Agronomic manipulation in main season and ratoon rice influences growth, productivity, and regeneration ability in tropical lowlands

Lal, Banwari; Gautam, Priyanka; Nayak, A. K.; Raja, R.; Panda, B.B.; Tripathi, Rahul; Shahid, Muhammad; Chatterjee, Dibyendu; Bhattacharyya, Pratap; Bihari, P.; Singh, T. V. K.; Meena, Surendra Kumar; Yadav, V.K.; Rathore, V.S.

doi:10.1016/j.fcr.2023.108872

Cited by 8 publications

(7 citation statements)

References 27 publications

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“…It has been considered that crop duration of ratoon crop is also regulated by stubble cutting and with low cutting height, crop duration can be extended ( Wang et al, 2020 ). Yang et al (2022) supported this theory, whereas studies from Japan and India had the opposite result ( Nakano et al, 2022 ; Lal et al, 2023 ). This could be also attributed to the varietal difference in adaptation to cutting height.…”

Section: Discussionmentioning

confidence: 91%

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Ratoon rice research: Review and prospect for the tropics

Saito,

Dossou-Yovo,

Ibrahim

2024

Field Crops Research

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Section: Discussionmentioning

confidence: 91%

“…Some studies were promising (e.g., Adigbo et al, 2012 ), whereas others showed significant yield reduction in the second season (e.g. Lal et al, 2023 ). With good agronomic practices, ratoon rice could give a yield equivalent to 60% of that of the main crop ( Wang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Ratoon rice research: Review and prospect for the tropics

Saito,

Dossou-Yovo,

Ibrahim

2024

Field Crops Research

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“…The best time for cutting the main crop to achieve good ratooning is when the culms are still greenish [14]. In India, Lal et al [38] found that both the main crop (MC) and the ratoon crop (RC) performed better when planted at the normal planting time (first week of July). The ratoon crop from normal planting recorded 12.9% more panicles and 8.4% more fertile grains per panicle compared to late planting (third week of July).…”

Section: Time Of Sowing/planting and Harvesting Of Main Cropmentioning

confidence: 99%

“…Introducing direct-seeded rice into the ratoon rice system to create direct-seeded ratoon rice (DSR-RR) is a promising approach for sustainable development.Previous studies have shown that DSR-RR systems can achieve comparable ratoon season yields and annual yields to transplanting ratoon rice [11]. However, there have been variations in the performance of DSR-RR, with some studies reporting lower ratoon crop yields compared to the main crop [38]. Factors such as poor and uneven crop establishment, weed control issues, and lodging susceptibility in direct-seeded rice could be responsible for the decreased grain yield in DSR-RR [59].…”

Section: Main Crop Establishmentmentioning

confidence: 99%

Rice Ratooning: A Pioneering Strategy for Enhancing Rice Productivity and Embracing Climate Change Adaptation and Mitigation

Maurya,

Sarma,

Tamuly

et al. 2023

IJPSS

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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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“…Before direct seeding in paddy fields, it is often necessary to prepare rice seeds by sunlight drying, sorting, soaking and germinating to shorten the rice growth period. These processes continue until seedlings with a length of 1-2 mm are obtained, after which they are ready for planting [24,25]. Previous studies have generally used an ellipsoidal model with multiple particles as a simplified model for rice seeds and did not address the effects produced by sprouting after seed soaking.…”

Section: Introductionmentioning

confidence: 99%

Mechanism Analysis and Experimental Verification of Side-Filled Rice Precision Hole Direct Seed-Metering Device Based on MBD-DEM Simulations

Wang,

Yao,

et al. 2024

Agriculture

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In order to solve the problems of poor hole-filling performance and the high seed-breakage rate of conventional rice bud seed precision hole direct seed-metering devices, a side-filled rice precision hole direct seed-metering device was developed, and the mechanism and force analyses for seeding operations were carried out. The key factors affecting seeding quality were determined: rotation speed, seeding angle and seeding height. By coupling the discrete element method (DEM) and multi-rigid body dynamics (MBD), the seed breakage rate and seeding performance at different rotation speeds were analyzed. Single-factor bench testing was used to analyze the effect of a duckbill unit on seeding performance under different factor levels. The three-factor and five-level quadratic regression orthogonal rotation center combination test methods were used to obtain the optimal working parameter combination. The test results showed that when the rotation speed was 47 r/min, the seeding angle was 19°, and the seeding height was 180 mm, the qualified index of seeding was 92.03%, the hole diameter qualified index was 91.62%, and the hole distance variation index was 7.17%. This study provides a reference for the research of mechanical rice sprouting seed-metering devices.

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Agronomic manipulation in main season and ratoon rice influences growth, productivity, and regeneration ability in tropical lowlands

Cited by 8 publications

References 27 publications

Ratoon rice research: Review and prospect for the tropics

Ratoon rice research: Review and prospect for the tropics

Rice Ratooning: A Pioneering Strategy for Enhancing Rice Productivity and Embracing Climate Change Adaptation and Mitigation

Mechanism Analysis and Experimental Verification of Side-Filled Rice Precision Hole Direct Seed-Metering Device Based on MBD-DEM Simulations

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