Based on research and analysis of obtained results, production experiments and statistical data we determined zones of no-till technology implementation depending on soil and climatic conditions, recruitment and biological characteristics of crops. Direct sowing technology had an advantage in growing peas and winter wheat. So compared to traditional technology, the use of no-till technology increased crops, respectively: crop yields - by 4 and 10%, gross production value - by 0.9 and 3.8 thousand rubles, profit - by 0, 7 and 1.3 thousand rubles. It reduced the cost of 0.7 and 1.3 thousand rubles and production costs by 1.2 2 thousand rubles; and the level of profitability was higher by 11 and 16%. In the cultivation of winter rapeseed, maize for grain and sunflower using traditional cultivation technology, there is an advantage over the direct sowing technology and the difference, respectively, to the crops was: a crop yield was higher by 0.65, 0.4 and 0.24 t / ha; gross output value - 13.6, 4 and 6.8 thousand rubles, profit - by 9.8, 0.9 and 2.5 thousand rubles; and the level of profitability was higher by 8, 2 and 7%.The reduction in production costs of direct sowing technology is due to the absence of the need for tillage and the savings associated with the lack of purchase of tillage equipment, reduction in the number of equipment, etc. With direct sowing technology, there is an increase in the cost of pesticides by 30-50%, the use of mineral fertilizers - by 15-30%.
Keywords: Winter wheateconomic efficiencyzero soil treatment technology
Resource conservation in agriculture can be carried out in different directions: using methods of ecological landscape agriculture, reducing the number of technological operations, reducing the cost of costs in the nutrition and plant protection systems, introducing perennial grasses into crop rotations and in many other ways. The main reserve of energy saving in crop production is the improvement of tillage (Lollato, Diaz, & DeWolf, 2019).
Various ways have been proposed to minimize this energy-intensive process. But, according to Mtyobile, Muzangwa, and Mnkeni (2019) the resource saving was reduced to reducing the depth of tillage, carrying out several technological operations with one tool (up to 4-5) in one pass across the field, improving the working bodies and reducing the traction efforts of the tillage equipment.
However, studies show that with the use of traditional machines, the entire minimization often comes down to replacing plowing with rootless processing methods, unjustified simplification of technology, or replacing mechanical operations with herbicides. In most cases, the quality of processing remains unsatisfactory and gives a low economic effect (Demir & Gözübüyük, 2019; Haramoto & Pearce, 2019; Obade, 2019). Obviously, a dispute about the advantages and disadvantages of dumping and dumping tillage methods, especially proposals to universalize the use of each of them, which has been going on for the last decades, can only be resolved on the basis of new conceptual approaches to the technology of growing crops using a new-generation agricultural equipment. In this regard, the technology of cultivation of agricultural crops without tillage, which in the world is called No Till technology or direct sowing technology, is an issue of great interest. In Russia, it is called zero tillage technology or zero soil treatment technology. This technology is becoming more and more widespread in the world according to (Volters, Vlasova, Perederieva, Trubacheva, & Tuturzhans, 2018); it covers about 150 million hectares.
Zero soil treatment technology gained such a spread due to the fact that with the maximum possible reduction in production costs, the yield of cultivated crops simultaneously increases, which makes this technology the most cost-effective (Rosario-Lebron, Leslie, Yurchak, Chen, & Hooks, 2019).
The main principle of the No-till system is to use the natural processes that occur in the soil (Mehra, Sarkar, Bolan, Chowdhury, Desbiolles, 2019; Reeves, Somasundaram, Wang, Finn, & Dalal, 2019).
Similarly was observed in the studies occured by (Kassam, Friedrich, & Derpsch, 2019; Schmidt, Mitchell, & Scow, 2019), when intense mechanical action on the soil in the form of plowing, disking, cultivation, harrowing, etc. leads to increased aeration of the soil, violation of its structure, reduction of water absorption and water retention, enhanced mineralization of organic matter.
The loss of agrophysical and biological factors of soil fertility not only leads to a decrease in potential and effective fertility, but also to erosion and deflation, with the result that in a few years you can lose a fertile soil layer (Bavougian, Sarno, & Knezevic, 2019; Rosario-Lebron et al., 2019; Hernandez, Slater, & Corbala, 2019; Perederieva, Vlasova, Volters, Trubacheva, & Shutko, 2017; Schmidt, Mitchell, & Scow, 2019).
With zero soil treatment technology, the soil is not machined before sowing and in the process of plant care - operations for plowing, disking, cultivation are completely absent. Plant residues remain on the soil surface and favour better accumulation and retention of moisture for cultivated plants (Gura & Mnkeni, 2019; Reeves et al., 2019; Sperow, 2019; Zhou, Zeng, Chen, Tu, & Qin, 2019).
Higher yields of crops cultivated by zero soil treatment technology, while reducing production costs, also provide higher economic efficiency of this technology compared to conventional soil-based tillage, which is crucial for the development of this technology in market conditions.
Calculations of the economic efficiency of production of basic agricultural crops were carried out. These crops are cultivated in three different soil-climatic zones of the Central Ciscaucasia: extremely arid, arid, and unstable moistening.
Purpose of the Study
The main goal of the research is to determine the economic efficiency of crop cultivation using No-till technology in the major soil-climatic zones of the Central Ciscaucasia.
Studies that were occurred to determine the economic efficiency of cultivation of field crops using zero soil treatment technology were carried out on the basis of agricultural enterprises located in three different soil and climatic zones of the Central Ciscaucasia: extremely arid, arid and unstable moistening zones. After harvesting the previous crops using direct sowing technology, the herbicide of continuous action Glyphosate, 1.4 l / ha + dicamba, 0.3 l / ha was applied twice. The sowing of crops was carried out by direct sowing machines. Grain harvesting was performed by NewHolland combines in the “Slavyanka” harvester unit. During the growing season of winter wheat, the Prima Donna herbicide of 0.4 l / ha + Garnet 0.12 l / ha was used. “Borey” insecticide, 100 g / ha + fungicide was used against blasts. Recommended varieties and hybrids were used for these cultivation zones.
Also we used a calculation of the economic efficiency of agricultural production according to the traditional method, using technological charts and current regulatory costs and prices.
Comprehensive economic assessment of zero soil treatment technology use and the determination of its effectiveness is possible only for a longer period, taking into account all the crops of crop rotation and in comparison with the traditional technology of their cultivation for a specific soil and climatic zone
Experiment 2. In a dry climate, using the field of Vodopyanov Farmery in Petrovsky District, where the soil cover is represented by dark chestnut soils in 2018, in general, the productivity of similar crops turned out to be lower compared to the indicators of the agricultural complex “Shangalinsky” located within the same administrative district.
The calculation of the economic efficiency of the production of winter rapeseed, winter wheat, grain maize, sunflower indicates a profitable production of these crops, with the exception of grain maize, in dry conditions even for the area where the farm is located during the study period.. Level of productivity, choice of culture, technology of cultivation, weather conditions had the decisive influence on these indicators. Considering the structure of costs in the cultivation of culture with this technology, we noted a significant reduction in the cost of fuel, maintenance, wages, etc. due to the refusal of tillage (peeling, basic tillage, etc.), reducing the number of units, tools. This was the basis for reducing by 30-50% of labour costs per unit area and 1 ton of products. At the same time, to obtain the planned level of crop yields in comparison with the traditional system, it is necessary: an increase in the doses of fertilizers applied, additional treatments with herbicides of continuous action, the acquisition of specialized seed drills, and rigorous implementation of technology elements. In general, it should be recognized that the cultivation of agricultural crops (winter wheat) using no-till technology is economically advantageous. According to preliminary calculations, the economic efficiency indicators for the cultivation of winter wheat, sunflower and winter rapeseed provided a level of profitability of about 29-80%, which is significantly lower than in the previous period (table
Comprehensive economic assessment of the use of "zero soil treatment" technology and the determination of its effectiveness is possible only for a longer period, taking into account all the crops of crop rotation and in comparison with the traditional technology of their cultivation for a particular soil-climatic zone.
Experiment 3. It was conducted in Krasnoselskoye Farmery in the Grachevsky district of the Central Ciscaucasia, which belongs to the unstable humidification zone, characterized by continental, unstable humidification during the year (hydrothermic factor is 0.9-1.1) and a rather high heat supply of the growing season. Annual precipitation is 450–550 mm. The soil of the experimental plot is ordinary blach soil with low-humus and a heavy clay loam.
The calculation of the economic efficiency of grain maize and winter wheat production after various predecessors, such as sunflower oilseeds and winter rapeseed, showed that these conditions were influenced by harsh weather conditions, the level of cultivation technology. It should be recognized that the level of productivity of the analyzed crops turned out to be lower than in the earlier analyzed farms of Petrovsky district, which significantly reduced the economic efficiency of crop production and the level of profitability was only 1-25% (Table
Considering the structure of costs in the cultivation of culture with this technology, we noted a significant reduction in the cost of fuel, maintenance, wages, etc. due to the rejection of tillage (hulling, basic tillage, cultivation, etc.), reducing the number of units, tools, as well as more efficient use of arable land. This was the basis for reducing by 40-50% of labour costs per unit area and 1 ton of products. At the same time, to obtain the planned level of crop yields as compared to the traditional system, it is necessary to: increase the doses of fertilizers, additional treatments with herbicides of continuous action, purchase of new specialized agricultural equipment (seeders, sprayers, headers), consistent implementation of the technology.
Of particular interest is the comparison of economic indicators of crop cultivation using traditional technology and no-till technology. Based on the research and analysis of the results, production experiments and statistical data, we determined dependence on the soil and climatic conditions, recruitment and biological characteristics of crops – and the zone of the no-till technology implementation:
To ensure the sustainability of the soil cover, the preservation and accumulation of organic matter in the soil, stabilize yields and reduce the cost of crop production, it is recommended to cultivate crops using the no-till technology in the arid zone and unstable moistening zone with an annual rainfall of 390-540 mm on southern black soil, ordinary, chestnut and dark chestnut soils of various particle size distribution mainly formed on less loams. Basically, the optimal soil and climatic conditions are typical for the central part of the Stavropol Territory, corresponding to the arid zone and unstable wetting zones, where farms using no-till technology are concentrated.
For the main crops in crop rotations (winter wheat, grain maize, peas, winter rapeseed, sunflower) cultivated on the farms of the analyzed zones, Table
Analysis of the data presented in Table
In the cultivation of winter rapeseed, maize for grain and sunflower using traditional cultivation technology, there is an advantage over the direct sowing technology and the difference, respectively, to the crops was: crop yield was higher by 0.65, 0.4 and 0.24 t / ha; gross output value - 13.6, 4 and 6.8 thousand rubles, profit - by 9.8, 0.9 and 2.5 thousand rubles; and the level of profitability was higher by 8, 2 and 7%.
The reduction in production costs of direct sowing technology, in comparison with the traditional one, is due to the absence of the need for tillage and, as a result, the savings associated with the lack of purchase of tillage equipment, reduction in the number of equipment, maintenance personnel, and consequently fuel and amortization, wages, etc. At the same time, with direct sowing technology, compared to traditional technology, there is an increase in the cost of pesticides - by 30-50%, the use of mineral fertilizers - by 15-30%.
One of the factors that increase production costs is the purchase of expensive specialized seed drills, sprayers, liquid fertilizer aggregates, and strict implementation of technology elements.
In general, it should be recognized that the cultivation of crops using no-till technology is economically beneficial.
However, a comprehensive economic assessment of the use of "zero soil treatment" technology and the determination of its effectiveness only for 2018, which was characterized by extremely dry conditions, is not an objective assessment. Determination of economic efficiency is possible only for a longer period, taking into account all the crops of crop rotation and in comparison with the traditional technology of their cultivation for a particular soil-climatic zone.
Thus, the successful implementation of no-till technology depends on a number of factors: the soil and climatic conditions of the area where the farm is located, the development of crop cultivation technology through the optimization of crop rotation, an integrated approach to the plant protection system, the construction of a fertilizer system and the rational and professional use of external materials. Only this will ensure the erosion resistance of the soil cover, the accumulation of organic matter in the soil, increase in yield and reduce the cost of crop production in the zone of unstable moistening of the Central Ciscaucasia.
Thus, the successful implementation of No-till technology depends on a number of factors: the soil and climatic conditions of the farm location, the development of crop cultivation technology through optimization of crop rotation, an integrated approach to the system of protecting plants from pests, diseases and weeds, building a fertilizer system and rational and professional use of external materials. Only this will ensure the erosion resistance of the soil cover, the accumulation of organic matter in the soil, increase in yield and reduce the cost of crop production.
The work was carried out as part of the state contract No. 223/18 dated August 22, 2018 to carry out research, development, and technological works to meet the state needs of the Stavropol Krai.
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Dorozhko, G., Ozheredova, A., Bezgina, Y., Vlasova, O., & Esaulko*, A. (2019). Zero Soil Treatment Technology As Element Of Economic Efficiency In Cultivation. In D. Karim-Sultanovich Bataev, S. Aidievich Gapurov, A. Dogievich Osmaev, V. Khumaidovich Akaev, L. Musaevna Idigova, M. Rukmanovich Ovhadov, A. Ruslanovich Salgiriev, & M. Muslamovna Betilmerzaeva (Eds.), Social and Cultural Transformations in the Context of Modern Globalism, vol 76. European Proceedings of Social and Behavioural Sciences (pp. 909-918). Future Academy. https://doi.org/10.15405/epsbs.2019.12.04.121