Performance of rice varieties grown under different spacings with planting depths in system of rice intensification

Rajput, Archana; Rajput, Sujit Singh; Jha, Girish

doi:10.5958/2230-732x.2016.00107.8

Cited by 3 publications

(4 citation statements)

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“…Significantly higher LAI was observed under the conventional method of planting while lower LAI was recorded when spacing was increased and the least was noticed in the widest spacing level tested (25 x 25cm). Our findings are parallel with the results reported by Rajput et al (2016). Higher LAI at closer spacing was due to the increase in number of tillers and hence, more number of leaves in a unit area without much variation in leaf breadth when compared to wider spacing levels.…”

Section: Growth Characterssupporting

confidence: 92%

Influence of High Density Planting under Modified System of Rice Intensification on Growth, Root Characteristics and Yield of Rice in Western zone of Tamil Nadu

Saju¹,

Thavaprakaash²

2020

Madras Agricultural Journal

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A field experiment was conducted during the late Samba (September-January) season of 2018-19 to evaluate the growth, root characters, and yield of rice due to high-density planting. The soil of the experimental field was clay loam in texture with a neutral reaction. The experiment consisted of eight treatments with different spacing and fertilizer levels such as T 1-25cm x 25cm with 100% Recommended Dose of Fertilizers (RDF), T 2-25cm x 20cm with 100% RDF, T 3-25cm x 15cm with 100% RDF, T 4-25cm x 15cm with 125% RDF, T 5-20cm x 20cm with 100% RDF, T 6-20cm x 15cm with 100% RDF, T 7-20cm x 15cm with 125% RDF and T 8-Conventional cultivation (20cm x 10cm with 100% RDF) and replicated thrice. The results revealed that significantly taller plants were recorded with all SRI treatments (T 1 to T 7) compared to conventional planting in all the stages except at maturity, which resulted in non-significant results. A reverse trend was noted with leaf area index and straw yield. Root length and root volume of rice were higher in wider planted treatments (T 1 , T 2 , and T 5) than other closer spaced treatments with the least in T 8. Treatments T 5 , T 4 and T 3 produced significantly higher grain yield over other treatments with the minimum in T 8. The results inferred that too wider and too closer spacing levels under the SRI method would lead to a reduction in yield though other growth parameters were recorded more.

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Section: Growth Characterssupporting

confidence: 92%

Influence of High Density Planting under Modified System of Rice Intensification on Growth, Root Characteristics and Yield of Rice in Western zone of Tamil Nadu

Saju¹,

Thavaprakaash²

2020

Madras Agricultural Journal

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“…MTU 1153 recorded highest number of panicles m -2 (310), panicle length (24.42 cm), panicle weight (3.60 g) and percentage of filled grains panicle -1 (87.77%) as compared with other varieties. Similar results also reported by Rajput et al, (2016), Shukla et al, (2015 and Pal and Mahunta (2010). Phillip et al, (2012), Reddy and Kulakarni (2007) were reported that significant increase in yield attributes with increase in nitrogen rate from 50% RDN to 150% RDN.…”

Section: Yield Attributessupporting

confidence: 89%

Influence of Nitrogen on Economics of Medium duration Rice Varieties

Sivaleela¹,

Srinivas²,

Rao³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…One such water saving irrigation method is the system of rice intensification (SRI). The major SRI principles include raising seedlings in carefully managed nurseries, careful transplanting of single, young (8–15 days old) seedlings at wide plant spacing (starting at 250 mm × 250 mm, and going up to 500 mm × 500 mm), intermittent irrigation to avoid permanent flooding during the vegetative growth phase, and intensive manual or mechanical weed control without herbicide use . Some recent studies by other researchers ,,,, have already represented the positive response of the SRI in terms of water productivity.…”

Section: Introductionmentioning

confidence: 99%

“…The major SRI principles include raising seedlings in carefully managed nurseries, careful transplanting of single, young (8–15 days old) seedlings at wide plant spacing (starting at 250 mm × 250 mm, and going up to 500 mm × 500 mm), intermittent irrigation to avoid permanent flooding during the vegetative growth phase, and intensive manual or mechanical weed control without herbicide use . Some recent studies by other researchers ,,,, have already represented the positive response of the SRI in terms of water productivity. According to them, the plants grown under the SRI consisted of more open architecture, with tiller spread out more widely, covering more ground area and more erect leaves that avoided mutual shading of leaves.…”

Section: Introductionmentioning

confidence: 99%

Water Use Efficiencies, Productivities, and Footprints of Rice under a System of Rice Intensification Practice

Biswas

Mailapalli

Raghuwanshi

et al. 2021

ACS Agric. Sci. Technol.

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Adoption of a system of rice intensification (SRI) practice for rice production needs thorough investigation on the amount of water utilized in rice fields as water flow involves interaction of very complex processes, leading to different pathways of water losses. Hence, a field study was carried out during kharif and rabi seasons of 2015–16 and 2016–17, to investigate the effect of the SRI practice on water use efficiencies, productivities and water footprints. Two water treatment experiments (conventional and SRI) with six replications were laid out in the experimental plots. Nonweighing lysimeters, installed in neighboring plots were used to measure the water balance components under both water management practices. Results showed that the considerable reduction in water input (21% in kharif and 18% in rabi seasons) for the SRI cut the deep percolation drastically by 24–29% and 23% in kharif and rabi, respectively. There was no considerable reduction in evapotranspiration under the SRI with comparison to conventional practices. Grain yield was significantly increased by 23–30% and 20–29% under the SRI in kharif and rabi seasons, respectively. Hence, a significant (p < 0.05) fall in consumptive water footprint (19–26% in kharif and 18–24% in rabi) was achieved under the SRI. On average, the crop water use efficiency was enhanced by 25–26% and 19–20% in respective kharif and rabi under the SRI practice. Significant improvement in total water productivity by 56–66% and 46–56% in respective two seasons was also observed in the SRI during the two years of field experiments.

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Performance of rice varieties grown under different spacings with planting depths in system of rice intensification

Cited by 3 publications

References 0 publications

Influence of High Density Planting under Modified System of Rice Intensification on Growth, Root Characteristics and Yield of Rice in Western zone of Tamil Nadu

Influence of High Density Planting under Modified System of Rice Intensification on Growth, Root Characteristics and Yield of Rice in Western zone of Tamil Nadu

Influence of Nitrogen on Economics of Medium duration Rice Varieties

Water Use Efficiencies, Productivities, and Footprints of Rice under a System of Rice Intensification Practice

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