Crop performance and water use efficiency in aerobic rice (Oryza sativa L.) relative to irrigation schedule, planting geometry, and method of planting in northern transition zone of Karnataka, India.

Basha, S. Jaffar; Basavarajappa, R.; Babalad, H. B.

doi:10.1007/s10333-016-0548-9

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…Optimum plant population in 20 cm row spacing helped for efficient use of nutrients, moisture, and efficient harvest of solar energy due to lesser weed population might have helped in higher production of tillers m -2 compared to wider spacing. The results were in agreement with Joshi et al ( 2016) in direct seeded rice; Basha et al (2017), Gautam et al (2018) in dry seeded irrigated rice.…”

Section: Tiller Dynamicssupporting

confidence: 92%

Tiller Dynamics, Leaf Area and Spad Meter Ofrice Varieties Influenced by Different Spacing Under Semi-Dry Condition

Ajmal,

Fathima,

Murthy

et al. 2023

IJEP

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The field experiment was conducted at College of Agriculture, (V. C. Farm), Mandya, University of Agricultural Sciences, Bengaluru, Karnataka, India during kharif, 2019 and 2020. Soil from experimental site was under sandy loam in texture with 70.50, 15.80 and 13.70% sand, silt and clay, respectively. Soil was alkaline in reaction with pH of 9.02 and low in electrical conductivity (0.37 dS m-1). The fertility status of the soil at experimental site was low in organic carbon (0.39%), available nitrogen (182.12 kg N ha-1) and available potassium (122.32 kg K2O ha-1), however it was high in available phosphorus (78.74kg P2O5ha-1). Results indicated that maximum leaf area, SPAD meter reading and tiller production at different days observed in narrow spacing (20 cm row spacing) compared to wider row spacing (30 cm row spacing). Among the different varieties tested, significantly higher leaf area, SPAD meter reading and tiller production was recorded in KMP- 175 and Rasi compared to other varieties.

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Section: Tiller Dynamicssupporting

confidence: 92%

Tiller Dynamics, Leaf Area and Spad Meter Ofrice Varieties Influenced by Different Spacing Under Semi-Dry Condition

Ajmal,

Fathima,

Murthy

et al. 2023

IJEP

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“…For millions of people worldwide, rice (Oryza sativa L.) is the staple food that forms a key energy source for over 50% of the world's population [1,2]. In Eastern India, rice is predominantly grown on rainfed uplands in rainy season (June-October) with low average productivity of about 1-1.4 t ha -1…”

Section: Introductionmentioning

confidence: 99%

Agronomic Practices to Enhance Nutrient Acquisition, Grain Quality, Resource-Use Efficiency in Direct- Seeded Aerobic Rice in Eastern India

Singh

Dass

Dhar

et al. 2020

CJAST

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Aim: Rice (Oryza sativa L.) is mainly grown in the rainy season in eastern India on rainfed uplands with a low average productivity of 1.0-1.4 t ha-1. Erratic rainfall leading to moisture stress and poor cultivation practices are the key reasons for low yields and rice grain quality in the area. Hence, the current study was designed to investigate the effects of irrigation scheduling, soil adjuvant and sowing methods on yield, grain quality and resource-use efficiency in aerobic rice. Methodology: The experiment was conducted in a three-time replicated split-plot design during rainy-season of 2016 on a sandy loam soil in Eastern India. Treatments included 8 combinations of 4-irrigation schedules, viz., irrigation at IW/CPE 0.9, 1.2, 1.5 and no-irrigation (rainfed) and 2-soil adjutants (soil adjuvant applied and no-soil adjuvant) assigned to main-plots, and 2-planting methods (conventional dry seeding at 20 cm row spacing and spot-sowing (dibbling of 4-seeds hill-1 at 20×15 cm interval) assigned to sub-plots. Results: Irrigation at IW/CPE 1.5 increased grain yield by 37.3% over rainfed crop, 23% over crop irrigated at IW/CPE 0.9 and 13.5% over IW/CPE 1.2. Grain quality parameters were also best, in crop watered at IW/CPE 1.5. Net return, B: C ratio, net energy output, production efficiency (PE) and monetary efficiency (ME) were significantly greater with irrigation at IW/CPE 1.5 compared to other irrigation schedules. Spot-sowing proved superior to conventional drilling of seeds exhibiting about 7% improvement in grain yield and water-use efficiency (WUE). Effect of soil adjuvant application was not significant. Interpretation: This study emphatically demonstrated that aerobic rice should be spot-sown and irrigated at IW/CPE 1.5, for obtaining higher yield with better grain quality. The findings are useful for aerobic rice production in eastern India and adjoining sub-humid regions.

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Importance of Soil Management in Sustainable Agriculture

Pattnaik,

Sahu,

Choudhury

et al. 2023

Climate-Resilient Agriculture, Vol 1

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Crop performance and water use efficiency in aerobic rice (Oryza sativa L.) relative to irrigation schedule, planting geometry, and method of planting in northern transition zone of Karnataka, India.

Cited by 8 publications

References 7 publications

Tiller Dynamics, Leaf Area and Spad Meter Ofrice Varieties Influenced by Different Spacing Under Semi-Dry Condition

Tiller Dynamics, Leaf Area and Spad Meter Ofrice Varieties Influenced by Different Spacing Under Semi-Dry Condition

Agronomic Practices to Enhance Nutrient Acquisition, Grain Quality, Resource-Use Efficiency in Direct- Seeded Aerobic Rice in Eastern India

Importance of Soil Management in Sustainable Agriculture

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