scholarly journals Weed dynamics and yield of direct seeded upland autumn rice (oryza sativa l.) Varieties as influenced by integrated weed and nutrient management practices

2018 ◽  
Author(s):  
G Goswami ◽  
N C. Deka ◽  
N J Ojha
Keyword(s):  
Oryza Sativa ◽  
Management Practices ◽  
Nutrient Management ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Direct Seeded ◽  
Weed Dynamics

A field experiment was conducted during autumn, 2014 at ICR Farm, Assam Agricultural University, Jorhat, Assam to compare three different direct seeded upland rice varieties along with different integrated weed and nutrient management practices. The experiment was carried out in factorial randomized block design replicated thrice with 15 treatments involving 3 varieties: Inglongkiri, Maizubiron and Rasi along with 5 treatments of weed and nutrient management,

scholarly journals Genotype selection and addition of fertilizer increases grain yield in upland rice in Suriname

2017 ◽  
Vol 47 (3) ◽  
pp. 185-194 ◽  
Author(s):  
Adriano Stephan NASCENTE ◽  
Ruby KROMOCARDI
Keyword(s):  
Grain Yield ◽  
Management Practices ◽  
Upland Rice ◽  
Block Design ◽  
Field Trials ◽  
Application Rate ◽  
Rice Grain ◽  
Rice Varieties ◽  
Local Conditions ◽  
Randomized Block Design

ABSTRACT The upland rice farmers in Suriname use local varieties and low level technologies in the field. As a result, the upland rice grain yield is low, at about 1 000 kg ha-1. Our objective was to evaluate the use of upland rice cultivars from Suriname and Brazil, and the effect of nitrogen, N, phosphorus, P, and potassium, K, fertilizers on cultivation variables. We undertook four field trials in the Victoria Area, in the Brokopondo District, using a randomized block design each with four replications. The most productive rice varieties were BRS Esmeralda (grain yield 2 903 kg ha-1) and BRS Sertaneja (2 802 kg ha-1). The highest grain yield of 2 620 kg ha-1 was achieved with a top dressing application of 76.41 kg N ha-1 20 days after sowing. For P, the highest grain yield of 3 085 kg ha-1 was achieved with application of 98.06 kg ha-1 P2O5 applied at sowing. An application rate of 31.45 kg ha-1 of K2O at sowing achieved the highest grain yield of 2 952 kg ha-1. Together, these application rates of N, P and K resulted in rice grain yield of about 3 000 kg ha-1, which is three times greater than the national average for upland rice. We demonstrate that the use of improved rice varieties matched to the local conditions, and application of appropriate fertilizers, are management practices that can result in significant increases in rice grain yield in Suriname.

Growth, productivity and nutrient uptake of aerobic rice (Oryza sativa L.) as influenced by different nutrient management practices

2020 ◽  
Vol 57 (1) ◽  
pp. 49-56
Author(s):  
Kalyan Jana ◽  
Ramyajit Mondal ◽  
GK Mallick
Keyword(s):  
Nutrient Uptake ◽  
Management Practices ◽  
Nutrient Management ◽  
Oryza Sativa L ◽  
Block Design ◽  
Growth Yield ◽  
Nutrient Status ◽  
Research Station ◽  
Randomized Block Design ◽  
Treated Plot

A field experiment was undertaken to study the effect of nutrient management on rice cv. Puspa (IET-17509) during pre-kharif season of 2013 and 2014. The experiment was conducted at Rice Research Station, Bankura with eleven different nutrient management practices i.e., N1 = N, P2O5, K2O @ 60, 30, 30 kg ha-1 (RDF);N2 = RDF + Vermicompost @ 2.5 t ha-1; N3 = RDF + FYM @ 5 t ha-1 ; N4 = FYM @ 5 t ha-1, N5 = Vermicompost @ 2.5 t ha-1 ; N6 = RDF + glyricidia (well decomposed) as green manure @ 3 t ha-1; N7 = RDF + ZnSO4 @ 20 kg ha-1 N8 = RDF + borax @ 2 kg ha-1 ; N9 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 ; N10 = RDF +Vermicompost @ 2.5 t ha-1 + borax @ 2 kg ha-1 ; N11 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 + borax @ 2 kg ha-1 respectively in randomized block design comprising of three replications. The result of experiment revealed that rice plot fertilized with the combination of NPK @ 60:30:30 + VC + ZnSO4@ 20 kg ha-1 + borax @ 2 kg ha-1 recorded the highest grain yield of 4.45 t ha-1 which was 56.69 % higher (2.84 t ha-1) than the FYM treated plot. Organic substitution by FYM and vermicompost (VC) had failed to register the significant impact on growth, yield and nutrient uptake. Nutrient uptake and residual nutrient status was also highest in NPK @ 60:30:30 kg ha-1 + VC @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1+ borax @ 2 kg ha-1 fertilized plot.

scholarly journals Examination of Multiple Rice Varieties (Oryza sativa L.) to the Development of Leaf Blight Disease Caused by Curvularia oryzae

2020 ◽  
Vol 9 (2) ◽  
pp. 109-116
Author(s):  
Harman Hamidson ◽  
Effendy Effendy ◽  
Wike Nurwita Dewi ◽  
Shervinia Dwi Ayundra
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Block Design ◽  
Leaf Blight ◽  
Research Station ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Plant Pest ◽  
Blight Disease ◽  
Food Commodity

Hamidson H, Effendy E, Dewi WN, Ayundra SD. 2020. Test of multiple rice varieties (Oryza sativa L.) to the development of leaf blight disease caused by curvularia oryzae. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 109-116.  Rice is the main food commodity in Indonesia, since the  majority of  Indonesian populations use rice as their staple food. One of the common diseases that attack rice plants is leaf blight caused by pathogenic Curvularia oryzae. The objective of this research was to determine the reaction of five varieties of rice resistance to diseases caused by Curvularia oryzae. This research was conducted at Experimental Research Station and Phytopathology Laboratory of the Departement of Plant Pest and Disease, Faculty of Agriculture, Sriwijaya University from August to December 2016. Randomized block design was applied in this experiment by using 5 treatments and 10 replications. The Results showed that the highest percentage of leaf blight disease occured in P3 (Inpari 30) by 22,36% and the lowest percentage was found in P5 (varieties IR 10) by 2,85%. 

scholarly journals Performance of Fifteen F5 Pedigree Upland Rice Lines in Ultisol

Akta Agrosia ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 66-71
Author(s):  
Bagus Edi Luwih ◽  
Rustikawati Rustikawati ◽  
Kanang Setyo Hindarto
Keyword(s):  
Oryza Sativa ◽  
Food Source ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Rice Production ◽  
Index Selection ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Main Food Source

ABSTRACTRice (Oryza sativa L.) is a rice-producing crop that is the main food source for most of Indonesia's population. Although rice production increases but needs to be maintained. One of the efforts in maintaining rice production is by assembling superior paddy varieties that are adaptive to Ultisol soil. This study aims to compare the appearance of 15 lines of upland rice grown in Ultisol soil and choose the best lines based on index selection. The research was conducted on August 2015 until January 2016 at New Field Experiment Garden of Agriculture Faculty of Bengkulu University of Kandang Limun Sub-District, Muara Bangkahulu Sub-district, Bengkulu City. The experimental design was Randomized Block Design (RAKL) with 3 replications. As the treatment is 15 lines of rice are G1, G2, G3, G5, G8, G13, G16, G24, G30, G32, G35, G40, G44, G45, and G50. Of the 15 gogo rice strains tested showed that the generative and vegetative variables did not significantly affect the number of leaves, the number of productive tillers, the number of pithy grains per panicle, the weight of the grain per panicle, the weight of 100 grains, and the weight of grain per hill.keywords: upland rice, Ultisol, yield

scholarly journals Kandungan C-Organik, N-Total Tanah serta Hasil Padi Gogo (Oryza sativa L.) Akibat Perlakuan Pupuk Organik pada Ultisols Asal Desa Kentrong, Provinsi Banten

Agrikultura ◽  
2015 ◽  
Vol 26 (2) ◽  
Author(s):  
Rimma Rakhmalia ◽  
Randy Gema R. ◽  
Anni Yuniarti
Keyword(s):  
Oryza Sativa ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
N Uptake ◽  
Poultry Manure ◽  
Organic Fertilizers ◽  
Total N ◽  
Randomized Block Design

ABSTRACTEffect of Organic Fertilizers on C-organic, total-N soil and Yield of Upland Rice (Oryza sativa L.) onUltisols Collected from Kentrong Area, Banten ProvinceThis experiment was aimed to study the effect of various kinds and dosages of organic fertilizers onC-organic, total-N soil and yield of upland rice (Oryza sativa L.) in Ultisols collected from Kentrongarea, Banten Province. The experiment was arranged in a randomized block design with tentreatments and three replications. The treatments were control (without organic ferlitizer), poultrymanure 37.5 g/polibag, poultry manure 75 g/polybag, poultry manure 112.5 g/polybag,vermicomposting 37.5 g/polybag, vermicomposting 75 g/polybag, vermicomposting 112.5g/polybag, compost of straw 37.5 g/polybag, compost of straw 75 g/polybag and compost of straw112.5 g/polybag. The result showed that there was an effect of various kinds and dosages of organikfertilizers on C-Organic, but there was no effect on N-Uptake. For the yield of upland rice, dosageof 112.5 g/polybag of poultry manure gave the best result which was 21.08 g/polybag.Keywords: C-organic, total-N, organic fertilizersABSTRAKPercobaan ini dilakukan untuk mengetahui pengaruh pemberian macam dan dosis pupuk organikterhadap C-organik, N-total dan hasil padi gogo (Oryza sativa L.) pada Ultisols asal Desa Kentrong,Provinsi Banten. Metode percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK),dengan sepuluh perlakuan dan diulang tiga kali. Sepuluh taraf tersebut terdiri dari perlakuankontrol (tanpa pupuk organik), pupuk kandang ayam 37,5 g/polibeg, pupuk kandang ayam 75g/polibeg, pupuk kandang ayam 112,5 g/polibeg, pupuk kascing 37,5 g/polibeg, pupuk kascing 75g/polibeg, pupuk kascing 112,5 g/polibeg, pupuk kompos jerami 37,5 g/polibeg, pupuk komposjerami 75 g/polibeg, dan pupuk kompos jerami 112,5 g/polibeg. Hasil percobaan menunjukkanterdapat pengaruh pemberian macam dan dosis pupuk organik terhadap C-Organik tanah tetapitidak berpengaruh terhadap N-Total. Untuk hasil panen padi gogo, dosis 112,5 g/polibeg pupukkandang ayam memberikan hasil panen padi gogo terbaik yaitu 21,08 g/polibeg.Kata kunci: C-organik, N-total, pupuk organik

scholarly journals Response of Hybrid Rice (Oryza sativa L.) to Several Nitrogen Levels during Kharif (Autumn) Season in New Alluvial Zone of West Bengal

2020 ◽  
pp. 160-165
Author(s):  
Rumi Saha ◽  
Megha Sana ◽  
Subhajit Pal ◽  
Krishnendu Mondal ◽  
Sukanta Pal
Keyword(s):  
Oryza Sativa ◽  
West Bengal ◽  
Hybrid Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Superior Performance ◽  
Rice Varieties ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Randomized Block Design

Introduction: Rice (Oryza sativa L.) is one of the most important staple foods for more than half of the world’s population Aim: To find out the most suitable nitrogen level for hybrid rice productivity in new alluvial zone of west Bengal. Study Design: The experiment was laid out in Factorial Randomized Block Design (FRBD) with 10 treatment combinations and three replicates. Place and Duration of Study: Kharif seasons of 2018 and 2019 at Regional-Research Sub-Station (RRSS) Chakdaha of BCKV under new alluvial zone of West Bengal. Methods: Combinations having two hybrid rice varieties viz., V1 (PAN 2112 Gold), V2 (KRH-2) and five nitrogen levels viz. N1 (0:60:60 N: P2O5: K2O Kg ha-1), N2 (50:60:60 N: P2O5: K2O Kg ha-1), N3 (100:60:60 N: P2O5: K2O Kg ha-1), N4 (150:60:60 N: P2O5: K2O Kg ha-1), N5 (200:60:60 N: P2O5: K2O Kg ha-1) Generally, yield contributing characters were studied at maturity of the crop. For yield analysis samples were taken from each plot and yield attributes were calculated. Results: Results revealed that almost all yield attributes gave significantly superior performance in the variety PAN 2112 Gold with N4 level of fertilization. The maximum grain yield (5.10 t ha-1) was recorded in the variety V1 in combination with N4 level of nitrogen which was 6.69% more than KRH-2. Highest harvest index (50.86%) was noticed in same treatment combination. Conclusion: It may be concluded that PAN 2112 Gold with fertilizer dose N: P2O5: K2O 150:60:60 Kg ha-1 can be recommended for South Bengal locations contributing to a yield of 5.10 t ha-1 as an Aman crop.

scholarly journals PENGARUH JARAK TANAM TERHADAP PERTUMBUHAN PADI ADAN KRAYAN (Oryza sativa L.)

2021 ◽  
Vol 46 (2) ◽  
pp. 251
Author(s):  
Harfresen Harfresen ◽  
Rustam Baraq Noor ◽  
Iin Arsensi
Keyword(s):  
Oryza Sativa ◽  
Plant Height ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Row Spacing ◽  
Randomized Block Design

The purpose of the research was to the effect of row spacing on the growth of upland rice (Oryza sativa L.) Adan Krayan; and to find row spacing for better growth of upland rice Adan Krayan.The research carried out from July to October 2020 in Liang Bua Village,  Krayan Barat su-district, Nunukan Regency.The research used Completely Randomized Block Design (CRBD) with four treatment of row spacing and five replications namely: no uniform as control (p0), 30 cm x 30 cm (p1), 40 cm x 40 cm (p2), and 50 cm x 50 cm (p3).   The result of the research revealed that : (1) row spacing treatment affected significantly to very significantly on the plant height, number of leaf and number of a tiller at 30, 60, and 90 days after planting, and (2) the best of the growth was produced in 40 cm x 40 cm.

Assessment of genetic variability for quantitative characters in rice (Oryza sativa L.) under post flood situation in sali

2021 ◽  
Vol 58 (1) ◽  
pp. 43-48
Author(s):  
Dalibha Pathak ◽  
Umesh Ch. Kalita
Keyword(s):  
Grain Yield ◽  
Coefficient Of Variation ◽  
Quantitative Traits ◽  
Oryza Sativa L ◽  
Block Design ◽  
Genetic Advance ◽  
Spikelet Sterility ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Spikelets Per Panicle

Sixteen genotypes of rice (including one check) were evaluated on 18 quantitative traits during sali (August), 2018 in a randomized block design with three replications at Instruction cum Research Farm, Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat to study the nature and magnitude of variability, heritability and genetic advance under delayed sown condition. The analysis of variance for 18 quantitative traits revealed the presence of significant differences for grain yield and its component characters. The highest genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was observed for chaffs per panicle followed by grains per panicle, spikelet sterility (%), spikelets per panicle, grain yield (kg/ha). A high heritability coupled with high genetic advance was observed for plant height (cm), spikelets per panicle, spikelet sterility (%), chaffs per panicle, grains per panicle, grain yield (g/hill), grain yield (kg/ha), biological yield (kg/ha), straw weight (kg/ha) and harvest index (%) indicating that selection might be effective for improvement of these characters under delayed sown condition with low input. From the findings of this investigation, one genotype viz., Gandhari emerged as the outstanding genotype which yielded 4170 kg/ha and could be directly used for cultivation in delayed sown situation with low inputs. Some other promising genotypes that yielded higher than the check Manoharsali under delayed sown condition were JR 29, JR 16, Basundhara and JR 60 and could be utilized as potential parental material in the hybridization programmes designed to develop suitable rice varieties for delayed sown situation.

scholarly journals Yield performance of upland rice cultivars at different rates and times of nitrogen application

2012 ◽  
Vol 36 (2) ◽  
pp. 475-483 ◽  
Author(s):  
José Hildernando Bezerra Barreto ◽  
Ismail Soares ◽  
José Almeida Pereira ◽  
Antonio Marcos Esmeraldo Bezerra ◽  
José Aridiano Lima de Deus
Keyword(s):  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
N Fertilization ◽  
Rice Cultivars ◽  
Nitrogen Application ◽  
N Application ◽  
Yield Performance ◽  
Randomized Block Design ◽  
N Rates

Nitrogen is the most important nutrient for rice (Oryza sativa L) yields. This study aimed to evaluate the response of upland rice cultivars to N rate and application times in a randomized block design, in subdivided plots with four replications. The studied factors were five rice cultivars (BRS MG Curinga, BRS Monarca, BRS Pepita, BRS Primavera, and BRS Sertaneja), three application times (100 % at planting, 50 % at planting - 50 % at tillering and 100 % at tillering) and four N rates (0, 50, 100, and 150 kg ha-1). All cultivars responded to increased rates and different times of N application, especially BRS Primavera and BRS Sertaneja, which were the most productive when 50 % N rates were applied at sowing and 50 % at tillering. The response of cultivar BRS Monarca to N fertilization was best when 100 % of the fertilizer was applied at tillering.

scholarly journals Evaluation of Short Duration Drought Tolerant Rice Varieties in Drought Prone Areas of Subarnapur District of Odisha

2020 ◽  
pp. 21-26
Author(s):  
S. Pradhan ◽  
F. H. Rahman ◽  
S. Sethy ◽  
G. Pradhan ◽  
J. Sen
Keyword(s):  
Short Duration ◽  
Upland Rice ◽  
Plant Protection ◽  
Block Design ◽  
Rice Variety ◽  
Rice Varieties ◽  
Agronomic Practices ◽  
Drought Tolerant ◽  
Randomized Block Design ◽  
Sowing Seed

A study was conducted in farmer’s field through technology demonstrations during Kharif season of 2018 and 2019 in Subarnapur district of Odisha to recommend the most suited short duration drought tolerant upland rice variety particular to the locality. Six different varieties like Sahabhagi dhan, Mandakini, Jogesh, DRR-44, and DRR-42 & Khandagiri were taken with four replications in Randomized Block Design in both years. Technology demonstration included not only the improved short duration varieties, but also a package of good agronomic practices viz. line sowing, seed treatment with Bavistin, proper fertilization with dose @ 80:40:40 NPK/ha, pre emergence herbicide application with pretilachlor, needful manual weeding and  need based plant protection chemicals. The results of demonstration showed that farmers could increase rice productivity notably by adopting improved variety Sahabhagi dhan and DRR-44. These varieties recorded higher grain yields of 64% and 46%, respectively, and fetched a sum return of Rs 25620 and Rs 25275 over farmers’ local variety Khandagiri.

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