scholarly journals Analysis and forecast of the production parameters of major cereal crops in Serbia

2020 ◽  
Vol 24 (2) ◽  
pp. 45-49
Author(s):  
Nebojša Novković ◽  
Nataša Vukelić ◽  
Miljko Janošević ◽  
Srboljub Nikolić ◽  
Slaviša Arsić
Keyword(s):  
Downward Trend ◽  
Annual Production ◽  
Cereal Crops ◽  
Corn Production ◽  
Production Parameters ◽  
Slight Downward Trend

This paper deals with the production parameters of major cereal crops in Serbia (namely the cultivation area, annual production and yields of the cereal crops considered) in the period 2005-2018. The objective of this study was to determine trends in and the volume and stability of the production parameters of the most important cereal crops in Serbia. Furthermore, a forecast of changes in the parameters observed was made for the five-year period 2019-2023. The following cereal crops were under consideration: corn, wheat, barley, oats, rye and triticale. The area devoted to corn in Serbia was found to be very stable, indicating a slight downward trend. However, the Serbian corn production lacked stability due to variations in yield, suggesting a very slight downward trend. Wheat was found to be far more stable with slightly growing trends in all the parameters considered. Moreover, positive trends in all the parameters considered were also noticed in the Serbian triticale production.

scholarly journals A multiobjective DEA model to assess the eco-efficiency of major cereal crops production within the carbon and nitrogen footprint in China

2020 ◽  
Author(s):  
Zhongdu Chen ◽  
Chunchun Xu ◽  
Long Ji ◽  
fuping fang
Keyword(s):  
Crop Production ◽  
Management Practices ◽  
N Fertilizer ◽  
Environmental Cost ◽  
Cereal Crops ◽  
Staple Food ◽  
Food Crop ◽  
Corn Production ◽  
Impact Reduction ◽  
Food Crop Production

Abstract [Background]Agricultural production systems are facing the challenges of increasing food production while reducing environmental cost, particularly in China. Understanding the eco-efficiency of the staple food crop production contributes to sustainable agriculture. In this study, the eco-efficiency of rice, wheat and maize production within the carbon (C) footprints (CF) and nitrogen (N) footprint (NF) at a province scale based on 555 farm survey data from China was measured in which a combination of life cycle assessment (LCA) and data envelopment analysis (DEA) was used. [Results] The results showed that the synthetic N fertilizer applications and CH4 emissions dominated the CF of crop production, while NH3 volatilization was the main contributors to the NF in the grain crop production process. Based on DEA-based sustainability performance assessment results, the eco-efficiency of major cereal crops production were all found to be inefficient (eco-efficiency <1). An increase in yields had only limited effects on improvement in eco-efficiency of rice, wheat and corn production because the yield increase potential rates were very small (0.1~3.4%), and there were no significant differences in increase potentials of yields between provinces. From a perspective of environmental impact reduction potential rates, GWP (22.7~25.1%) was more important for the environmental mitigation target than Nr (10.9~17.9%) in rice production, but the opposite scenario appears in wheat and corn production. [Conclusions] Improving crop management practices by reducing N fertilizer use and adopting water-saving irrigation technology could be strategic options to mitigate climate change and eutrophication and improve the eco-efficiency of the staple food crop production in Chinese agriculture.

scholarly journals A multiobjective DEA model to assess the eco-efficiency of major cereal crops production within the carbon and nitrogen footprint in China

2020 ◽  
Author(s):  
zhongdu chen ◽  
chunchun xu ◽  
long ji ◽  
fuping fang
Keyword(s):  
Crop Production ◽  
Management Practices ◽  
N Fertilizer ◽  
Environmental Cost ◽  
Cereal Crops ◽  
Staple Food ◽  
Food Crop ◽  
Corn Production ◽  
Impact Reduction ◽  
Food Crop Production

Abstract Agricultural production systems are facing the challenges of increasing food production while reducing environmental cost, particularly in China. Understanding the eco-efficiency of the staple food crop production contributes to sustainable agriculture. In this study, the eco-efficiency of rice, wheat and maize production within the carbon (C) footprints (CF) and nitrogen (N) footprint (NF) at a province scale based on 555 farm survey data from China was measured in which a combination of life cycle assessment (LCA) and data envelopment analysis (DEA) was used. The results showed that the CF for the rice, wheat and maize was 0.87±0.32, 0.30± 0.11, and 0.24 ± 0.06 kg CO 2 -eq kg −1 year −1 at yield-scale, respectively. In addition, the NF was 17.11±7.73, 14.26±5.73, and 6.83±1.83 gN-eq kg −1 year −1 at yield-scale for the rice, wheat and maize, respectively. Synthetic N fertilizer applications and CH 4 emissions dominated the CF of crop production, while NH 3 volatilization was the main contributors to the NF in the grain crop production process. Based on DEA-based sustainability performance assessment results, the eco-efficiency of major cereal crops production were all found to be inefficient (eco-efficiency <1). An increase in yields had only limited effects on improvement in eco-efficiency of rice, wheat and corn production because the yield increase potential rates were very small (0.1~3.4%), and there were no significant differences in increase potentials of yields between provinces. From a perspective of environmental impact reduction potential rates, GWP (22.7~25.1%) was more important for the environmental mitigation target than Nr (10.9~17.9%) in rice production, but the opposite scenario appears in wheat and corn production. Improving crop management practices by reducing N fertilizer use and adopting water-saving irrigation technology could be strategic options to mitigate climate change and eutrophication and improve the eco-efficiency of the staple food crop production in Chinese agriculture.

scholarly journals INCOME SITUATION OF AGRICULTURAL HOLDINGS COVERED BY THE AGRICULTURAL ACCOUNTING SYSTEM (FADN) IN EUROPEAN UNION COUNTRIES

2018 ◽  
Vol 50 (4) ◽  
Author(s):  
Aleksander Grzelak
Keyword(s):  
European Union ◽  
Czech Republic ◽  
Downward Trend ◽  
Accounting System ◽  
Upward Trend ◽  
The Czech Republic ◽  
New Member States ◽  
Extensive System ◽  
European Union Countries ◽  
Slight Downward Trend

The main purpose of this research is to assess the income situation of agricultural holdings and identify the re- lated trends in EU-23 countries. As shown by surveys, the incomes followed an average moderate upward trend over the 2004–2015 period. The income situation of agricultural holdings was concluded to vary strongly across EU-23 coun- tries. Even though the existing extensive system of support stabilizes the level of incomes (and despite an increase in the level of subsidies), it does not eliminate the significant vari- ation. Simultaneously, it was noted that per-hectare incomes (less subsidies) followed a slight downward trend in 2004– 2015, which indicates once again the important contribution of subsidies to the income situation of agricultural holdings in EU countries. Agricultural holdings in “new” member states (except for the Czech Republic) achieve much lower incomes than EU-15 farms.

Formation of botanical composition of clover cereal and alfalfa cereal crops agrophytocenoses depending on sowing method

2020 ◽  
pp. 160-168
Author(s):  
I. Senyk
Keyword(s):  
Festuca Arundinacea ◽  
Global Climate ◽  
Phleum Pratense ◽  
Grass Species ◽  
Cereal Crops ◽  
Forest Steppe ◽  
Botanical Composition ◽  
Cross Sectional ◽  
Row Crops ◽  
Adverse Weather

Botanical composition of grasses is one of the most important indicators the biological value and quality of the obtained hay and pasture forage, the longevity of hayfi elds and pastures depend on. The issue of changing the botanical composition of agrophytocenoses is especially important in the context of global climate change, which in recent decades is also manifested in the territory of Ukraine, as it is possible to establish the most adapted species of legumes and cereals to adverse weather conditions and to identify eff ective technological methods of managing these processes for maximum conservation economically valuable species in the herbage. The purpose of the research is to establish the infl uence of diff erent ways of sowing of clover and alfalfa cereal crops agrophytocenoses on the formation of their botanical composition. Field studies have established diff erent eff ects of conventional in-line, cross-section and cross-sectional methods of sowing on the formation of botanical composition of grass mixtures of clover meadow (Trifolium pratense) varieties Sparta and Pavlyna with timothy meadow (Phleum pratense) and fenugreek multifl oral (Lolium multifl orum) and of agrophytocenoses of alfalfa of Sinyukha and Seraphima sowing varieties with reed fire (Festuca arundinacea Schreb) and middle wheatgrass (Elytrigia intermedia). For the average of four years of life of clover and alfalfa cereal crops agrophytocenoses, the highest proportion of legume component was observed with split-cross sowing – 51.6 % for Sparta, 53.1 % for Pavlyna, 60.3 % for Seraphima and 61.6 % for the Sinyukha variety. In the fourth year of life (the third year of use) of sowed leguminous-cereals agrophytocenoses, the preservation of the legume component was 14.6–15.5 % in clover-cereals grass mixtures with the Sparta variety and 16.0–16.8 % with the Pavlyna variety. In alfalfa grasslands, these indicators were 54.0–55.1 % with Seraphim and 55.0–56.2 % with Sinyukha. Among the studied varieties of clover meadow and alfalfa sowing proved better in the conditions of the Forest Steppe of western Pavlyna and Sinyukha. Cross-sectional and divided cross-sectional sowing of legumes and cereals mixtures proved to be better compared to conventional row crops in terms of conservation of economically valuable grass species. Key words: agrophytocenosis, botanical composition, clover meadow, alfalfa sowing, sowing methods.

THE PERFORMANCE OF 'GRASSLANDS MATUA' PRAIRIE GRASS IN THE SOUTHERN NORTH ISLAND

1977 ◽  
pp. 148-155
Author(s):  
G.J.Rys I.M. Ritchie ◽  
R.G. Smith ◽  
N.A. Thomson ◽  
G. Crouchley ◽  
W. Stiefel
Keyword(s):  
White Clover ◽  
Animal Health ◽  
Red Clover ◽  
Annual Production ◽  
Lower Yield ◽  
Prairie Grass

The performance of 'Grasslands Matua' prairie grass (Bromus catharticus) was compared with perennial ryegrasses under mowing or grazing in three trials conducted in the southern North Island. Production of Matua under mowing at Flock House and Waimate West was 13% and 19% greater than G.4708 and Nui ryegrass, respectively, with the extra production contributed in summer and winter. At Masterton no difference between Matua and Ariki ryegrass production occurred under grazing. A 31% increase in annual production was recorded for both Matua and G.4708 swards receiving N, compared with those sown with white clover, with the annual yield of G.4708 receiving N similar to Matua receiving no N. Less frequent defoliation increased production of Matua swards by 17% and the Matua component by 38%. Production of Nui in comparison with Matua swards was 14% lower under frequent and 9% lower under infrequent defoliation. Similar production was recorded from red clover under frequent, and infrequent defoliation for both Nui and Matua swards. A 48% lower yield of white clover occurred under infrequent defoliation of Matua swards. At Masterton a higher incidence of goitre in newborn lambs, accompanied by a 12% lower lamb liveweight at weaning, occurred on Matua- compared with Ariki-based swards. Aspects of seasonal production, fertility response, management, and animal health are discussed.

NATURAL REPRODUCTION OF ENTOMOPHAGES TO RESTORE BIOCENOTIC REGULATION IN CEREAL CROPS

2018 ◽  
Vol 53 (5) ◽  
pp. 1070-1079
Author(s):  
Zh.A. Shirinyan ◽  
◽  
M.V. Pushnya ◽  
E.Yu. Rodionova ◽  
E.G. Snesareva ◽  
...  
Keyword(s):  
Cereal Crops ◽  
Natural Reproduction
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