. As a result of the research, it has been established that the technologies introduced in the crop vegetation management (CVS) in the crop rotation conditions ensure high productivity of cultivated crops and stability of humus content in soils as an energy basis and a guarantor of increasing fertility. The indicators of the labile phosphorus Р205 and exchange potassium К20 in the soils depending on the crop rotation vary from a certain decrease to expressed steady growth. Therefore it is necessary to specify seeding rates based on actual data. Sustainable soil acidification in the crop rotations under crop cultivation in OOO “Dubovitskoe” it is the result of the acid feterlizers high rates application, during studying period did not carried out required agromelioration with calcium contenting elements.


2018 ◽  
Vol 2 (95) ◽  
pp. 20-25
Author(s):  
O.J. Kachmar ◽  
O.V. Vavrynovych ◽  
O.L. Dubytsky ◽  
A.O. Dubytska ◽  
M.M. Shcherba

Scientific and methodological approaches to the formation of zonal ecologically safe crop rotations as a basic subsystem of farming in the formation of high, stable productivity of agricultural crops are substantiated, while ensuring the reproduction of soil fertility, increasing the efficiency of fertilizer systems and environmental protection. Various rotational crop rotations for introduction in the conditions of the Carpathian region in farms of different specialization and intensity of production are proposed.


2018 ◽  
Vol 1 (94) ◽  
pp. 45-50
Author(s):  
M.S. Korniychuk ◽  
N.V. Tkachenko

The expediency of fusarium resistant lupines usage in organic farming for improving soil fertility and producing high protein feed for livestock is justified in this article. Organic production excludes the use of mineral fertilizers and pesticides. In these circumstances, increases the value of cultures that positively affect the fertility of soils and their phytosanitary status. These crops include annual fodder lupine (yellow, white and angustifolia), especially varieties that are resistant to disease. Having the highest nitrogen-fixing ability among annual legume crops, lupins, depending on the type and conditions of cultivation, can accumulate from 80 to 300 kg/ha of environmentally pure symbiotic nitrogen in biomass. Plowing the green mass (30-45 t/ha) is equivalent to the corresponding amount of manure or introduction of 5-7 t/ha of ammonium nitrate. 30 kg/ha of phosphorus and 50 kg/ha of potassium are entering the soil with plant remains. Therefore, lupine provides itself with nutrients and still leaves up to 150 kg/ha of nitrogen in the soil after harvesting for subsequent crops in crop rotation. In organic production, fusariosis resistant varieties of lupines are also interesting as a source of high protein feeds for livestock. They are building up to 60 t/ha of biomass, which contains more than one ton of digestible protein. In grain of the fodder varieties contains 40-52% of crude protein, 5.5-6.0% of fat, 10-12% of sugar. The characteristic of fusarium resistant varieties of lupins (yellow, white and angustifolia), created in the NSC "Institute of Agriculture NAAS" and included in the Register of Plant Varieties of Ukraine is presented in this article. These varieties are practically not affected by fusariosis under the production conditions and do not require the use of fungicides during the growing season. They can be grown in crop rotation with a return period of 2-3 years, whereas for unstable it took 6-7 years. Because of the inability to use in organic farming fungicide to prevent crop losses from anthracnose, it is necessary to use predominantly angustifolia lupine varieties, which are now more tolerant to this disease, prevent sowing of infected seeds and adhere to crop rotation. Fusarium-resistant varieties of lupins are suitable for cultivation in poucous and sown crops, and in mixtures with other crops.


2017 ◽  
Vol 1 (92) ◽  
pp. 62-68
Author(s):  
R. Holod ◽  
О. Bilinska ◽  
H. Shubala

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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