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Artykuły w czasopismach na temat „Cropping seasons”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

PRIYADARSHINI, Devi, and Pravati Kumari MAHAPATRA. "Effect of abiotic factors and seasonal influence on spider diversity in rice agroecosystem of Bargarh District, Odisha, India." Nova Geodesia 3, no. 4 (2023): 146. http://dx.doi.org/10.55779/ng34146.

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Spiders are generalist predators which have been found to benefit paddy crops as biological control agents. The present study was taken up at Bargarh district of Odisha, India to study and compare the spider diversity in the two cropping seasons with effect of abiotic factors on species abundance in rice lands. The observations were made across two cropping seasons during Rabi and Kharif cropping seasons to assess the seasonal influence on spider population. Seventeen families of spiders were recorded during the study out of which Rabi cropping season recorded 17 families, while Kharif season

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Omeje, T. E., S. U. Awere, and K. I. Ugwuoke. "Effect of fungicides and spray regimes against Phytophthora leaf blight disease of taro cultivars in Nsukka, Southeastern Nigeria." Agro-Science 21, no. 2 (2022): 111–20. http://dx.doi.org/10.4314/as.v21i2.13.

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Effects of fungicide types and spray regimes were assessed on Phytophthora leaf blight disease during the early and late cropping seasons in Nsukka, southeastern Nigeria. The field experiment was laid out in 3 × 3 × 5 factorial in randomized complete block design with three replications in early and late cropping seasons of taro, respectively. The factors consisted of three Colocasia esculenta cultivars (Nachi (purple taro/Nce003), Odogolo (green taro/Nce002) and Ugwuta (Coco-India/Nce001); two fungicides (Ridomil Gold 66 WP plus, Ridomil Gold + Champ Drill Prill 50.00%:50.00% mixture and cont

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Oluwaranti, A., M. A. B. Fakorede, and B. Badu-Apraku. "Grain yield of maize varieties of different maturity groups under marginal rainfall conditions." Journal of Agricultural Sciences, Belgrade 53, no. 3 (2008): 183–91. http://dx.doi.org/10.2298/jas0803183o.

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This study was conducted to evaluate the yield performance of different maturity groups of maize varieties at different planting dates under the marginal rainfall conditions of the rainforest ecology of Nigeria and identify the high yielding ones. The maize varieties were evaluated on five and three different planting dates in 2001 and 2005 late cropping seasons respectively. Seven planting dates were used in 2002 and 2006 early cropping seasons. All plantings were done at a weekly interval. Data were obtained on grain yield and yield components. Grain yield and yield components decreased as p

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Ferrreira, Francisco E. P., and Vicente de P. R. da Silva. "Calibration and validation of AquaCrop model for cowpea crop under water stress." Revista Brasileira de Engenharia Agrícola e Ambiental 27, no. 2 (2023): 83–91. http://dx.doi.org/10.1590/1807-1929/agriambi.v27n2p83-91.

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ABSTRACT Cowpea is a legume crop cultivated in diversified production systems, under different conditions of climate, soil, cultivars and technological level. Although the crop is resistant to water stress, lack of moisture in the soil profile during its reproductive stage causes significant losses in its yield. The objective of this study was to calibrate and evaluate the AquaCrop model in the simulation of cowpea yield under water stress in two cropping seasons (rainy and dry) under no-tillage system condition. Experiments were carried out in two cropping seasons (rainy and dry) with five fo

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Ho, Phuc Trong, Pham Xuan Hung, and Nguyen Duc Tien. "Effects of varieties and seasons on cost efficiency in rice farming: A stochastic metafrontier approach." Asian Journal of Agriculture and Rural Development 13, no. 2 (2023): 120–29. http://dx.doi.org/10.55493/5005.v13i2.4778.

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Rice production costs vary substantially across rice varieties and cropping seasons; however, the effects of rice varieties and cropping seasons on the cost efficiency of rice farming have not been given much attention by researchers. In this paper, we attempt to examine these effects on the cost efficiency of rice production in Vietnam. We use a stochastic metafrontier approach to compare the cost efficiency of rice production between two rice variety groups (a high-quality rice variety and a conventional rice variety group) and three cropping seasons (Winter-Spring, Summer-Autumn, and Autumn

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David, Kamei. "Effect of selected fungicides on Brown spot disease of rice caused by Helminthosporium oryzae." International Journal of Environmental and Agriculture Research 7, no. 9 (2021): 57–61. https://doi.org/10.5281/zenodo.5536906.

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<strong>Abstract</strong><strong>—</strong> The in-vitro test of selected fungicides against brown spot disease incidence of rice and development of a disease prediction model base on weather variable was conducted during two Kharif seasons from 2014-2015 to 2015-2016. Results revealed that among the selected fungicides treatment lowest per cent disease incidence was found in Propiconazole in both the cropping season (2014-15) and (2015-16) with minimum mean per cent disease index (PDI) value bcd (7.76) and (7.03) with per cent disease control of 72.39 and 73.09 respectively over the con

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Kitavi, Everlyne Katilo, Charles Kimani Ndung’u, and Moses Mwangi. "Temporal variation in soil quality and carbon sequestration potential of different cropping systems in Arid and Semi-Arid parts of South Eastern Kenya." East African Journal of Agriculture and Biotechnology 7, no. 2 (2024): 221–34. https://doi.org/10.37284/eajab.7.2.2532.

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The use of incorrect agricultural methods and utilization of land, excessive inorganic chemical applications, misguided cultivation, and nutrient mining have all contributed to a considerable deterioration in soil health globally. To meet the requirements of growing inhabitants, farmers have turned to unsustainable methods including monoculture, excessive use of pesticides and fertilizers, and increased agricultural intensification. A study to determine the seasonal variation of soil quality under different cropping systems and carbon sequestration potential was done during the years 2018 and

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Irawan, Amalia Nafisah Rahmani, and Daisuke Komori. "Beyond Fixed Dates and Coarse Resolution: Developing a Dynamic Dry Season Crop Calendar for Paddy in Indonesia from 2001 to 2021." Agronomy 14, no. 3 (2024): 564. http://dx.doi.org/10.3390/agronomy14030564.

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There is valuable information that can be obtained beyond using a fixed crop calendar with coarse spatial resolution. Knowing the dynamics of the timing and location in which a particular crop is planted and harvested, with an annual temporal resolution and a fine spatial resolution, is crucial not only for monitoring crop conditions and production but also for understanding crop management under changing climates. In this study, the Normalized Difference Vegetation Index (NDVI) was utilized to develop a historical crop calendar for paddy in Indonesia with a 1 km resolution from 2001 to 2021.

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KIHARA, J., A. BATIONO, B. WASWA, et al. "EFFECT OF REDUCED TILLAGE AND MINERAL FERTILIZER APPLICATION ON MAIZE AND SOYBEAN PRODUCTIVITY." Experimental Agriculture 48, no. 2 (2011): 159–75. http://dx.doi.org/10.1017/s0014479711000895.

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SUMMARYReduced tillage is said to be one of the potential ways to reverse land degradation and ultimately increase the productivity of degrading soils of Africa. We hypothesised that crop yield following a modest application of 2 t ha−1 of crop residue in a reduced tillage system is similar to the yield obtained from a conventional tillage system, and that incorporation of legumes in a cropping system leads to greater economic benefits as opposed to a cropping system involving continuous maize. Three cropping systems (continuous maize monocropping, legume/maize intercropping and rotation) unde

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Paulo Ferreira, Francisco Edson, and Vicente de Paulo Rodrigues da Silva. "WATER DEMAND AND TECHNICAL-ECONOMIC VIABILITY OF COWPEA GROWN IN DIFFERENT PRODUCTION SCENARIOS." Nativa 10, no. 4 (2022): 577–84. http://dx.doi.org/10.31413/nativa.v10i4.13820.

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Water demand and agronomic and economic efficiency of cowpea are strongly related to agricultural practices and climatic conditions. This study aimed to determine in which cropping season cowpea has the highest water demand and maximum agronomic and economic efficiency as a function of water stress under the edaphoclimatic conditions of the semi-arid region of northeastern Brazil. Cowpea was cultivated in two cropping seasons (rainy and dry) and subjected to five forms of water stress (without water stress, water suspension for 5, 10 and 15 days and rainfed cultivation) and four replicates, st

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Philippine Journal of Crop Science, Pablito M. Magdalita, Noribelle A. Salibad, and Edna A. Aguilar. "Papaya-mungbean intercropping: Effect of season and different row spacing on the growth and yield performance of mungbean (Vigna radiata L.) intercrop to papaya (Carica papaya L.)." Philippine Journal of Crop Science 50, no. 1 (2025): 41–48. https://doi.org/10.63568/pjcs.v50i1.1406.

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The study was conducted to determine the productivity of papaya-mungbean intercropping as influenced by season and row spacing, while the cropping system was evaluated using multiple cropping index and partial budget analysis. Papaya was intercropped at wet and dry season with mungbean planted at different row spacing of 1.0 m, 0.75 m, and 0.50 m. Significant difference between the wet and dry seasons’ effect in terms of plant height, pod length, number of pods per plant and total yield of mungbean intercropped to papaya was observed. However, when the three-row spacing was assessed individual

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Picoli, Michelle C. A., Rubens A. C. Lamparelli, Edson E. Sano, and Jansle V. Rocha. "The use of ALOS/PALSAR data for estimating sugarcane productivity." Engenharia Agrícola 34, no. 6 (2014): 1245–55. http://dx.doi.org/10.1590/s0100-69162014000600019.

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Some models have been developed using agrometeorological and remote sensing data to estimate agriculture production. However, it is expected that the use of SAR images can improve their performance. The main objective of this study was to estimate the sugarcane production using a multiple linear regression model which considers agronomic data and ALOS/PALSAR images obtained from 2007/08, 2008/09 and 2009/10 cropping seasons. The performance of models was evaluated by coefficient of determination, t-test, Willmott agreement index (d), random error and standard error. The model was able to expla

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S. MAITI, M. SAHA, H. BANERJEE, and S. PAL. "Integrated nutrient management under hybrid rice-(Oryza sativa) hybrid rice cropping sequence." Indian Journal of Agronomy 51, no. 3 (2001): 157–59. http://dx.doi.org/10.59797/ija.v51i3.4997.

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A field experiment was conducted during both rainy (kharif) (2002 and 2003) and summer (boro) seasons (2003 and 2004) at the Regional Research Station, New Alluvial Zone, to study the effect of organic and inor- , ganic sources of plant nutrients applied singly and in combination on rainy season hybrid rice (Oryza sativa L.) , and their residual effect on the succeeding summer season hybrid rice, receiving recommended doses of fertiliz- ers. Growth attributes, yield components and grain yields increased with the increase in doses of chemical fertil- izers alone as well as in combination with 5

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Sangakkara, U., and P. Stamp. "Impact of improved fallow periods on soil properties and productivity of maize ( Zea mays L.) in major and minor seasons of Asian humid tropics." Acta Agronomica Hungarica 56, no. 3 (2008): 303–12. http://dx.doi.org/10.1556/aagr.56.2008.3.6.

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Improved fallows are considered an easy, low cost and suitable method of increasing the productivity and sustainability of smallholder tropical rainfed cropping systems, although most farmers allow weeds to grow when the environmental conditions are not conductive for crop production. Field studies were carried out over the minor and major seasons, to evaluate the impact of a preceding improved fallow using Crotalaria or Tithonia , two popular tropical green manures, on selected soil properties, and on the growth and yield of maize. Improved fallows enhanced chemical soil properties significan

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Jaenudin, Amran, E. Tadjudin, Meilina Parsetyo, and Maryuliyanna Maryuliyanna. "PRODUKTIVITAS PADI PADA MUSIM PENGHUJAN DAN MUSIM KEMARAU DI WILAYAH DESA CIREBON GIRANG (Rice Productivity in The Rainy and Dry Seasons in The Cirebon Village Area)." Agroswagati Jurnal Agronomi 8, no. 1 (2020): 1. http://dx.doi.org/10.33603/agroswagati.v8i1.4048.

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This research aims to determine the appropriate rice cultivation and cropping patterns in the rainy and dry seasons and to find out the analysis of rice farming in the rainy and dry seasons. The time of the research is from January to April 2019. The research location was in the village of Cirebon Girang, Talun District, Cirebon. The method used in this research is descriptive qualitative. The results showed that rice cultivation in the rainy and dry seasons experienced differences especially in fertilization, different plant disturbing organisms, different cropping patterns from the two farme

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ALLACHE, Farid, and Fatma DEMNATI. "Monitoring and population changes of Tuta absoluta (Meyrick, 1917) on tomato under greenhouse conditions in an arid expanse of south-eastern Algeria." Acta agriculturae Slovenica 115, no. 2 (2020): 409. http://dx.doi.org/10.14720/aas.2020.115.2.324.

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<p>The population changes of <em>Tuta absoluta</em> was surveyed during three growing seasons in greenhouse tomatoes in Biskra. Introduced in 2009 for the first time, it seems to be well established on tomato crops in Biskra; while their natural enemies remained lacking, due possibly to pesticides overuse. All pest stages were present on tomato plants during the three cropping seasons. Important numbers of males were captured during the first growing season and the least during the third growing season. The first adults’ flight spread out between October and December. Adults’

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Nkwasa, Albert, Celray James Chawanda, Jonas Jägermeyr, and Ann van Griensven. "Improved representation of agricultural land use and crop management for large-scale hydrological impact simulation in Africa using SWAT+." Hydrology and Earth System Sciences 26, no. 1 (2022): 71–89. http://dx.doi.org/10.5194/hess-26-71-2022.

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Abstract. To date, most regional and global hydrological models either ignore the representation of cropland or consider crop cultivation in a simplistic way or in abstract terms without any management practices. Yet, the water balance of cultivated areas is strongly influenced by applied management practices (e.g. planting, irrigation, fertilization, and harvesting). The SWAT+ (Soil and Water Assessment Tool) model represents agricultural land by default in a generic way, where the start of the cropping season is driven by accumulated heat units. However, this approach does not work for tropi

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Whitbread, A. M., C. W. Davoren, V. V. S. R. Gupta, R. Llewellyn, and the late D. Roget. "Long-term cropping system studies support intensive and responsive cropping systems in the low-rainfall Australian Mallee." Crop and Pasture Science 66, no. 6 (2015): 553. http://dx.doi.org/10.1071/cp14136.

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Continuous-cropping systems based on no-till and crop residue retention have been widely adopted across the low-rainfall cereal belt in southern Australia in the last decade to manage climate risk and wind erosion. This paper reports on two long-term field experiments that were established in the late 1990s on texturally different soil types at a time of uncertainty about the profitability of continuous-cropping rotations in low-rainfall environments. Continuous-cereal systems significantly outyielded the traditional pasture–wheat systems in five of the 11 seasons at Waikerie (light-textured s

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Asare-Bediako, Elvis, KJ Taah, GC van der Puije, et al. "Phenotypic and molecular evaluation of maize (Zea may L.) genotypes under field conditions in the Volta region of Ghana." African Journal of Food, Agriculture, Nutrition and Development 20, no. 07 (2020): 16884–904. http://dx.doi.org/10.18697/ajfand.95.19040.

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Maize streak disease (MSD) is the most devastating and destructive disease of maize (Zea maysL.) in sub-Saharan Africa (SSA). Field trials were conducted in the 2014 minor and 2015 major cropping seasons to screen 16 and 17 maize genotypes, respectively, for high yield and resistance to maize streak virus (MSV) infections. The plants were scored for disease severity at 4, 6, 8 and 10 weeks after planting (WAP) based on a 1-5 visual scale (1=No infection and 5=Very severe infection). Polymerase chain reaction (PCR) test was done to detect the presence of MSV in the diseased leaf samples in orde

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Luo, Haowen, Simin Zhang, Xiaojuan Pu, et al. "Effects of Selenium Nanoparticle Application on Flavor Volatiles of Aromatic Rice." Foods 14, no. 4 (2025): 552. https://doi.org/10.3390/foods14040552.

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Aromatic rice is famous for its pleasant aroma which consists of many flavor volatiles. The present study was to explore the effects of selenium nanoparticle (SeNP) application on flavor volatiles of aromatic rice based on a worldwide database of flavor molecules accessed on November 19 2024. A field experiment was carried out with the foliar application of SeNP at early growth stage (S1), middle growth stage (S2), and late growth stage (S3) of aromatic rice plants in two cropping seasons. In the control group (CK), no selenium-based treatment was applied. There were in total 27 and 24 flavor

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Silva, Kathia Maria Barbosa e., Francisco Aécio Guedes Almeida, and Paulo Sérgio Lima e. Silva. "Peduncle and fruit yield, in six cropping seasons, of early dwarf cashew tree clones irrigated with different water regimes." Revista Brasileira de Fruticultura 26, no. 3 (2004): 474–77. http://dx.doi.org/10.1590/s0100-29452004000300024.

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The objective of this work was to evaluate peduncle and fruit yield in clone MS 076 and in a clonal population of drip-irrigated, early dwarf cashew trees propagated by layering, in six cropping seasons. In order to meet the increased water requirements of the crop resulting from plant growth and development, irrigation during the dry season was performed daily according to the following water regime: 15 min/plant/day during the 1st year, 30 min/plant/day during the 2nd year, 45 min/plant/day during the 3rd year and 60 min/plant/day during all subsequent years. Water was supplied by one drip e

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Nicoletti, Márcio Antonio, Thiago Alberto Ortiz, and Lúcia Sadayo Assari Takahashi. "Yield and physiological quality of corn seeds after application of detasseling techniques in two cropping seasons." January 2023, no. 17(01):2023 (January 10, 2023): 69–73. http://dx.doi.org/10.21475/ajcs.23.17.01.p3788.

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Detasseling is an essential practice in maize seed production to obtain hybrids. Due the difficulty in carrying out the detasseling in a standardized way, the objective of this study was to evaluate the yield and physiological quality of maize seeds after using detasseling techniques in two cropping seasons. The experiment was carried out in Pitangueiras - PR, using corn progenitors of the commercial hybrid Balu 761. The experimental design was randomized blocks with 4 replications. The factorial scheme was 6 × 2, with 6 detasseling techniques: removal of the tassel only (D0); tassel removal +

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Mokgolo, Matome J., Mussie G. Zerizghy, and Jestinos Mzezewa. "Sunflower Growth and Grain Yield under Different Tillage Systems and Sources of Organic Manure on Contrasting Soil Types in Limpopo Province of South Africa." Agronomy 14, no. 4 (2024): 857. http://dx.doi.org/10.3390/agronomy14040857.

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A field study was conducted to assess the effect of tillage systems (TSs) and manure rates (MRs) on sunflower growth and yield at the University of Limpopo Experimental Farm (Syferkuil) which is on sandy loam soils and University of Venda Experimental Farm (UNIVEN) clayey soils, both located in Limpopo Province of South Africa for 2021/2022 and 2022/2023 cropping seasons. The experimental design was a split plot with three replications. The main plot was the tillage treatments: conventional (CON) and in-field rainwater harvesting (IRWH), while the subplots were the manure treatments: viz. poul

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Tamms, Laura, Friederike de Mol, Michael Glemnitz, and Bärbel Gerowitt. "Weed Densities in Perennial Flower Mixtures Cropped for Greater Arable Biodiversity." Agriculture 11, no. 6 (2021): 501. http://dx.doi.org/10.3390/agriculture11060501.

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The cropping of perennial wildflower mixtures to produce biomass for use in biogas plants is one option for breaking maize’s dominance as a bioenergy feedstock. The aim of this study was to investigate the development of weeds in commercially produced perennial wildflower mixtures. Weed control during the establishment of perennial wildflower mixtures is very difficult to manage and raises the issue of the development of new weed problems when cropping perennial wildflower mixtures. In a three-year field experiment with staggered starts in four sites in northeast Germany, a perennial crop mixt

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Waterer, D. "Influence of soil mulches and method of crop establishment on growth and yields of pumpkins." Canadian Journal of Plant Science 80, no. 2 (2000): 385–88. http://dx.doi.org/10.4141/p99-060.

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Management methods that speed crop establishment, growth and maturity are essential to the efficient production of warm season vegetable crops in regions with short, cool growing seasons. This study examined the influence of method of crop establishment and the use of plastic soil mulches on yields and crop maturity of two cultivars of pumpkins over two cropping seasons in central Saskatchewan. Transplanting did not improve stand establishment over direct seeding but enhanced yields without influencing crop maturity. Plastic mulches improved stand establishment and fruit yields relative to a n

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Pazhanivelan, Sellaperumal, Ramalingam Kumaraperumal, Manchuri Vishnu Priya, et al. "Multi-Temporal Analysis of Cropping Patterns and Intensity Using Optical and SAR Satellite Data for Sustaining Agricultural Production in Tamil Nadu, India." Sustainability 17, no. 4 (2025): 1613. https://doi.org/10.3390/su17041613.

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Analyzing the spatial and temporal trends in cropping patterns and intensity on a larger scale is essential for implementing timely policy decisions and strategies in response to climate change and variability. By converting cropping intensity estimates, we can compute net and gross production values, indirectly indicating food security status in the study region. This study compared the utility of optical (MOD13Q1) and SAR (Sentinel 1A) datasets for determining cropping patterns and associated intensity estimates across multiple agricultural seasons from 2019 to 2023, with spatial resolutions

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Kuo, Hsin-I., Hung-Yu Dai, Yong-Pei Wu, and Yu-Chien Tseng. "Peanut Germplasm Evaluation for Agronomic Traits and Disease Resistance under a Two-Season Cropping System in Taiwan." Agriculture 11, no. 12 (2021): 1277. http://dx.doi.org/10.3390/agriculture11121277.

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Cultivated peanut (Arachis hypogaea L.) is an important crop worldwide, and peanut germplasm is an important genetic resource for peanut breeding. The two-season cropping system is common in tropical and subtropical regions, which are the main peanut production areas. The weather in the two cropping seasons is usually distinct and makes germplasm evaluation challenging. In this study, random stratified sampling based on market type was applied to build a core collection. Comparisons between the original entire collection and core collection were conducted. Two seasons field trials were perform

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Sivakumar, M. V. K. "Growth and Yield of Millet and Cowpea in Relay and Intercrop Systems in the Sahelian Zone in Years when the Onset of the Rainy Season is Early." Experimental Agriculture 29, no. 4 (1993): 417–27. http://dx.doi.org/10.1017/s001447970002113x.

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SummaryField trials conducted previously in Niger have shown that in years when the onset of the rains is 15–20 days earlier than average, the long growing season can be exploited by growing a relay crop of millet (Pennisetum glaucum) and cowpea (Vigna unguiculata). In the trials reported here, the advantages of relay cropping were compared with intercropping with improved management and intercropping under traditional management during the 1989, 1990 and 1991 rainy seasons at the ICRISAT Sahelian Center, Sadore, Niger. The length of the growing season varied from 139 to 150 days over the thre

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Lu, Hao-Cheng, Wei-Kai Chen, Yu Wang, et al. "Effect of the Seasonal Climatic Variations on the Flavonoid Accumulation in Vitis vinifera cvs. ‘Muscat Hamburg’ and ‘Victoria’ Grapes under the Double Cropping System." Foods 11, no. 1 (2021): 48. http://dx.doi.org/10.3390/foods11010048.

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Under the double cropping system, berries usually showed significant quality variations in the summer and winter seasons. In the two-year/four-consecutive-season study, two table grapes of ‘Muscat Hamburg’ and ‘Victoria’ were investigated to determine the phenolic compounds in their berries. Different from those of the summer season, the berries in the winter season suffered no high-temperature stress since veraison to harvest in 2014 and 2015. The variations in the season temperatures led to a higher anthocyanin concentration in the winter season berries of ‘Muscat Hamburg’ grapes than that i

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Daba, Nano Alemu, and Eba Muluneh Sorecha. "Evaluation of Lentil Genotypes (Lens culinaris Medikus) for Growth and Yield Performances across Climate Conditions of Central Highlands of Ethiopia." Turkish Journal of Agriculture - Food Science and Technology 6, no. 11 (2018): 1575. http://dx.doi.org/10.24925/turjaf.v6i11.1575-1581.2004.

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Lentil crop has largely been affected by global climate changing, particularly, due to rainfall and temperature changing and variability. Hence, the experiment was conducted in Central Highlands of Ethiopia, namely Akaki, Chefe Donsa and Bishoftu Agricultural Research Centre, in the 2009 and 2010 cropping seasons to assess the genotypic variation of lentil for growth and yield performances. Five lentil genotypes viz. 87S-93549 X EL-103-16, 87S-93549 X EL-103-9-1, Alemaya X FLIP 88-41L-02-AK-14, Alemaya X FLIP 88-41L-02-AK-6 were arranged in randomized complete block design with four replicatio

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Tanveer, SK, Imtiaz Hussain, Haider Abbass, et al. "Wheat Crop Productivity in the Mungbean – Wheat Cropping System in Rainfed Area of Potohar Pakistan." SAARC Journal of Agriculture 21, no. 2 (2023): 95–107. http://dx.doi.org/10.3329/sja.v21i2.70480.

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Crop rotations have always a vital role in balancing of inter crops nutritional management, inhibiting of soil degradation, reduction of biotic and a biotic stress and in adapting to climate change. Potohar region is divided into three distinct rainfall zones i.e. high rainfall (>750 mm of annual rainfall), medium (500 to 750 mm) and low rainfall (<500 mm). Wheat is main rabi season crop of this region, while during kharif season groundnut, maize and sorghum are mostly planted in some areas, however maximum area is kept fallow and farmers plough it up for a number of times to conserve ra

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Palliyaguru, M. P. G. N. M., C. M. Navaratne, D. D. Wickramasinghe, and C. M. Nanayakkara. "Quantification of nitrogen leaching losses by paddy cultivation under controlled and continual runoff conditions." Ruhuna Journal of Science 14, no. 1 (2024): 75–86. http://dx.doi.org/10.4038/rjs.v14i1.135.

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In Asia, paddy is an important food crop that requires a high level of nitrogen, which is provided by straight chemical fertilizers that contribute a single nutrient, mainly urea. A study was conducted to quantify the leaching loss of nitrogen (as NO3--N) under two water management practices: controlled runoff and continual runoff in paddy cultivation at Low Country Intermediate Zone, Sri Lanka from 2015 to 2016 for four consecutive cropping seasons. Urea (N 46%) was applied as a sole source of Nitrogen at the rate of 225 kg ha-1. A randomized complete block design was employed with triplicate

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Msigwa, Anna, Celray James Chawanda, Hans C. Komakech, Albert Nkwasa, and Ann van Griensven. "Representation of seasonal land use dynamics in SWAT+ for improved assessment of blue and green water consumption." Hydrology and Earth System Sciences 26, no. 16 (2022): 4447–68. http://dx.doi.org/10.5194/hess-26-4447-2022.

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Abstract. In most (sub)-tropical African cultivated regions, more than one cropping season exists following the (one or two) rainy seasons. An additional cropping season is possible when irrigation is applied during the dry season, which could result in three cropping seasons. However, most studies using agro-hydrological models such as the Soil and Water Assessment Tool (SWAT) to map blue and green evapotranspiration (ET) do not account for these cropping seasons. Blue ET is a portion of crop evapotranspiration after irrigation application, while green ET is the evapotranspiration resulting f

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Prabhakar, K., K. Venkataramanamma, B. V. R. P. Reddy, et al. "The Effect of Site Specific Nutrient Management (SSNM) on Sunflower ‎Production." International Journal of Plant & Soil Science 35, no. 20 (2023): 753–62. http://dx.doi.org/10.9734/ijpss/2023/v35i203862.

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A field experiment was conducted during Kharif and Rabi seasons of 2017-18 to 2021-22 at Regional Agricultural Research station Nandyal to study the SSNM effect on yield system economics of sunflower based emerging cropping systems and soil nutrient status. Maize- sunflower cropping system recorded significantly higher sunflower equivalent yield which is on par with Soybean- sunflower cropping system. Gross and net returns were highest with maize – sunflower cropping system with 100% STCR fertilizer dose followed by Soybean - sunflower cropping system with 100% STCR fertilizer dose. Minimum re

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Ren, Xiaojian, Kehui Cui, Zhiming Deng, et al. "Ratoon Rice Cropping Mitigates the Greenhouse Effect by Reducing CH4 Emissions through Reduction of Biomass during the Ratoon Season." Plants 12, no. 19 (2023): 3354. http://dx.doi.org/10.3390/plants12193354.

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The ratoon rice cropping system (RR) is developing rapidly in China due to its comparable annual yield and lower agricultural and labor inputs than the double rice cropping system (DR). Here, to further compare the greenhouse effects of RR and DR, a two-year field experiment was carried out in Hubei Province, central China. The ratoon season showed significantly lower cumulative CH4 emissions than the main season of RR, the early season and late season of DR. RR led to significantly lower annual cumulative CH4 emissions, but no significant difference in cumulative annual N2O emissions compared

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Wickramasinghe, W. M. D. M., W. C. P. Egodawatta, D. A. U. D. Devasinghe, D. I. D. S. Beneragama, and L. D. B. Suriyagoda. "Effect of Different Nutrient Management Systems on Yield and Yield Components of Rice Crop (<em>Oryza sativa</em> L.) in the Dry Zone of Sri Lanka." Journal of Agricultural Sciences – Sri Lanka 18, no. 3 (2023): 455–64. http://dx.doi.org/10.4038/jas.v18i3.9705.

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Purpose: Integrated and organic nutrient management has recently become the focus in Sri Lanka for seeking better perspectives on food quality and environmentally friendly production. This study was conducted to understand the magnitude of yield and yield components under selective nutrient management systems in major cropping seasons within the transitional period of a conventional rice-based cropping system. Research Method: Rice yield components and yield were measured with different nutrient management systems; conventional, integrated, and organic from Yala 2019 to Maha 2020/21. An ANOVA

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Fogaça, Josué Júnior Novaes Ladeia, Paulo Araquém Ramos Cairo, Adriana Dias Cardoso, et al. "Yield and profitability responses of cowpea to cropping systems and sowing seasons in Vitória da Conquista, Bahia State, Brazil." Acta Scientiarum. Agronomy 44 (March 8, 2022): e53467. http://dx.doi.org/10.4025/actasciagron.v44i1.53467.

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Cowpea (Vigna unguiculata) crops produce a poor yield in northeastern Brazil compared to the other regions. The goal of this study was to assess the effects of irrigated cropping systems and sowing seasons on cowpea yield and profitability in Vitória da Conquista, Bahia, Brazil. Field studies were performed in four experiments during the rainy and dry seasons during 2016/2017 and 2017/2018, which denoted harvests 1, 2, 3, and 4, respectively. A randomized block design was used for each experiment with four replicates and the following treatments for cropping systems: (1) manual weeding; (2) li

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Li, Bokun, Yasuyuki Ishii, Sachiko Idota, et al. "Yield and Quality of Forages in a Triple Cropping System in Southern Kyushu, Japan." Agronomy 9, no. 6 (2019): 277. http://dx.doi.org/10.3390/agronomy9060277.

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A triple cropping system, combining spring maize, pearl millet, and twice-cut blast disease resistant Italian ryegrass, was examined for the 2016–2017 and 2017–2018 growing seasons to achieve quality herbage production in Miyazaki, southern Kyushu, Japan. The growth of the three crops reached to harvest, even though typhoon and heavy rainfall occurred. Annual dry matter (DM) yield of the triple crops was 4098 g m−2 and 4349 g m−2 in the first and second cropping seasons, respectively. The observed total digestible nutrients (TDN) were higher in spring maize (up to 68.2% and 76.8%), pearl mille

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Van Reuler, H., and B. H. Janssen. "Optimum NPK management over extended cropping periods in south-west Cote d'Ivoire." Netherlands Journal of Agricultural Science 44, no. 4 (1996): 263–77. http://dx.doi.org/10.18174/njas.v44i4.537.

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In the Tai region of south-west Cote d'Ivoire P is the yield-limiting nutrient on (moderately) well drained soils. In order to find the optimum P application rate, a factorial experiment (2N x 4P x 2K) in three replicates was conducted at two sites during six seasons. The factors investigated were N (0 or 50 kg/ha), P (0, 12.5, 25 or 50 kg P) and K (0 or 50 kg K). N (urea) and K (muriate of potash) applications were split into two equal parts and broadcast. From the third season onwards the N application was raised to 100 kg N. P (triple superphosphate) was placed near the young plants. Upland

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Abdullah, Muhammad H., Adeel Ahmad, Abdul Saboor, et al. "Climatic variability during cropping seasons in agroecological zones of Pakistan." International Journal of Agricultural Extension 10, no. 1 (2022): 09–22. http://dx.doi.org/10.33687/ijae.010.01.3426.

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This study aimed at assessing the climatic temperature and precipitation across agroecological zones during cropping seasons. Moreover, climatic variations in Pakistan for both parameters were gauged across defined Agroecological zones comprising both cropping seasons traditionally known as Rabi (Winter/Wheat growing) and Kharif (Autumn/Rice growing). Targeting comprehensive analysis, each season further disintegrated in the three stages i.e. sowing, flowering and harvesting stages. We incorporated meteorological data from 1961 to 2017, further climatic parameters extracted by employing a 30-y

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Oljaca, Snezana, Zeljko Dolijanovic, Djordje Glamoclija, Snezana Djordjevic, and Jasmina Oljaca. "Productivity of winter rye in organic vs. Conventional cropping system." Journal of Agricultural Sciences, Belgrade 55, no. 2 (2010): 123–29. http://dx.doi.org/10.2298/jas1002123o.

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Rye is a cereal which is very much demanded at the market, for making a special kind of bread, but it is little grown in Serbia. The aim of this paper is to investigate possibilities of organic growing of winter rye, comparing with the conventional one, in agroecological conditions of Valjevo hilly region during 2008/2009 and 2009/2010 cropping seasons. The trial was set up in a village of Kotesica, on soil which had not been used for agriculture for 7 years. In organic cropping system three combinations of microbiological fertiliser baktofil with zeolite and hydrogel were used prior to sowing

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Kim, Yean-Uk, Byun-Woo Lee, Sunggi Heu, Kang-Bo Shim, and Do-Soon Kim. "Potato Yield Gaps in North Korea and Strategies to Close the Gaps." Agronomy 10, no. 10 (2020): 1605. http://dx.doi.org/10.3390/agronomy10101605.

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Potato has become one of the staple crops to improve food security in North Korea since the late 1990s. However, the potato yield has been stagnated around 11–12 t ha−1 for several decades, and a food shortage is still a primary issue in North Korea. Yield gap analyses were carried out using the SUBSTOR-potato model to quantify the potato yield gaps and explore the potential ways to close the yield gaps in two different cropping seasons in North Korea (early- and main-season potatoes). Yield gaps were estimated to be around 80% for both early- and main-season potatoes. Early-season potato yiel

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Chen, Shutao, and Yao Huang. "Soil respiration and N2O emission in croplands under different ploughing practices: a case study in south-east China." Soil Research 47, no. 2 (2009): 198. http://dx.doi.org/10.1071/sr07225.

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Studies on the CO2 and N2O emission patterns of agricultural soils under different ploughing practices may provide an insight into the potential and magnitude of CO2 and N2O mitigation in highly managed farmland soils. In this study, field measurements of soil respiration and N2O flux with different ploughing depths were performed in the 2003–04 wheat (Triticum aestivum L.), 2004 maize (Zea mays L.), and 2004–05 wheat seasons. Soil temperature and moisture were simultaneously measured. Results showed that, in each cropping season, the seasonal variation in soil respiration developed with a sim

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Edema, R., E. Adipala, and D. A. Florini. "Influence of Season and Cropping System on Occurrence of Cowpea Diseases in Uganda." Plant Disease 81, no. 5 (1997): 465–68. http://dx.doi.org/10.1094/pdis.1997.81.5.465.

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An on-farm survey was conducted for two seasons (first and second rains of 1994) to determine influence of season and cropping systems on occurrence of cowpea (Vigna unguiculata) diseases in Uganda. Viral diseases were widespread in both seasons but were more severe in the intercropped than in the nonintercropped cowpea. In contrast, scab, rust, and powdery mildew were less common and less severe when cowpea was grown in intercrops. High plant populations favored scab and anthracnose, but viral diseases were more severe under low plant populations. Higher incidence and severity of viral diseas

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Banjarnahor, Dina, and Bistok Hasiholan Simanjuntak. "Evaluasi Kesesuaian Lahan Sumba Tengah Untuk Tanaman Pangan Serta Perancangan Pola Tanamnya Yang Spesifik Lokasi." Bumi Lestari Journal of Environment 16, no. 2 (2016): 108. http://dx.doi.org/10.24843/blje.2016.v16.i02.p04.

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The regency of Sumba Tengah in the province of East Nusa Tenggara relies on rainfall to support its dry land agriculture hence should be supported with land suitability evaluation and cropping pattern design for a more sustainable crop production. This study aims to evaluate land suitability for food crops in Sumba Tengah and formulate the appropriate precipitation-based cropping patterns. This work was carried out from March to June 2015. Stages of research were: 1) characterizing land attributes (climate and soil) by soil analysis and desk study, 2) assessing land suitability level by compar

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Luz, João Henrique Silva da, Matheus Batista da Silva, Luana do Nascimento Silva Barbosa, et al. "Short-Term Agronomic and Economic Responses to the Adoption of Cover Crops for Corn Rotation in the Brazilian Semiarid Region." Sustainability 15, no. 20 (2023): 15091. http://dx.doi.org/10.3390/su152015091.

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Cover crops (CCs) have demonstrated their significance in enhancing the agronomic and economic performance of corn in succession. In this paper, we assess the agronomic responses and short-term economic returns of adopting cover crops (CCs) for corn cultivation in the sandy soils of the semiarid region of northeast Brazil, with the aim of addressing the additional challenges of CCs adoption in semiarid regions. The field study was conducted in Arapiraca, Alagoas, under no-tillage conditions for two cropping seasons. A randomized complete block design was employed, comprising six CCs (sunn hemp

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WORKIE, Dejene Mamo, Abiro Tigabie MERSHA, Yehuala Kesa MESELU, and Amsalu Abie ZELEKE. "Potato-Barley Double Cropping in Bimodal Rainfall Areas of Central Highlands of Ethiopia." International Journal of Environmental, Sustainability, and Social Science 5, no. 1 (2024): 221–27. http://dx.doi.org/10.38142/ijesss.v5i1.871.

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In Ethiopia, barley and potato are the most important food security crop. Despite their importance, the production and productivity of these crop are low due to several reasons. Potatoes and barley are growing alternatively in the study area year after year, and the area has the potential for bimodal rainfall distribution both in the short and main seasons. The short-season rain is suitable for potatoes, and the main season is for barley production. An evaluation of double cropping was tested to grow those crops in a double cropping system in Belge and in the main season in 2014. Based on the

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Yekini, Buliaminu Adeniyi, Clement Gboyega Afolabi, Akinola Rasheed Popoola, and Sunday Ojo Adigbo. "Evaluation of forty‑five rice (Oryza species) accessions for resistance to rice blast (Magnaporthe oryzae) disease under natural conditions." Agricultura Tropica et Subtropica 57, no. 1 (2024): 77–89. http://dx.doi.org/10.2478/ats-2024-0008.

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Abstract The experiments were conducted to investigate the resistance levels among forty‑five lowland rice accessions at the Teaching and Research Farm, Federal College of Agriculture, Ishiagu (Latitude 5°56″N and Longitude 7°41″E) Ebonyi State, Nigeria. Forty‑five rice accessions were screened for their resistance to the blast disease in row planting during the 2017 and 2019 cropping seasons using Randomised Complete Block Design (RCBD) and were replicated thrice. The data on disease intensity and agronomic performance were subjected to Analysis of Variance and the significant means were sepa

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Kumari, Alisha, Rajan Kumar, Trisha Sinha, Sweeti Kumari, and Rahul Kumar. "Effect of Diversification on System Productivity and Profitability under North Bihar Condition." International Journal of Environment and Climate Change 13, no. 10 (2023): 3928–32. http://dx.doi.org/10.9734/ijecc/2023/v13i103067.

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A field experiment was conducted during three seasons of 2019-20 at RPCAU, Pusa to evaluate the Effect of Diversification on System Productivity and Profitability under North Bihar Condition. Treatment comprised cropping systems in main plots: C1 - Rice - Wheat - Fallow, C2 - Rice - Wheat - Green Gram, C3 - Rice - Maize - Dhaincha, C4 - Rice - Maize + Potato - Dhaincha, C5 - Rice - Maize + Green Pea - Dhaincha and moisture regimes in sub plots with 3 days disappearance of ponded water in kharif season, three levels of IW/CPE ratio in rabi season I1: IW/CPE = 0.6, I2: IW/CPE = 0.8, I3: IW/CPE =

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Mtei, Kelvin Mark, Ajebesone Francis Ngome, Stephen Wambua, and Mathias Becker. "Assessment of Technology Options Addressing Agricultural Production Constraints in Western Kenya." Greener Journal of Agricultural Sciences 3, no. 3 (2013): 222–34. https://doi.org/10.15580/GJAS.2013.3.102412135.

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Poor soil fertility and weed infestation are among major constraints facing agricultural production in Western Kenya. Recommended technologies differ in resource requirement and their effectiveness are seasonal site-specific. On-farm experiments were conducted during 2008/09 cropping seasons on two soil types of western Kenya using maize as a test crop. Seven technology options were assessed on agronomic performance, resource requirement, and economic returns. Maize grain yield differed between cropping seasons with generally higher yields during long rainy season, and across soil types with o

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