Academic literature on the topic 'Ratoon Cropping'

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Journal articles on the topic "Ratoon Cropping"

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Neogi, MG, MAH Miah, JC Biswas, AKMS Uddin, and MM Rashid. "Established Rice Ratoon for Improving Cropping Intensity and Income." Annals of Bangladesh Agriculture 25, no. 1 (2022): 33–41. http://dx.doi.org/10.3329/aba.v25i1.58153.

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Transplanted aman rice suffers from frequent flash flood damage in northern Bangladesh and thus grain yield decreases. An experiment was conducted at the RDRS Farm, Rangpur, Bangladesh to evaluate production opportunity and income generation from growing ratoon rice in between boro and aman seasons during May to July in fallow land as additional harvests. Ratoon seedlings of ACI-2 boro hybrid rice was transplanted and tested against the performance of conventional transplanted BR11 and BRRI dhan46. BR11 gave higher grain yield and profit than ratoon cropping. However, ratoon crop required only 75-80 days for maturity. Thus, it would be possible to incorporate rice ratoon cropping in fallow lands immediately after harvest of boro rice in April- May as additional crop. After harvests of the ratoon rice, farmers can grow traditional aman varieties as conventional practice. If ratoon of ACI-2 (hereafter ratoon rice)-BRRI dhan46 cropping system is practiced then total grain yield from the system was 8.42 t ha-1, which was almost double than conventional BR11 or BRRI dhan46 cultivation. Total net income of boro and ratoon rice-BRRI dhan46 system was also higher (Tk 55,090 ha-1) compared to traditional BR11 aman rice cultivation (Tk 35,802 ha-1). The overall result indicated that just immediate after boro rice harvests, growing rice from ratoon seedlings of ACI-2 followed by BRRI dhan46 in aman season provided higher net profit than traditional cultivation of BR11. The result also implies that growing rice by using ratoon seedlings can ensure three harvests (boro rice-ratoon rice-aman rice) in the same year instead of growing two traditional rice (boro rice-aman rice) crops in a year with additional net profit of Tk 19,288 ha-1 year-1. Moreover, use of rice ratoon seedlings might help farmers in intensification of crop in flash flood prone areas of the country. Ann. Bangladesh Agric. (2021) 25 (1) : 33-41
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B, SUNDARA, and SUBRAMANIAN S. "CROP YIELDS AND ECONOMICS OF SHORT DURATION SUGARCANE BASED SEQUENTIAL CROPPING SYSTEMS." Madras Agricultural Journal 76, January (1989): 19–25. http://dx.doi.org/10.29321/maj.10.a02022.

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Field studies were conducted at Sugarcane Breeding Institute. Coimbatore during 1982-84 on alfisol to evaluate four short duration sugarcane based sequential cropping systems (1. short duration sugarcane/1st ratoon/2nd ratoon: 2. short duration sugarcane/ 1st ratoon/finger millet/cotton; 3: finger millet/short duration sugarcane/1st ratoon/wheat; 4. finger millet/maize/short duration sugarcane/1st ratoon) fot their production potential and economics vis-a-vis the conventional practice of a plant and a ratoon crop with a normal duration sugarcane in a cropping cycle of 24 months. All the short duration sugar- cane based cropping systems were more productive and profitable than the conventional system. The sequence 'short duration sugarcane/1st ratoon/finger millet/cotton was best producing 195.6 t of cane. 3:81 of finger millet and 4.07 t of seed cotton/ha compared to 203.6 t of cane alone in the conventional system. Sequence 2 gave a net return of Rs. 48,242/ha (benefit/cost ratio= 3.13) compared to 23.640/ha in the conventionall system (benefit/cost ratio = 2.47).
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Dewi, Khairun Nisa Saputri, and Saifuddin Hasjim. "PENGARUH SISTEM TANAM KONVENSIONAL DAN RATUN TERHADAP KEBERADAAN HAMA UTAMA, PERTUMBUHAN DAN PRODUKSI PADI (ORYZA SATIVA L.)THE INFLUENCE OF CONVENTIONAL AND RATOON PLANTING SYSTEM ON THE PRESENCE OF MAIN PESTS GROWTH AND RICE PRODUCTION (ORYZA SATIVA L.)." Jurnal Bioindustri 4, no. 1 (2021): 41–54. http://dx.doi.org/10.31326/jbio.v4i1.233.

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Rice is an important commodity in Indonesia because it is the main food source consumed daily by people in Indonesia. Farmers often fail in cultivation of rice plant thereby affecting availability of foodstuffs. One factor of the rice production failure and the decreasing cultivation is the pests attack on the land plantation. Affecting factors of the pests existence is cropping system. This research was conducted to find out the presence of pest in ratoon and conventional cropping systems. Observations on this research used random sampling technique on the diagonal line with conventional and ratoon cropping systems. The variety used was Sertani 13 with planting distance 25 x 25 on 50 m x 20 m acres. The observation parameters are plant height, pest population, pest attack intensity, number of shoots and results of production. The data obtained will be analysed descriptively by comparing Conventional and Ratoon cropping systems. The results showed that conventional cropping systems and ratoon has good effect on pest growth and populations however both system have bad effect on rice production.
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Shiraki, Shutaro, Thin Mar Cho, Yutaka Matsuno, and Yoshiyuki Shinogi. "Evapotranspiration and Crop Coefficient of Ratoon Rice Crop Determined by Water Depth Observation and Bayesian Inference." Agronomy 11, no. 8 (2021): 1573. http://dx.doi.org/10.3390/agronomy11081573.

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Actual crop evapotranspiration (ET) and crop coefficient (Kc) of ratoon rice crop, which are necessary for irrigation planning, have been hardly reported. ET can be directly measured by lysimeter and eddy covariance but it is expensive, so it remains difficult to determine ET, especially in developing countries. The focus of this study was to evaluate the ET and Kc of ratoon cropping in a tropical region of Myanmar using a simplified method. Our method combined the manual observation of water depth in concrete paddy tanks and the ET model estimation using Bayesian parameter inference. The ET and Kc could be determined using this method with an incomplete observation dataset. The total ET of ratoon was 60–70% less than that of the main crop, but this difference was mainly attributed to climate conditions in each cultivation. The Kc regression curve between transplanted rice and ratoon crops was different because of the tillering traits. The results suggest that irrigation scheduling of ratoon cropping in the initial growth stage should take high crop water requirements into account. In addition, the productivity of ratoon crop is equivalent to transplanted rice, which was determined for cultivation in experiment conditions of small concrete tanks. Therefore, further study on ratoon in Myanmar is necessary for clarifying the viability of ratoon cropping.
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Simarmata, M. J., A. Junaedi, H. Purnamawati, and I. Lubis. "The agronomic performance of ratoon and modified ratoon salibu in the multi-canopy rice cultivation system." IOP Conference Series: Earth and Environmental Science 1208, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1755-1315/1208/1/012039.

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Abstract The use of multi-canopy technology by intercropping and modified ratoon techniques called “salibu” in rice cultivation is expected to have the benefit the increasing yield potency through a vertical harvesting area and cropping index. The purpose of this study was to investigate rice growth and production by the modified ratoon salibu on a multi-canopy cropping system. The multi-canopy was performed by planting a short variety (Inpari 33 and Inpari 43) intercrop with a tall variety (IPB 9G). The short varieties were transplanted with growing space 4:1 with a distance of 30 to 15 cm, and the tall type was transplanted in between rows. After the main-crops were harvested, conventional and modified ratoon salibu were conducted and observed on growth and production. The performance of multi-canopy showed a higher yield compared to that of monoculture. The modified ratoon salibu technique was better than the conventional ratoon in most of the morphological and physiological traits, as well as for grain yield. Utilizing taller rice as intercropping for multi-canopy combined with modified ratoon salibu could be recommended for gaining the benefit of the cropping index as a land utilization strategy.
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ROSHAN LAL, S.N.L. SRlVASTAVA, and MEHAR CHAND. "Integrated weed management for sugarcance (Saccharum officinarum) plant- ratoon cropping system." Indian Journal of Agronomy 51, no. 4 (2001): 251–55. http://dx.doi.org/10.59797/ija.v51i4.5022.

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A field experiment was conduced during 2000-03 and 2001-04 to evolve suitable and economical integrated weed-management technologies for sugarcane (Saccharum officinarum) plant and ratoon crops. The treatments comprised four different weed-management practices for plant (chemical, integrated, interculture and weedy check) and ratoon (integrated, trash mulching, interculture and weedy check). In plant crop the integrated method (one hoeing after first irrigation followed by spraying of atrazine 2 kglha after second irrigation in moist soil) and in ratoon crop the integrated method (one hoeing followed by spraying of atrazine 2 kglha in moist soil at ratoon-initiation stage) or trash mulching were observed to be better weed-management technologies for cane production, involving less costs. Rice-mustard-sugarcane (plant)-ratoon-wheat cropping system was found more economical than rice-wheat-sugarcane (plant)-ratoon-wheat cropping system.
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Xiang, Jinbiao, Liusheng Zhong, Zhixiong Yuan, et al. "Effects of Ratoon Rice Cropping Patterns on Greenhouse Gas Emissions and Yield in Double-Season Rice Regions." Plants 13, no. 11 (2024): 1527. http://dx.doi.org/10.3390/plants13111527.

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The ratoon rice cropping pattern is an alternative to the double-season rice cropping pattern in central China due to its comparable annual yield and relatively lower cost and labor requirements. However, the impact of the ratoon rice cropping pattern on greenhouse gas (GHG) emissions and yields in the double-season rice region requires further investigation. Here, we compared two cropping patterns, fallow-double season rice (DR) and fallow-ratoon rice (RR), by using two early-season rice varieties (ZJZ17, LY287) and two late-season rice varieties (WY103, TY390) for DR, and two ratoon rice varieties (YLY911, LY6326) for RR. The six varieties constituted four treatments, including DR1 (ZJZ17 + WY103), DR2 (LY287 + TY390), RR1 (YLY911), and RR2 (LY6326). The experimental results showed that conversion from DR to RR cropping pattern significantly altered the GHG emissions, global warming potential (GWP), and GWP per unit yield (yield-scaled GWP). Compared with DR, the RR cropping pattern significantly increased cumulative methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2) emissions by 65.73%, 30.56%, and 47.13%, respectively, in the first cropping season. Conversely, in the second cropping season, the RR cropping pattern effectively reduced cumulative CH4, N2O, and CO2 emissions by 79.86%, 27.18%, and 30.31%, respectively. RR led to significantly lower annual cumulative CH4 emissions, but no significant difference in cumulative annual N2O and CO2 emissions compared with DR. In total, the RR cropping pattern reduced the annual GWP by 7.38% and the annual yield-scaled GWP by 2.48% when compared to the DR cropping pattern. Rice variety also showed certain effects on the yields and GHG emissions in different RR cropping patterns. Compared with RR1, RR2 significantly increased annual yield while decreasing annual GWP and annual yield-scaled GWP. In conclusion, the LY6326 RR cropping pattern may be a highly promising strategy to simultaneously reduce GWP and maintain high grain yield in double-season rice regions in central China.
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Oda, Masato, Huu Chiem Nguyen, and Van Thao Huynh. "Evaluation of cropping method for perennial ratoon rice (SALIBU)." F1000Research 8 (October 30, 2019): 1825. http://dx.doi.org/10.12688/f1000research.20890.1.

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Background: Generally, the yield of ratoon rice is at most 50% of the main crop. However, a cropping method “SALIBU” achieved more yield than the main crop and could be used for the cultivation of perennial cropping. Although the SALIBU method is implementing 10 additional management practices to conventional method, the effect of each management practice is unclear. Therefore, we aimed to evaluate the effect size and the robustness of each management practice. Methodology: We evaluated the effect size using an L16 orthogonal array design pot experiment. For the robustness, we duplicated the experiment under both standard and checked whether the practice shows the same effect size. The bad conditions were low plant density, no fertilization, continuous flooding water management, and late harvesting. Results: The ratoon rice yield was proportional to the number of ratoon tillers used as in conventionally produced ratoon rice. Late cutting was most affected to the number of ratoon tillers. Importantly, this effect was reversed; the effect was positive under bad conditions, but was negative under standard conditions. Furthermore, late irrigation, a recommended management practice, had a robust negative effect on ratoon tillers and yield under both the conditions. Positive large effects were shown in the bad condition only. Discussion: Our results show that the SALIBU cropping method includes practices with unstable, negative, or minimal effects. The practices have unstable effects should be clarifying the interaction with the condition. The practices that have negative effects should exclude. Using practice on small effect size should depend on a cost-benefit analysis. Conclusions: SALIBU will be acceptable to the Mekong Delta triple cropping rice cultivation without the additional practice of original SALIBU cropping method. However, further work is needed to clarify the interaction between late cutting and the cultivation condition, and on the negative effect of late irrigation.
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Maurya, Manish Kumar, Anjan Sarma, Gariyashi Tamuly, et al. "Rice Ratooning: A Pioneering Strategy for Enhancing Rice Productivity and Embracing Climate Change Adaptation and Mitigation." International Journal of Plant & Soil Science 35, no. 20 (2023): 1047–59. http://dx.doi.org/10.9734/ijpss/2023/v35i203900.

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The global demand for rice as a primary staple food, especially in Asia, has intensified the need for increased rice production. However, traditional rice cultivation methods such as double-cropping have adverse environmental impacts and are affected by water scarcity due to changing climate conditions. In this context, the ratoon rice system, which involves regenerating a second rice crop from the same plant after the main harvest, offers a promising solution. Ratoon cropping reduces production costs, labor, and water usage while being more environmentally friendly. This review paper aims to explore the best management practices for enhancing ratoon rice system productivity and climate change adaptation. Various strategies are discussed such as optimal varietal selection, timing of sowing and harvesting, establishment techniques, cutting height of the main crop, water and nutrient management, weed control and the use of plant growth regulators. The results suggest that implementing these practices can lead to better ratoon crop yields and economic benefits. Furthermore, sustainability assessments have shown that ratoon rice cultivation can reduce greenhouse gas emissions, making it a more environmentally sustainable option compared to conventional rice cropping methods.
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Wu, Wenge, Zhong Li, Min Xi, et al. "Ratoon Rice System of Production: A Rapid Growth Pattern of Multiple Cropping in China: A Review." Plants 12, no. 19 (2023): 3446. http://dx.doi.org/10.3390/plants12193446.

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In this review, the significance of ratoon rice was introduced, and the research status and development trends of ratoon rice were also summarized. It is pointed out that mechanically harvested ratoon rice is the developing direction of future ratoon rice. On this basis, we analyzed the relationship between the yield of ratoon rice and many factors, such as variety characteristics, sowing date, water control, fertilizer, and many others. It is important to construct a comprehensive and practical evaluation system for rice regeneration that can provide a basis for high-yield cultivation of machine-harvested ratoon rice. At the same time, it is suggested that combining high-yield cultivation with the green ecological efficiency of rice can achieve better production and improve the quality of rice. Finally, some problems with ratoon rice development were put forward. An in-depth study on the rhizosphere biology and regulation techniques of ratoon rice and the effective ecological compensation mechanism increased the capacity and quality of ratoon rice. Further, the functioning of such research can enhance the planting area for ratoon rice and improve food security.
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Dissertations / Theses on the topic "Ratoon Cropping"

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Lin, Chi-Feng, and 林其鋒. "Studies on the Three Elements of Fertilizer and Ratoon Cropping for Growth, Yield and Active Components in Scutellaria barbata D. Don." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/61014553014158752368.

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碩士<br>國立屏東科技大學<br>農園生產系所<br>104<br>Abstract Student ID: M10311002 Total Page: 96 Title of Thesis: Studies on the Three Elements of Fertilizer and Ratoon Cropping for Growth, Yield and Active Components in Scutellaria barbata D. Don Name of Institute: Department of Plant Industry, Nationnal Pingtung University of Science and Technology Graduate Date: 4 Juiy, 2016 Degree Conferred: Master Name of Student: Chi-Feng Lin Adviser: Horng-Liang Lay, Ph. D. The Contents of Abstract in This Thesis: Scutellaria barbata D. Don is a perennial herb of Scutellaria genus in the Lamiaceae. In this study, effects of the three major fertilizer elements (Control (CK), Full applying fertilizer (NPK), Applying without nitrogen fertilizer (PK), Applying without phosphate fertilizer (NK), Applying without Potassium fertilizer (NP)) and ratoon cropping on growth, yield as well as analysis on active components in S. barbata at different stages and part of the plant. Studies also conducted on extraction methods for seven active components and determination of their contents by high performance liquid chromatography. As the results, fertilizer experiment showed that CK and PK treatments reduced growth and yield. The yield of ratoon cropping was higher than plant cropping. Extracted with 50% methanol by ultrasonic extraction methods showed that, the amount of components in apigenin, baicalin, baicalein, luteolin, naringenin, scutellarein, and wogonin were 169.00 ± 5.56, 676.82 ± 23.23, 426.77 ± 17.64, 772.72 ± 11.78, 12.89 ± 0.18, 585.04 ± 20.19 and 3,003.61 ± 83.18 µg/g, respectively. In conclusion, CK and PK treatments and ratoon cropping can increase component contents, significantly. Key word: Scutellaria barbata D. Don, High performance liquid chromatography, Ultrasonic extraction.
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Madimabe, Koketso Sherleen. "Productivity of five pigeonpea (cajanus cajan) varieties in pigeonpea-maize strip intercroppin in Limpopo Province." Thesis, 2019. http://hdl.handle.net/10386/2908.

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Thesis (M. Sc. Agriculture (Agronomy)) -- University of Limpopo, 2019<br>Pigeonpea (Cajanus cajan (L) Millsp.) is an important grain legume crop in tropical and subtropical countries, where it provides a cheap source of protein. Smallholder farmers in Limpopo Province cultivate landraces of pigeonpea, which are characterised with late maturity, low grain yield and being sensitive to photoperiod. To increase the productivity of the cropping system involving pigeonpea, several earlymedium maturity varieties have been introduced. However, performance of the varieties has not been tested in strip intercropping in Limpopo Province. Farmers plant these landraces by using mixed intercropping without definite row arrangement. This practice does not optimise plant density; it hinders farm inputs application and is characterised producing low yields. Therefore, the inclusion of early maturing varieties of pigeonpea in an intercrop will enable farmers to select the best variety for planting in future and thus enhance their output as well as their productivity. The objectives of this study were to assess the agronomic performance of five pigeonpea varieties in pigeonpea-maize strip intercropping, to determine the effect of strip intercropping on maize yield and establish the effect of location and season variations on the performance of both component crops under the intercropping system. Experiments were conducted at the University of Limpopo Experimental Farm (UL Farm) and Ga-Thaba village during the 2015/16 and 2016/17 season. Five improved early-medium maturing pigeonpea varieties (ICEAP 001284, ICEAP 00604, ICEAP 87091, ICEAP 00661 and ICEAP 01101-2) from ICRISAT were evaluated under strip intercropping with maize cultivar PAN 6479. The varieties were selected as earlymedium maturing varieties from previous pigeonpea trials. The trials were laid in a split plot design. The main plot comprised cropping systems (intercrop and monocrop), while the subplot comprised the varieties with three replications. Data collected on pigeonpea were number of days to 50% flowering and 90% maturity number of primary branches; plant height (cm); number of pods per plant; pod length (cm); number of seed per pod; hundred seed weight (g); and grain yield (kg ha-1), whereas on maize, number of days to 50% tasselling and silking; plant height (cm); cob length (cm); cob per plant; grain yields (kg ha-1); and stover (kg ha-1) were recorded. LER was calculated to determine intercropping productivity. Data analysis was done using Statistic 10.0; and Least Significance Difference (LSD) was used to separate the means that showed significant differences at an alpha level of 0.05. The results revealed significant differences in nearly all pigeonpea variables expect (pod length, number of seed per pod and hundred seed weight). Variables that showed significant differences in maize were plant height, cob length, grain yields and stover. Number of days to 50% flowering and 90% physiological maturity differed significantly (P ≤ 0.05) among varieties at the UL Farm and Ga-Thaba. Varieties (ICEAP 001284 and ICEAP 00604) exhibited the shortest number of days to 50% flowering and 90% maturity in both locations during both seasons. The interaction between variety x season (V x S) showed significant (P ≤ 0.05) differences in pigeonpea grain yield. The top yielders during 2015/16 at the UL Farm were ICEAP 01101-2 (1555 kg ha-1) and ICEAP 001284 (1280 kg ha-1), while during the 2016/17 season, they were ICEAP 001284 (937 kg ha-1) and ICEAP 01101-2 (912 kg ha-1). High yielder at Ga-Thaba during the 2016/17 season were ICEAP 001284 and ICEAP 01101-2 with grain yields of 671 kg ha-1 and 627 kg ha-1, respectively. Furthermore, varieties that obtained high yields during the 2015/16 season were ICEAP 001284 (504 kg ha-1) and ICEAP 00604 (541 kg ha-1). Most of the varieties during both seasons at the UL Farm and Ga-Thaba yielded more than 500 kg ha-1 under strip intercropping as compared to mixed intercropping, which obtained yields averages of below 400 kg ha-1. The highest maize grain yields of 1450 kg ha-1 were recorded during 2015/16 as compared to 958 kg ha1 during the 2016/17 season at the UL Farm. The calculated total Land Equivalent Ratio (LER) for the two crops in both locations gave positive and higher than 1 values, which suggests a favourable grain yield advantage for maize-pigeonpea strip intercrop over mixed intercropping. Key words: Cajanus cajan, maize, cropping system, maturity, grain yields, land equivalent ratio
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Books on the topic "Ratoon Cropping"

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Sundara, B. Ratoon Cropping. Nova Science Publishers, Incorporated, 2011.

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Book chapters on the topic "Ratoon Cropping"

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Mpairwe, Denis, and David Mutetikka. "Improved feeding for dairy cattle and poultry in smallholder crop-livestock systems." In Sustainable agricultural intensification: a handbook for practitioners in East and Southern Africa. CABI, 2022. http://dx.doi.org/10.1079/9781800621602.0008.

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Abstract This chapter describes how cropping systems can be used to supplement feeds to increase dairy and poultry yields. It completes the concept of on-farm integration of crop, livestock and natural resources technologies necessary for sustainable intensification on smallholder farms. The different processes that utilize different feed sources to produce better-quality feed rations for dairy cows and poultry are also discussed.
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Xiong, Shaohui, Zhengfei Chen, Chaojie Miao, Lu Kuang, and Li Hu. "Mosaic Method for Bridge Surface Imaging Based on Image Correction and Path Optimization." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240832.

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To address the fundamental issue of large-scale bridge surface defect detection by inspection robots, an innovative stitching method based on image correction and shooting path optimization is proposed. By presetting shooting angles, distances, cropping ratios, and camera parameters, reasonable shooting step lengths and paths are determined. Correction coefficients are calculated for each photo, and the photos undergo refined processing of correction followed by cropping according to the cropping ratio, eliminating distortions and redundant information during the shooting process. The cropped and corrected photos are then seamlessly stitched together in numerical order to generate complete and high-quality images. The stitching method in this study is not only suitable for complex scenes without prominent feature points but also significantly reduces computational resource consumption by simplifying calculation processes and optimizing algorithm design. A verification experiment was conducted on the Mozhai Wujiang Grand Bridge of the Chongqing-Hunan Expressway Duplication Project, successfully stitching together a complete image of the bridge’s main girder. Compared with traditional image stitching methods, this method significantly improves stitching efficiency and accuracy while ensuring the accuracy and reliability of the stitching results. This study provides an efficient and accurate image stitching technology for bridge surface defect detection, with broad application prospects and important practical value.
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Singh, Ajay Kumar, and Bhim Jyoti. "Effect of Climate Change and Agricultural Factors on the Technical Efficiency of the Industrial Sector Across Indian States." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-5792-7.ch005.

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This chapter estimates the TE of the industrial sector across Indian states using a stochastic frontier analysis. It also observes the impact of climatic and agricultural factors on gross value added (GVA) and TE of the industrial sector using a log-linear regression model. Annual average values of maximum and minimum temperature, precipitation and actual rainfall are considered as climatic factors, and irrigated area, cropping intensity, gross sown area, and credit deposit ratio are used as control variables in the empirical model. It compiles state-wise panel data of mentioned variables during 1991 – 2021. The results reveal that there is significant diversity in TE across states. TE and GVA are negatively impacted due to climate change. Gross irrigated area, cropping intensity, and gross sown showed a significant impact on TE and GVA. It provides policy proposals to reduce diversity in TE of industries across Indian states.
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Denevan, William M. "Pre-European Forest Cultivation." In Cultivated Landscapes of Native Amazonia And the Andes. Oxford University PressOxford, 2001. http://dx.doi.org/10.1093/oso/9780198234074.003.0007.

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Abstract The forms of Amazonian Indian forest farming examined in Chapters 4 and 5 are mostly recent. It is tempting to believe that pre-European field practices were similar; however, we do not know this. We can only speculate as to what fields may have been like, based on limited evidence. A common assumption is that shifting cultivation was the dominant form of prehistoric cultivation, with forms of intensive (permanent or semipermanent) agriculture being absent or rare (Meggers 1957; 1993-5; 1995; Steward and Faron 1959: 292; Willey 1971: 339; D. J. Wilson 1999: 63). However, there is no archaeological method that I know of that can conclusively demonstrate the presence of shifting cultivation.1 Nor is there an ‘archaeological signature’ to indicate even relative cropping to fallow ratio (Killion 1990: 192).
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Malik, Sunesh, Rama Kishore Reddlapalli, and Girdhar Gopal. "GA-Based Optimized Image Watermarking Method With Histogram and Butterworth Filtering." In Research Anthology on Multi-Industry Uses of Genetic Programming and Algorithms. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8048-6.ch043.

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The present paper proposes a new and significant method of optimization for digital image watermarking by using a combination of Genetic Algorithms (GA), Histogram and Butterworth filtering. In this proposed method, the histogram range selection of low frequency components is taken as a significant parameter which assists in bettering the imperceptibility and robustness against attacks. The tradeoff between the perceptual transparency and robustness is considered as an optimization puzzle which is solved with the help of Genetic Algorithm. As a result, the experimental outcomes of the present approach are obtained. These results are secure and robust to various attacks such as rotation, cropping, scaling, additive noise and filtering attacks. The peak signal to noise ratio (PSNR) and Normalized cross correlation (NC) are carefully analyzed and assessed for a set of images and MATLAB2016B software is employed as a means of accomplishing or achieving these experimental results.
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Sheppard, Charles. "6. Reef fish and other major predators." In Coral Reefs: A Very Short Introduction. Oxford University Press, 2021. http://dx.doi.org/10.1093/actrade/9780198869825.003.0006.

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Fish, like corals, have geographical patterns across regions and across individual reefs, being structured in the latter case by wave energy and depth. The thousands of species show a variety of feeding patterns. Detritus feeders are very abundant, feeding on the detritus on the seabed, especially in the fine, filamentous algal turf on apparently bare rock. Plankton feeders are common also, and herbivorous fishes show a large abundance, perhaps a quarter of the total species present, cropping algae that otherwise would grow unchecked and smother coral. Since turf algae also contain many micro-species and detritus, most herbivores also ingest much food other than simple plant material. Carnivores range from extreme specialists, such as polyp-picking butterflyfish, to generalists. Sharks and barracuda only consume other fish and generally are at the top of their food chains. The complicated ecological structure of the food webs can be clarified by analysing nitrogen isotope ratios in their tissues. Other important coral carnivores include the crown of thorns starfish, which can remove almost all living coral on a reef when it develops into plagues. Overfishing by humans greatly disturbs the equilibrium of a reef, and this is increasingly causing reef degradation.
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Rajput, Ambrin, Qurban Ali Panhwar, and Hafeezullah Babar. "Role of Leguminous Crops by Enhancing Soil Fertility and Plant Nutrition." In Legumes Crops - Cultivation, Uses and Benefits [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1006827.

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Food legumes, such as lentils, chickpeas, mung bean, soybean, peas, and beans, have been cultivated worldwide. They are providing essential nutrients and contributing to overall food security. Legumes are rich in protein, ranging from 20 to 45%, and contain essential amino acids, fiber, vitamins, and minerals, making them a nutritionally balanced food source. Biological nitrogen is fixed (90%) by legumes for sustainable agriculture. Meanwhile, the production of various leguminous crops is reduced due to low yield potential, the blend of biotic and abiotic stresses, and environmental changes. The continued cultivation of food legumes in existing cropping patterns is supported by their substantial nutritive values, advantageous cost-benefit ratios, and positive influence on soil health. The strategic integration of legumes into agricultural practices to boost productivity has gained significant attention in response to global food demand. Moreover, legumes play a pivotal role in rejuvenating soil organic matter and addressing problems when included in crop rotations with non-leguminous crops. Research findings that underscore the procedure of N2 fixation stand out as the most environmentally friendly for meeting the substantial nitrogen requirements. This will increase food production in an eco-friendly manner by reducing reliance on agrochemicals and preserving nutrient balances in the soil.
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Dobocha, Dereje, and Debela Bekele. "Faba Bean Agronomic and Crop Physiology Research in Ethiopia." In Legumes [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101542.

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Faba bean is an important pulse crop in terms of protein source, area coverage, and volume of annual production in Ethiopia. The aim of this paper is to assess the agronomic and crop physiology investigations in the past two decades in Ethiopia. The production limiting factors of this crop are low input usage, natural disasters, depletion of macronutrients, and unavailability of essential nutrients. Phosphorus is among the main limiting nutrients in soil systems in Ethiopia. Seed yield and biomass yield of faba bean were increased from 1338 to 1974 kg/ha and from 3124 to 4446 kg/ha when phosphorous was changed from 0 to 52 kg/ha, respectively at Holeta whereas application of 40 kg P ha − 1 resulted in higher grain yield (6323 kg ha−1) and 3303 kg ha−1 at Lemu-Bilbilo and Bore highlands, respectively. The highest grain yield of 32 kg ha−1 was obtained from the application of 92 kg P2O5 ha−1 at Sekela district while application of 46 kg P2O5 ha−1 resulted in a substantial increase in seed yield over unfertilized plots on vertisols of Ambo. On the other hand, the results suggest that using starter nitrogen from 0 to 27 kg/ha has marginally increased faba bean yield but, a farther increase of nitrogen has indicated deteriorate of yield at Arsi zone. Proper plant populations play a crucial role in enhancing faba bean production. Planting faba bean at 30 cm × 15 cm spacing gave the highest grain yield in Duna district while it was 30 × 7.5 cm at vertisols of Ambo University research farm. Significantly higher seed yield (4222 kg/ha) was observed in the 40 cm inter-row spacing as compared to 50 cm inter-row spacing, which gave the lowest seed yield per hectare (3138 kg/ha) on fluvisols of Haramaya University. Intercropping and crop rotation are cropping systems that can increase soil fertility and crop yield. Intercropping of faba bean with barley at Debre Birhan increased land equivalent ratio than both crops when planted as sole. An additional income of 18.5% and 40% was gained than planting sole faba bean and wheat, respectively at Kulumsa. Faba bean can fix about 69 kg/ha nitrogen in Northern Ethiopia. Generally, the current review results showed that only limited studies in organic and bio fertilizer, plant density, and cropping systems were done on faba bean in Ethiopia. Hence, studies regarding soil acidity, organic fertilizer, and secondary plus micronutrient impacts on faba bean production and productivity along soil types and weather conditions need great attention in the future in Ethiopia.
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U. K. Shanwad, Dr, Dr G. N. Maraddi, Dr G. M. Hiremath, and Dr Sangu Angadi. "INTEGRATED FARMING SYSTEM FOR SUSTAINABLE RURAL LIVELIHOOD OF SMALL AND MARGINAL FARMERS OF ARID AND SEMI-ARID REGIONS OF HYDERABAD KARNATAKA." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 5. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag5p2ch5.

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The research conducted on farming systems in India and other regions has provided valuable insights into the challenges faced by small and marginal farmers and their surrounding environment. By vertically integrating various agricultural enterprises such as crops, vegetables, livestock, horticulture, forestry, and fodder, and incorporating innovations in science and technology within a well-planned cropping pattern, optimal utilization of on-farm resources has significantly increased overall farm production and productivity. In the North Eastern Transitional Zone (Zone-1) and North Eastern Dry Zone (Zone-2) of the Hyderabad Karnataka Region, this integrated approach was put into practice through the "Integrated Farming System for Sustainable Livelihood – An UAS Dharwad Approach" project, which was funded by the Karnataka government, between 2010 and 2011. Using the Participatory Rural Appraisal (PRA) technique, a total of 83 farm families were identified, and their farming situations were thoroughly analyzed and documented. This information served as the foundation for redesigning farming activities to create customized Integrated Farming System (IFS) modules. The tangible outcomes and quantified benefits of this initiative are as follows: Significant increases in mean productivity were observed, with a 19% improvement in cereals, 27% in pulses, 15% in oilseeds, and 14% in commercial crops. Maize demonstrated the highest Sustainable Yield Index (0.86) among field crops, while ridge gourd achieved the highest Sustainable Yield Index (0.85) among vegetable crops. The introduction of IFS resulted in an incremental Benefit-Cost ratio (B:C) of 3.46, indicating enhanced economic security among the 83 farm families. The integration of various enterprises led to a notably higher Sustainable Value Index compared to individual enterprises. The adoption of labor-saving equipment, such as saral kurupi, improved sickles, cycle weeders, and rakes, resulted in significant reductions in drudgery (27.62%, 47.16%, 25.41%, and 40.11%, respectively), translating into labor cost savings ranging from Rs. 1095 to 1799 per hectare. Whole-farm net returns increased from Rs. 1,26,777 to 2,00,988 between the base year of 2009-10 and the assessment year of 2011-12, thanks to the implementation of IFS. The enhanced economic security for farm households and the beneficial effects of the technologies were demonstrated by the improved B:C ratio of 3.46.Food consumption patterns showed increases in the consumption of milk, cereals, vegetables, and eggs, contributing to improved nutritional security. The project generated an additional 29 man-days of employment per farm, addressing employment security concerns. Overall, the project's successes greatly improved the food, economic, and livelihood security of farm families in Hyderabad, Karnataka's Zones 1 and 2, which include both arid and transitional areas.
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Conference papers on the topic "Ratoon Cropping"

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Zhang, Yixin, Wenhao Fan, and Yuxia Cheng. "Flexible Image Cropping with User-Defined Aspect Ratios." In 2024 International Conference on Cyberworlds (CW). IEEE, 2024. https://doi.org/10.1109/cw64301.2024.00076.

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Kintl, Antonin, Julie Sobotkova, Jakub Elbl, and Martin Brtnicky. "QUALITY OF POST-HARVEST RESIDUES WHEN GROWING MAIZE IN THE SYSTEM OF MIXED CROPPING." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s13.34.

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Potential environmental impacts of growing maize as monoculture lead to efforts focused on finding other potentially suitable crops or their combinations that could replace the pure maize cultures. The most frequent and most effective combination is a mixed crop of maize and legumes. The presented paper deals with the issue of the quality of post-harvest residues when growing maize in the system of mixed cropping. In the field experiment, yield and quality of post-harvest residues were studied during the growing season in the following variants: maize grown as monoculture and maize grown in the mixed culture with bean. Compared with the C:N ratio in the post-harvest residues of maize grown in monoculture (39:1), a benefit of mixed cropping was significantly reduced C:N ratio in the biomass of post-harvest residues that was approaching 30:1 which is considered optimal for their decay. The biomass of post-harvest residues from the mixed crop of maize and bean for silage contained by 70 kg/ha (54 %) more nitrogenous substances than the biomass of post-harvest residues from the pure maize culture.
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Fawcett, Jim, and Tom Miller. "Double Cropping Field Peas After Winter Wheat for Swine Rations." In Proceedings of the 13th Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2004. http://dx.doi.org/10.31274/icm-180809-777.

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Li, Debang, Junge Zhang, and Kaiqi Huang. "Learning to Learn Cropping Models for Different Aspect Ratio Requirements." In 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2020. http://dx.doi.org/10.1109/cvpr42600.2020.01270.

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Cavalcanti, C. S. V. C., H. M. Gomes, and J. E. R. de Queiroz. "Combining Multiple Image Features to Guide Automatic Portrait Cropping for Rendering Different Aspect Ratios." In Internet-Based Systems (SITIS 2010). IEEE, 2010. http://dx.doi.org/10.1109/sitis.2010.21.

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Cubukcu, Pinar, Korhan Sahar, and C. Aylin Oluk. "Oil, protein content and fatty acid compositions of soybean genotypes evaluated in double cropping system at the eastern mediterranean in Turkey." In VIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2021. http://dx.doi.org/10.53040/gppb7.2021.100.

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Soybean (Glycine max (L.) Merrill) is very important crop for food, protein, and oil both human and animal feeding. The aim of this study determinate oil ratio, protein ratio and fatty acid compositions of Soybean breeding lines developed from Eastern Mediterranean Agricultural Research Institute (EMARI). This study was conductucted in double cropping system at the Eastern Mediterranean Agricul-tural Research Institute ( EMARI), Turkey in 2019 growing seasons. Through this study, it was realised that the fatty acid composition of soybean lines ranged from 11.34-9.80 for palmitic acid, 4.30-6.54% for stearic acid, 26.16-34.11% for oleic acid, 42.82-48.12% for linoleic, and 4.54-5.43% for linolenic acid in double cropped soybean. Oil content was found 22.4%, protein content was 40.9 % DA 12-14-3 and DA 12-15-39-40 soybean lines repectively.
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ARLAUSKIENĖ, Aušra, Viktorija GECAITĖ, and Danutė JABLONSKYTĖ-RAŠČĖ. "THE EVALUATION OF THE COMPATIBILITY OF CEREAL AND GREEN MANURE ON THE BASIS OF NUTRIENTS." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.039.

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Research was carried out at the Lithuanian Research Centre for Agriculture and Forestry’s (LAMMC) Joniškėlis Experimental Station on a clay loam Endocalcari Endohypogleyic Cambisol. The study was aimed to explore the aboveground mass of perennial forage legumes: red clover (Trifolium pratense L.) and lucerne (Medicago sativa L.), and their mixtures with festulolium (x Festuliolium), used as green manure, qualitative parameters and compatibility with cereals on the basis of nutrients nitrogen (N), phosphorus (P) and potassium (K). The deficiency of other nutrients (P, K) and intensity of green manure mineralization can lead to N absorption. It has been determined that winter wheat takes one kg of N together with 0.2 kg P and 0.6 kg K. Spring wheat requires a similar amount of P but a higher amount of K. Average winter wheat grain yield can be 4.0 t ha-1 on a clay loam Cambisol in organic cropping system. NPK content – 134 kg ha-1 is needed for such productivity (grain + straw). This content is lower for spring winter growing. P:N and K:N ratios are more favourable in perennial forage legume mixture with festulolium, as compared to legume alone. To obtain grain yields of 4 t ha-1 of winter wheat and 3 t ha-1 of spring wheat in balanced organic crop rotation it is sufficient to apply 3.0 and 2.0 t ha-1 DM of pure legume mass as green manure. “Cut-and-carry” fertilisers do not satisfy the wheat demand for P.
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