scholarly journals Agrivoltaic system impacts on microclimate and yield of different crops within an organic crop rotation in a temperate climate

2021 ◽  
Vol 41 (5) ◽  
Author(s):  
Axel Weselek ◽  
Andrea Bauerle ◽  
Jens Hartung ◽  
Sabine Zikeli ◽  
Iris Lewandowski ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Crop Rotation ◽  
Crop Production ◽  
Reference Site ◽  
Crop Yields ◽  
West Germany ◽  
Temperate Climate ◽  
Agricultural Crops ◽  
Solar Panels ◽  
Microclimatic Conditions

AbstractAgrivoltaic (AV) systems integrate the production of agricultural crops and electric power on the same land area through the installation of solar panels several meters above the soil surface. It has been demonstrated that AV can increase land productivity and contribute to the expansion of renewable energy production. Its utilization is expected to affect crop production by altering microclimatic conditions but has so far hardly been investigated. The present study aimed to determine for the first time how changes in microclimatic conditions through AV affect selected agricultural crops within an organic crop rotation. For this purpose, an AV research plant was installed near Lake Constance in south-west Germany in 2016. A field experiment was established with four crops (celeriac, winter wheat, potato and grass-clover) cultivated both underneath the AV system and on an adjacent reference site without solar panels. Microclimatic parameters, crop development and harvestable yields were monitored in 2017 and 2018. Overall, an alteration in microclimatic conditions and crop production under AV was confirmed. Photosynthetic active radiation was on average reduced by about 30% under AV. During summertime, soil temperature was decreased under AV in both years. Furthermore, reduced soil moisture and air temperatures as well as an altered rain distribution have been found under AV. In both years, plant height of all crops was increased under AV. In 2017 and 2018, yield ranges of the crops cultivated under AV compared to the reference site were −19 to +3% for winter wheat, −20 to +11% for potato and −8 to −5% for grass-clover. In the hot, dry summer 2018, crop yields of winter wheat and potato were increased by AV by 2.7% and 11%, respectively. These findings show that yield reductions under AV are likely, but under hot and dry weather conditions, growing conditions can become favorable.

scholarly journals Trends of weather-related impacts on Austrian crop production under changing climate

2021 ◽  
Author(s):  
Sabina Thaler ◽  
Josef Eitzinger ◽  
Gerhard Kubu
Keyword(s):  
Climate Change ◽  
Winter Wheat ◽  
Crop Production ◽  
Crop Yields ◽  
Weather Conditions ◽  
Crop Growth ◽  
Risk Indicators ◽  
Climate Scenarios ◽  
Crop Water

<p>Weather-related risks can affect crop growth and yield potentials directly (e.g. heat, frost, drought) and indirectly (e.g. through biotic factors such as pests). Due to climate change, severe shifts of cropping risks may occur, where farmers need to adapt effectively and in time to increase the resilience of existing cropping systems. For example, since the early 21st century, Europe has experienced a series of exceptionally dry and warmer than usual weather conditions (2003, 2012, 2013, 2015, 2018) which led to severe droughts with devastating impacts in agriculture on crop yields and pasture productivity.</p><p>Austria has experienced above-average warming in the period since 1880. While the global average surface temperature has increased by almost 1°C, the warming in Austria during this period was nearly 2°C. Higher temperatures, changing precipitation patterns and more severe and frequent extreme weather events will significantly affect weather-sensitive sectors, especially agriculture. Therefore, the development of sound adaptation and mitigation strategies towards a "climate-intelligent agriculture" is crucial to improve the resilience of agricultural systems to climate change and increased climate variability. Within the project AGROFORECAST a set of weather-related risk indicators and tailored recommendations for optimizing crop management options are developed and tested for various forecast or prediction lead times (short term management: 10 days - 6 months; long term strategic planning: climate scenarios) to better inform farmers of upcoming weather and climate challenges.</p><p>Here we present trends of various types of long-term weather-related impacts on Austrian crop production under past (1980-2020) and future periods (2035-2065). For that purpose, agro-climatic risk indicators and crop production indicators are determined in selected case study regions with the help of models. We use for the past period Austrian gridded weather data set (INCA) as well as different regionalized climate scenarios of the Austrian Climate Change Projections ÖKS15. The calculation of the agro-climatic indicators is carried out by the existing AGRICLIM model and the GIS-based ARIS software, which was developed for estimating the impact of adverse weather conditions on crops. The crop growth model AQUACROP is used for analysing soil-crop water balance parameters, crop yields and future crop water demand.</p><p>Depending on the climatic region, a more or less clear shift in the various agro-climatic indices can be expected towards 2050, e.g. the number of "heat-stress-days" for winter wheat increases significantly in eastern Austria. Furthermore, a decreasing trend in maize yield is simulated, whereas a mean increase in yield of spring barley and winter wheat can be expected under selected scenarios. Other agro-climatic risk indicators analysed include pest algorithms, risks from frost occurrence, overwintering conditions, climatic crop growing conditions, field workability and others, which can add additional impacts on crop yield variability, not considered by crop models.</p>

Agroresource potential and rationale for irrigation North-Central Steppe of Ukraine

2016 ◽  
Vol 1 (90) ◽  
pp. 71-76
Author(s):  
Y. Soroka ◽  
Y.A. Tarariko ◽  
R.V. Saydak
Keyword(s):  
Crop Rotation ◽  
Crop Production ◽  
Crop Yields ◽  
Climatic Conditions ◽  
Hydrothermal Conditions ◽  
North Central ◽  
Intensive Farming ◽  
Phosphorus And Potassium ◽  
Major Factors ◽  
The Impact

The purpose of research - a comprehensive assessment of the potential agroresource North-Central Steppe of Ukraine, set limitipuyuschie factors to improve the productivity of agriculture. During the robot conventional research methods were used: field, laboratory, analytical, comparative, kompyuternoy simulation modeling, and system generalization of the results. Experiental part held in a stationary field experiment Zaporozhye experimental station Of Institute oil culture NAAS Studies have shown that the systematic application of fertilizers on a range of agro, chemical, physical, agrohimichesih indicators studied soil has Visokiy potential fertility. Surfacing Systems of soil on crop rotation productivity impact is immaterial. One can only note the trend for the most minor ways of loosening the soil with mulch. The test crop rotation composition simulates one of the most intensive farming options. Indicators of productivity and the variation coefficient of variation it indicates a fairly low level of realization of the potential fertility of chernozem ordinary, which is explained on the one hand, the steady downward trend in the annual water balance, on the other hand, promotion of a balance of humus, nitrogen, phosphorus and potassium fertilizers at the studied systems. The dependence of the yield of the agro-climatic conditions considered by the example of the main cereal region - winter wheat. It was found that the greatest impact on the implementation of crop production potential are hydrothermal conditions of May - June. Analysis of the results of research allowed to evaluate the potential agroresource North Steppe and to establish the impact of the major factors in the formation of crop yields. Irrigation in this zone is the most important factor for improving productivity of crops, and its implementation in 70% of rotations may increase the productivity of not less than 1.8 times.

OPTIMIZATION OF THE SOWN AREAS STRUCTURE FOR THE STEPPE ZONE OF RSO – ALANIA

2020 ◽  
Vol 15 (7) ◽  
pp. 905-912
Author(s):  
D.M. Mamiev ◽  
Keyword(s):  
Soil Fertility ◽  
Crop Rotation ◽  
Crop Production ◽  
Arable Land ◽  
Steppe Zone ◽  
Farming System ◽  
Climatic Conditions ◽  
Agricultural Landscapes ◽  
Soil Protection ◽  
Agricultural Crops

The structure of the cultivated areas serves as the basis for the system of crop rotation, the main link in modern farming systems. The structure of sown areas and the system of crop rotations as the fundamental links of the farming system have close direct correlations and feed-backs with all other links of the farming system. On the one hand, they are fundamental, first of all, for organizing the soil protection and nature conservation of the territory, since in each farm the sown areas of agricultural crops on arable land prevail over the area of other agricultural lands. On the other hand, the system of crop rotation, which is developed on the basis of the promising structure of sown areas, is the basis for other links of the farming system. For more efficient use of arable land, increasing the yield of major agricultural crops, meeting the needs of farms with crop production, improving soil fertility, it is necessary to change the structure of sown areas taking into account the specific agro-climatic conditions of the steppe zone. There are two subzones in the considered zone: arid and moderately arid one. We have substantiated and optimized the structure of cultivated areas in order to increase soil fertility, ecological balance and productivity of agricultural landscapes for these two sub-zones of the steppe zone. For the arid sub-zone, in the structure of sown areas, winter and spring crops should occupy 51.7%, legumes – 9.8%, fodder – 12.5%, industrial – 21%, vegetables – 5%. For the moderately arid sub-zone in the structure of sown areas, winter and spring crops should occupy 42.0%, legumes – 10.3%, corn for grain – 13.7%, fodder – 10.5%, industrial – 17.0%, vegetables – 5%, potatoes – 1.5%.

SUSTAINABLE RYE PRODUCTION IN THE WESTSIK CROP ROTATION EXPERIMENT

2000 ◽  
Vol 48 (3) ◽  
pp. 271-277 ◽  
Author(s):  
J. Lazányi
Keyword(s):  
Crop Rotation ◽  
Agricultural Production ◽  
Crop Production ◽  
Nutrient Management ◽  
Crop Yields ◽  
Cropping Systems ◽  
Continuous Production ◽  
Farmyard Manure ◽  
Scientific Basis ◽  
Ecological Requirements

The best-known and most remarkable example of continuous production in Hungary is the Westsik crop rotation experiment established in 1929. It is still in use to study the effects of organic manure treatment, to develop models and to predict the likely effects of different cropping systems on soil properties and crop yields. In this respect, the Westsik crop rotation experiment provides data of immediate value to farmers concerning the application of green manure, straw and farmyard manure. The increased demand for food and changes in the ecological requirements of agricultural production have urged scientists to revise the widely used traditional principles and to develop alternative crop production practices. In this respect, they must strive for the adoption of technologies which serve for the simultaneous maintenance of production levels, soil fertility and environmental goals. The Westsik crop rotation experiment provides useful help and a thorough scientific basis for the solution of this problem. It models various possible methods of nutrient management and assists in answering questions on the sustainability of agricultural production. Since 1929, only minor changes have been introduced in some treatments. These changes have made the classical experiment more relevant to current research needs and farming practices.

scholarly journals Legumes crop rotation can improve food and nutrition security in Nepal

2013 ◽  
Vol 3 ◽  
pp. 123-127 ◽  
Author(s):  
S Pokhrel ◽  
S Pokhrel
Keyword(s):  
Soil Erosion ◽  
Crop Rotation ◽  
Food Production ◽  
Crop Production ◽  
Crop Yields ◽  
Nutrition Security ◽  
Long Run ◽  
Cost Controls ◽  
Food And Nutrition ◽  
The Impact

An intensive review of the literatures was made to access the importance of crop rotation for sustainable agriculture in Nepal. Result shows that an appropriate crop sequences improves soil fertility, reduces fertilizer cost, controls soil erosion, makes environment healthy, increases crop yields and develop sustainable crop production in the long run. Based on the study, identification of location specific crop sequences, their extension and evaluation of the impact on food production are recommended. Agronomy Journal of Nepal (Agron JN) Vol. 3. 2013, Page 123-127 DOI: http://dx.doi.org/10.3126/ajn.v3i0.9014

scholarly journals EFFECTIVENESS OF BIOLOGIZATION TECHNIQUES IN LINKS OF CROP ROTATIONS WITH WINTER WHEAT IN THE FOREST-STEPPE ZONE OF THE VOLGA REGION

2020 ◽  
pp. 54-62
Author(s):  
А. L Toygildin ◽  
◽  
V. I. Morozov ◽  
М. I. Podsevalov ◽  
D.E. Ayupov ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Crop Rotation ◽  
Crop Production ◽  
Steppe Zone ◽  
Grain Legumes ◽  
Crop Rotations ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Fertilizer System

The performance of the set tasks for the production of the necessary volumes of grain is possible only on the basis of a scientific-based approach to the development of agricultural technologies on a systematic basis. Research aim: to evaluate the effectiveness of methods of biologization of crop rotation links with winter wheat at the expense of grain legumes and organomineral fertilizer systems in conditions of forest-steppe zone of the Volga region. The research was carried out in years long stationary field trial of the department of agriculture, crop production and breeding of FSBEI HE Ulyanovsk SAU in 4-6-month field crop rotations. The objects of study were of crop rotation links with winter wheat: 1) complete fallow-winter wheat; 2) peas - winter wheat; 3) Lupin - winter wheat; 4) Lupin + peas - winter wheat. In the structure of land use, there is still a high share of complete fallow, which has negative environmental consequences. The main reason for the introduction of complete fallows is the preservation of moisture for seeding winter crops. However, our research shows that when replacing complete fallows to grain legumes (peas, white lupine), 23.0-25.0 mm of productive moisture accumulates in the soil before seeding winter wheat, which, if agrotechnical requirements are met, allows you to get seedlings and sufficient development of winter wheat in the autumn period. Despite the higher yield of winter wheat by complete fallow, the productivity of links with legumes was higher. The inclusion of grain legumes in crop rotations as steam-generating crops can be used to eliminate the negative effects of complete fallow. The results obtained allow us to recommend combined tillage that includes soil loosening for grain legumes and surface tillage for winter wheat, as well as to use the organomineral fertilizer system straw + NPK, while the doses of mineral fertilizers are calculated on the planned yield of grain legumes of 2.5-3.0 t/ha and winter wheat - 4.5 t/ha.

scholarly journals THE ROLE OF BIOLOGICALLY ACTIVE PREPARATIONS IN INCREASING PRODUCTIVITY OF AGROCULTURES

2021 ◽  
pp. 30-39
Author(s):  
О.В. ЛУКЬЯНОВА ◽  
Н.В. ВАВИЛОВА ◽  
Д.В. ВИНОГРАДОВ ◽  
А.С. СТУПИН ◽  
А.А. СОКОЛОВ
Keyword(s):  
Winter Wheat ◽  
Crop Production ◽  
Field Experiments ◽  
Biologically Active ◽  
Cultivated Plants ◽  
Federal State ◽  
Agricultural Crops ◽  
Biological Potential ◽  
The Impact

Проблема и цель. Реализация биологического потенциала агрокультур при производстве продукции растениеводства в условиях неустойчивого земледелия. Цель исследований – изучить влияние комплексных препаратов, содержащих важнейшие макро- и микроэлементы, биологически активныевещества, на урожайность и качество продукции сельскохозяйственных культур. Методология. Объектами исследования в полевых опытах были регуляторы роста растений ОРГАНОСТИМ, Зеребро Агро и минеральное удобрение Грогрин микро марка: Дрип. Полевые опыты были заложены методом организованных повторений в четырехкратной повторности. Размер опытных делянок в опытах составлял 50-100 м2 , учетная площадь – 25-50 м2 . В ходе исследований отбирались образцы серой лесной тяжелосуглинистой почвы и растительных образцов сои, озимой пшеницы, картофеля, анализ которых проводили в ФГБУ «Станция агрохимической службы «Рязанская» и ФГБОУ ВО «Рязанский государственный агротехнологический университет имени П.А. Костычева» согласно общепринятым методикам. Для оценки существенности полученных в опыте результатов осуществлялась математическая обработка урожайных и сопутствующих данных. Результаты. Результаты полевых исследований показывают, что применение биологически активных соединений на разных этапах онтогенеза способствовало усилению процессов роста и развития культурных растений и повышению сопротивляемости негативному воздействию внешней среды. Вследствие этого агрокультуры, в зависимости от варианта опыта, формировали более развитую корневую систему, вегетативные и генеративные органы, что обеспечило существенное повышение урожайности сои на 2,4-3,2 ц/га (НСР05 = 1,97 ц/га), озимой пшеницы на 3,7-5,5 ц/га (НСР05 = 2,9 ц/га), картофеля на 3,34 т/га (НСР05 = 2,91 т/га) с сохранением качества полученного урожая. Заключение. Научно-обоснованное применение биологически активных веществ оказывает стимулирующие воздействие на культурные растения, активизируя физиологические процессы на всех этапах их жизненного цикла, от прорастания семян до уборки, существенно повышая урожайность агрокультур. Оптимизация питания растений повышает их устойчивость к возбудителям болезней сельскохозяйственных культур, нивелирует воздействие неблагоприятных факторов окружающей среды, благоприятно отражается на показателях качества растениеводческой продукции. Problem and purpose. Realization of the biological potential of agricultural crops in the production of crop products in conditions of unsustainable agriculture. The purpose of research is to study the infuence of complex preparations containing the most important macro-and microelements, biologically active substance on the yield and quality of agricultural crops. Methodology. The objects of study in feld experiments were plant growth regulators ORGANOSTIM, Zerebro Agro and mineral fertilizer Grogrin mikro marka: Drip. Field experiments laid down method organized repetitions in 4-fold repetition. The size of the experimental business experiments was 50-100 m², the accounting area was 25-50 m². During the studies, samples of gray forest heavy-grained soil and plant samples of soybeans, winter wheat, potatoes were taken, the analysis of which was carried out by the Federal State Budgetary Institution "Station of the Agricultural Chemical Service" Ryazan "and FSBEI HE " Ryazan State Agrotechnological University”. To assess the materiality of the results obtained in the experience, mathematical processing of crop and related data was carried out. Results. The results of feld studies show that the use of biologically active compounds at diferent stages of ontogenesis contributed to the strengthening of the processes of growth and development of cultivated plants and increased resistance to negative environmental efects. As a result, agricultures, depending on the experience variant, formed a more developed root system, vegetative and generative organs, which ensured a signifcant increase in soybean yield by 2.4-3.2 c/ha (NSR05 = 1.97 c/ha), 3.7-5.5 c/ha (NSR05 = 2.9 c/ha) on winter wheat, 3.34 t/ha (NSR05 = 2.91 t) on potatoes, with maintaining the quality of the harvest. Conclusion. Science-based use of biologically active substances has stimulating efects on cultivated plants. Activating physiological processes at all stages of their life cycle, from seed germination to harvesting, signifcantly increase the yield of agricultural crops. Optimization of plant nutrition increases their resistance to pathogens of crop diseases, eliminates the impact of adverse environmental factors, and favorably afects the quality indicators of crop production.

scholarly journals Effects of Bias-Corrected Regional Climate Projections and Their Spatial Resolutions on Crop Model Results under Different Climatic and Soil Conditions in Austria

Agriculture ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1029
Author(s):  
Sabina Thaler ◽  
Herbert Formayer ◽  
Gerhard Kubu ◽  
Miroslav Trnka ◽  
Josef Eitzinger
Keyword(s):  
Winter Wheat ◽  
Crop Production ◽  
Crop Yields ◽  
Spatial Scales ◽  
Spring Barley ◽  
Crop Model ◽  
Soil Water Storage ◽  
Soil Conditions ◽  
Climate Projections ◽  
Climate Conditions

The quality, reliability, and uncertainty of Austrian climate projections (ÖKS15) and their impacts on the results of the crop model DSSAT for three different orographic and climatic agricultural regions in Austria were analyzed. Cultivar-specific grain yields of winter wheat, spring barley, and maize were simulated for different soil classes to address three main objectives. First, the uncertainties of simulated crop yields related to the ÖKS15 projections were analyzed under current climate conditions. The climate projections revealed that the case study regions with higher humidity levels generally had lower yield deviations than the drier regions (yield deviations from −19% to +15%). Regarding the simulated crop types, spring barley was found to be less sensitive to the climate projections than rainfed maize, and the response was greater in regions with a low soil water storage capacity. The second objective was to simulate crop yields for the same cultivars using future climate projections. Winter wheat and spring barley tended to show increased yields by the end of the century due to an assumed CO2-fertilization effect in the range of 3–23%, especially under RCP 8.5. However, rainfed and irrigated maize were associated with up to 17% yield reductions in all three study regions due to a shortened growth period caused by warming. The third objective addressed the effects of crop model weather input data with different spatial resolutions (1 vs. 5, 11, and 21 km) on simulated crop yields using the climate projections. Irrigated grain maize and rainfed spring barley had the lowest simulated yield deviations between the spatial scales applied due to their better water supply conditions. The ranges of uncertainty revealed by the different analyses suggest that impact models should be tested with site representative conditions before being applied to develop site-specific adaptation options for Austrian crop production.

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