Crop Establishment and Nutrient Management for Dry Season (Boro) Rice in Coastal Areas

Sarangi, Sukanta K.; Maji, B.; Singh, Sudhanshu; Sharma, Dinesh Kumar; Burman, D.; Mandal, Subhasis; Haefele, Stephan M.

doi:10.2134/agronj14.0182

Cited by 27 publications

(10 citation statements)

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“…The majority of them are smallholders, facing severe poverty and regular hunger periods because of low land productivity and limited alternatives. Rice productivity in the coastal region is low and unstable because of the persistence of several abiotic stresses like waterlogging in the wet season and soil and water salinity in both wet and dry seasons ( Sarangi et al, 2014 , Sarangi et al, 2016 ). The assumption in this study is that the rice productivity in these areas can be enhanced by developing and disseminating suitable stress tolerant varieties presently not accessible to farmers.…”

Section: Discussionmentioning

confidence: 99%

“…In the dry (winter) season, rice is grown on a limited area (20%), and most of the remaining fields are left fallow due to lack of good quality water for irrigation and high soil salinity. Cultivation of rice during the dry season in coastal saline soils is challenging and requires careful choices of suitable rice varieties and good management practices ( Sarangi et al, 2014 ). In both seasons, the productivity of rice is low due to high soil and water salinity, waterlogging, and submergence, besides other problems.…”

Section: Introductionmentioning

confidence: 99%

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Participatory evaluation guides the development and selection of farmers’ preferred rice varieties for salt- and flood-affected coastal deltas of South and Southeast Asia

Burman

Maji

Singh³

et al. 2018

Field Crops Research

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Rice is the staple food and provides livelihood for smallholder farmers in the coastal delta regions of South and Southeast Asia. However, its productivity is often low because of several abiotic stresses including high soil salinity and waterlogging during the wet (monsoon) season and high soil and water salinity during the dry season. Development and dissemination of suitable rice varieties tolerant of these multiple stresses encountered in coastal zones are of prime importance for increasing and stabilizing rice productivity, however adoption of new varieties has been slow in this region. Here we implemented participatory varietal selection (PVS) processes to identify and understand smallholder farmers’ criteria for selection and adoption of new rice varieties in coastal zones. New breeding lines together with released rice varieties were evaluated in on-station and on-farm trials (researcher-managed) during the wet and dry seasons of 2008–2014 in the Indian Sundarbans region. Significant correlations between preferences of male and female farmers in most trials indicated that both groups have similar criteria for selection of rice varieties. However, farmers’ preference criteria were different from researchers’ criteria. Grain yield was important, but not the sole reason for variety selection by farmers. Several other factors also governed preferences and were strikingly different when compared across wet and dry seasons. For the wet season, farmers preferred tall (140–170 cm), long duration (160–170 d), lodging resistant and high yielding rice varieties because these traits are required in lowlands where water stagnates in the field for about four months (July to October). For the dry season, farmers’ preferences were for high yielding, salt tolerant, early maturing (115–130 d) varieties with long slender grains and good quality for better market value. Pest and disease resistance was important in both seasons but did not rank high. When farmers ranked the two most preferred varieties, the ranking order was sometimes variable between locations and years, but when the top four varieties that consistently ranked high were considered, the variability was low. This indicates that at least 3–4 of the best-performing entries should be considered in succeeding multi-location and multi-year trials, thereby increasing the chances that the most stable varieties are selected. These findings will help improve breeding programs by providing information on critical traits. Selected varieties through PVS are also more likely to be adopted by farmers and will ensure higher and more stable productivity in the salt- and flood-affected coastal deltas of South and Southeast Asia.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Participatory evaluation guides the development and selection of farmers’ preferred rice varieties for salt- and flood-affected coastal deltas of South and Southeast Asia

Burman

Maji

Singh³

et al. 2018

Field Crops Research

Self Cite

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“…Practices such as optimum seeding density, proper seedling age, careful handling at transplanting, and balanced nutrient supply, were reported to help mitigate the adverse effects of floods and other abiotic stresses following transplanting (Ram et al, 2009;Ella and Ismail, 2006;Ella et al, 2011;Ismail et al, 2012;Sumon et al, 2013;Gautam et al, 2014;Bhowmick et al, 2014), however, the effectiveness of these practices have not been sufficiently validated for saline coastal areas. Integration of locally available organic sources of nutrients such as farmyard manure (FYM) with fertilizer recommendations was reported to be effective for rice in coastal areas (Sarangi et al, 2014). Use of healthy seedlings could improve the productivity of transplanted rice in saline coastal zones as high salinity stress retards elongation of transplanted seedlings and reduces nutrient availability during early growth.…”

Section: Introductionmentioning

confidence: 99%

Improved nursery management further enhances the productivity of stress-tolerant rice varieties in coastal rainfed lowlands

Sarangi

Maji

Singh³

et al. 2015

Field Crops Research

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a b s t r a c tThe productivity of rice in most tropical coastal areas of Asia is low because of the predominance of several abiotic and biotic stresses, use of long duration traditional landraces or old varieties and suboptimal management practices. A combination of high-yielding, stress-tolerant rice varieties and good management practices is necessary to enhance the productivity of these areas. Suboptimal nursery management using traditional methods practiced in these areas often leads to a reduced plant population because of seedling mortality leading to poor yields. Nursery management practices that suit the new stresstolerant varieties recently becoming available need to be developed to increase the productivity of rice. On-station and on-farm trials on nursery management were conducted using improved rice varieties to study the effect of seed density, nutrient management in the nursery, and seedling age at transplanting on grain yield. Lower seed density and application of balanced nutrients produced healthy and taller seedlings with high seedling vigor index (SVI) in the nursery and with subsequent significant increase in grain yield after transplanting in the main field. Combining inorganic and organic fertilizers in the seedbed (50-30-15 kg N-P 2 O 5 -K 2 O ha -1 + 5 t ha -1 farm yard manures; FYM) enhanced seedling growth (dry weight, shoot and root length, number of green leaves, leaf area) and leaf nitrogen concentration. Forty-d-old seedlings produced significantly higher yield than 25-d-old seedlings. Transplanting older seedlings is important in systems without good water control, un-leveled fields, and soils affected by salt stress; and taller seedlings help avoid losses caused by floods. The highest benefit/cost ratios of 1.82, 1.72 and 1.91 were observed when transplanting 40-d-old seedlings using a seed density of 25 g m −2 and with balanced nutrient application of 50-30-15 kg N-P 2 O 5 -K 2 O + 5 t FYM ha −1 , respectively. In the on-farm trials, the yield advantages when using new stress-tolerant rice varieties Swarna-Sub1 and Amal-Mana with improved nursery management practices were 23% and 47%, in comparison with farmers' nursery management and farmers' variety, respectively. These cost-effective nursery management approaches have great potential for enhancing yield in stress-prone rainfed coastal areas and will help sustain rice yield while ensuring sustainability of the cropping system.

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“…Manage water which can improve the circulation of air in the soil and manure as basal fertilizer to add nutrients in the soil as a supply of humus to improve soil structure and encourage the life of microorganisms soil to improve plant growth (Kato et al, 2009). Rice productivity in the local commonly cultivated in dry land and when cultivated in the wetlands, the growth of the plant is not stable so that growth and the results are low, due to the effect of pressure abiotic puddles continuous and nutrients is not enough (Sarangi et al, 2014;Sarangi et al,2016). Pressure abiotic delaying or reducing the growth of seedlings of rice inhibits root growth and elongation of shoots, produces components uneven growth, and ultimately lead to loss of crops (Sipaseuth et al,2007 One effort that can be done is through the test of the stability of the superior properties possessed by each variety produced in order to obtain improved varieties that are able to adapt and interact in a specific environment (Edi Mukhlis, 2000).…”

Section: Discussionmentioning

confidence: 99%

CHARACTERIZATION AND EVALUATION OF APPEARANCE RICE (Oryza sativa L.) LOCAL EAST TIMOR AND RICE INDONESIA

Baptista

Damanhuri

Barunawati

2018

Int. J. Res. Granthaalayah

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Rice is an important commodity for the majority of the population, especially in the continent of Asia use rice as a staple food. The state of Indonesia and East Timor, rice as the main food source that needs continue to increase because in addition to the population continues to grow at a rate of increase of about 2% per year, as well as the change in consumption pattern of the population of non-rice to the rice. Interest characterization and evaluation of the appearance of rice(Oryza Sativa L.) locally Timor Leste and Indonesian rice are getting Local rice genotypes Timorese suitable for cultivated in paddy fields. This research using a randomized block design (RBD) consisted of 9 treatments and 3 replications. The materials used are high-yielding rice varieties namely IR-3 64, Ciherang, Cimelati and 6 local rice genotypes Timor Leste, namely Hare Foam, Fafulu Hare, Hare Bauk Morin, Mean Hare, Hare and Hare Modok Fulan. Results showed that the highest plant length at the age of 10 MST contained in the local rice Hare Bauk Morin(134.67 cm), Number of tillers(40.30) the number of leaves(4.64).Flowering date and time of harvest shortest genotypes present in Morin namely Hare Bauk flowering date (39 days) and time of harvest (105 days). The highest number of panicles contained in Hare Mean genotype, high-yielding varieties IR64, Ciherang and Cimelati. The length of the longest panicle genotypes present in Foam Hare, Hare Hare Fafulu, and Fulan. The number of filled grains per panicle most contained in superior varieties IR64, Ciherang and Cimelati. The highest weight of 1000 grains contained in Cimelati varieties (vu3) with Hare Bauk Morin, IR64 and Cherang varieties. The highest rice yield for local rice genotypes present in Hare Bauk Morin (G3) of 9.79 ton.Ha-1 while yielding varieties there exist varieties Cherang (vu2) of 9.74 ton.Ha-1.

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Crop Establishment and Nutrient Management for Dry Season (Boro) Rice in Coastal Areas

Cited by 27 publications

References 12 publications

Participatory evaluation guides the development and selection of farmers’ preferred rice varieties for salt- and flood-affected coastal deltas of South and Southeast Asia

Participatory evaluation guides the development and selection of farmers’ preferred rice varieties for salt- and flood-affected coastal deltas of South and Southeast Asia

Improved nursery management further enhances the productivity of stress-tolerant rice varieties in coastal rainfed lowlands

CHARACTERIZATION AND EVALUATION OF APPEARANCE RICE (Oryza sativa L.) LOCAL EAST TIMOR AND RICE INDONESIA

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