Internal Versus Edge Row Comparison in Jajar Legowo 4:1 Rice Planting Pattern at Different Frequency of Fertilizer Applications

Kartika, Kartika; Lakitan, Benyamin; Sanjaya, Nanda; Wijaya, Andi; Kadir, Sabaruddin; Kurnianingsih, Astuti; Widuri, Laily Ilman; Siaga, Erna; Meihana, Mei

doi:10.17503/agrivita.v40i0.1715

Cited by 17 publications

(15 citation statements)

References 26 publications

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“…The effect of priming treatment on rice vegetative growth was mainly exhibited on development of tillers. Number of tillers is important since it determines number of panicles produced and potential yield in rice crop (Kartika et al, 2018a). Higher number of tillers was produced in hydro-priming treatment compared to osmo-priming with 10% to 20% PEG concentrations (Figure 1).…”

Section: Carry-over Effects Of Seed Priming On Vegetative Growthmentioning

confidence: 99%

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Kartika

Lakitan

Ria

2021

CMUJNS

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Drought stress during vegetative and/or generative stages could cause massive reduction in rice yield. This study evaluated effectiveness of hydro- and osmo-priming on improving seed germination, growth and development of upland rice under drought stress during late vegetative, booting, or heading stage. Treatments consisted of hydro-priming and osmo-priming consisted of three polyethylene glycol (PEG) concentrations i.e. 10%, 15%, and 20%. Results showed that application of osmo-priming at 10% PEG required longer time (21.93 hours) to reach 50% germination, lower germination and lower vigor index. However, after germination, seeds primed with 10% PEG exhibited better seedling growth than other seed priming treatments. Effects of seed priming on yield components were overshadowed by drought exposures. Drought imposed during vegetative stage did not significantly affect yield; however, regardless of seed priming treatments, yield reduction was inevitable in rice plants exposed to drought during booting or heading stages. Rice plant shortened time to reached physiological maturity as an adaptive mechanism if drought treatment was applied during heading stage. Keywords: Germination, Polyethylene glycol, Seedling growth, Seed priming, Yield component

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Section: Carry-over Effects Of Seed Priming On Vegetative Growthmentioning

confidence: 99%

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Kartika

Lakitan

Ria

2021

CMUJNS

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“…Lakitan et al (2018) found that number of leaves at late vegetative growth stage was higher in rice plants grown on biochar-treated soil. Kartika et al (2018a) also reported that biochar affected leaf area ratio. Moreover, there were significantly higher leaf area index in rice plants at edge rows compared to those at internal rows in 4:1 Jajar-Legowo planting system (Kartika et al, 2018b).…”

Section: No Effect Of Substrate On Number Of Seedling Leavesmentioning

confidence: 92%

“…Local farmers very rarely grow rice twice per year. Therefore, cropping intensity is low (Kartika et al, 2018a). Rice growing season at this ecosystem is started after floodwater has subsided to less than 15 cm and harvested during dry season (Lakitan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Decaying Utricularia-biomass versus soil-based substrate for production of high quality pre-transplanted rice seedlings using floating seedbeds

Ramadhani¹,

Lakitan²,

Hasmeda³

2018

Aust J Crop Sci

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Rice growing season at riparian wetlands in Indonesia is started at the end of rainy season before floodwater completely subsides. However, available materials for nursery substrate are limited during flooding period of the wetlands. This study aimed to evaluate three available and affordable substrates for producing high quality rice seedlings. The three substrates evaluated were decaying biomass of Utricularia vulgaris (DBUv); mixed of soil and U. vulgaris biomass plus biochar (SUv+B); and soil amended with biochar (S+B). Rice seedling preparation was done using modified floating seedbeds, adjusted specifically for light weight load of the evaluated substrates. Results of this study indicated that seedlings sown on DBUv substrate were significantly taller than those on S+B or DBUv substrate at 21 DAS. Roots of seedlings sown on DBUv substrate exhibited minimum broken root tips, when they were pulled off the substrate, while more broken root tips were observed in those sown on SUv+B and S+B substrates, causing significantly more shorter intact roots. Broken root tip was closely related to substrate porosity. DBUv substrate had significantly higher porosity than SUv+B and S+B substrates. There were no significant differences in number of leaves and chlorophyll concentration index (CCI) among seedlings grown on all substrates. Better performance of seedlings grown on DBUv substrate was more pronounced on 21-day-old seedlings; therefore, it is recommended to farmers to use DBUv substrate and do transplanting of rice seedlings to paddy field at age of 21-day-old.

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“…In some cases, minor adjustment in agricultural practices, without any significant additional cost for inputs, can increase yield. Kartika et al (2018) reported that planting pattern and split N fertilizer application increased leaf chlorophyll and nitrogen content during vegetative stage and yield in rice cultivated at riparian wetlands. Increase in rice yield was also reported by Cahyono & Hartati (2013) if P fertlitizer was splitted into two or three times of application.…”

Section: Affordable Technologies and Their Impactsmentioning

confidence: 99%

Inclusive and Ecologically-Sound Food Crop Cultivation at Tropical Non-Tidal Wetlands in Indonesia

et al. 2019

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Productivity and cropping intensity on non-tidal wetland in South Sumatra are considerably low and has been underutilized up to now. The majority of farmers in this ecosystem are smallholders with limited adoption capacity on introduced technologies and modern agricultural practices. The objectives of this research were (1) to comprehensively capture multidimensional constrains that restrained local farmers in increasing their agricultural productivity; and (2) to identify, assess, and develop substantially-relevant, financially-affordable, and sociallyacceptable agricultural technologies and practices for smallholder farmers to increase productivity. This research was organized in three main activities: qualitative research employing Grounded Theory procedure, quantitative questionnaire-guided survey, and a series of laboratory and field experiments. The research results indicated that the main constraints in increasing productivity and cropping intensity on the non-tidal wetland in South Sumatra include (1) unpredictable flooding occurrence and low soil nutrients content (agronomic constraint), (2) low financial and technology adoption capacity of local farmers (economic constraint), and (3) public policy has not significantly escalated farmer's motivation to increase food production (social and institutional constraint). This research suggests that multidimensional (technical, financial, ecological, and socio-cultural) approaches should be integrated in collective efforts for sustainably intensifying food production on the non-tidal wetland.

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Internal Versus Edge Row Comparison in Jajar Legowo 4:1 Rice Planting Pattern at Different Frequency of Fertilizer Applications

Cited by 17 publications

References 26 publications

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Decaying Utricularia-biomass versus soil-based substrate for production of high quality pre-transplanted rice seedlings using floating seedbeds

Inclusive and Ecologically-Sound Food Crop Cultivation at Tropical Non-Tidal Wetlands in Indonesia

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