scholarly journals Effect of Integration of Organic and Inorganic Sources of Nitrogen on Rice (Oryza sativa l.) Yield

2020 ◽  
Vol 1 (2) ◽  
pp. 115-119
Author(s):  
Shenoy H ◽  
◽  
Siddaraju M. N.
Keyword(s):  
Oryza Sativa ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Panicle Length ◽  
Yield Attributes ◽  
Straw Yield ◽  
Yield Parameters ◽  
Effect On Yield ◽  
Percent Nitrogen

Field experiments were conducted during Kharif-2017 and 2018 at ICAR-Krishi Vigyan Kendra (KVK), Mangaluru of coastal Karnataka to study the effect of integration of organic and inorganic sources of nitrogen on the yield of midland rice. The results indicated that the integration of organic and inorganic sources of nitrogen significantly influenced the growth and yield attributes of rice. The highest grain yield (5434 and 5372 kg ha-1) and straw yield (6817 and 6927 kg ha-1) were recorded in the treatment comprising VC substituted with 50 percent recommended dose of nitrogen which was on par with PM substituted at 50 percent in both the years. A similar trend was also noticed in both the years for the growth and yield parameters where the highest plant height (94.93 and 96.30 cm) highest productive tillers (16.85 and 18.12) and longer panicle length (17.54 and 18.65 cm) was recorded in the treatment where 50 percent nitrogen was substituted by vermicompost compared to control. The remaining treatments of organic substitution ratios with urea also had a beneficial effect on yield and yield parameters of rice compared to control.

scholarly journals Effects of different levels of flooding and additional application of two nutrients on boro rice (Binadhan-8) in saline soil

2015 ◽  
Vol 2 (3) ◽  
pp. 439-443
Author(s):  
Md Zahir Raihan ◽  
Md Saeed Hasan ◽  
Abu Zofar Md. Moslehuddin ◽  
Md Mahbubul Alam Tarafder ◽  
Md Ekramul Haque
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Growth And Yield ◽  
Panicle Length ◽  
Yield Attributes ◽  
Straw Yield ◽  
Remarkable Effect ◽  
Continuous Flooding ◽  
Flooding Duration ◽  
Boro Rice

A field experiment was conducted at Kalikapur village of Kaliganj upazila under Satkhira district in order to observe the effects of flooding duration and additional application of K and S on transplanted boro rice cv. Binadhan-8 during January - May 2013. The experiment was laid out in a split-plot design where the main plots comprised of five flooding levels viz. continuous flooding (W1), flooding for 10 days (W2), flooding for 20 days (W3), flooding for 30 days (W4), flooding for 40 days (W5), and the sub-plots of four additional (over the recommended dose) nutrients rates viz. S43 + K25 (T1), K38 (T2), S32 + K38 (T3), and K50 (T4), with three replications. The duration of flooding showed significant positive effect on the yield and yield components of boro rice cv. Binadhan-8. The highest values for plant height (106.8 cm), panicle length (28.4 cm), number of plants hill-1 (15.3), grain yield (4.8 t ha-1) and straw yield (6.5 t ha-1) were recorded in continuous flooding (W1) while these values were decreased with the decrease in the duration of flooding from 40 days to 10 days. Additional application of K and S also significantly influenced all of the parameters. Results revealed that the highest values for plant height (102.8 cm), panicle length (26.6 cm), plants hill-1 (15.4), 1000-grain weight (23.9 g), grain yield (4.8 t ha-1) and straw yield (6.1t ha-1) were obtained from T3 where S and K were applied @ 32 and 38 Kg ha-1 in addition to the recommended fertilizer rate. The interaction of flooding and nutrients significantly manipulated the yield and yield attributes. Due to interaction of flooding and nutrients, the highest growth and yield was observed in continuous flooding with S32 + K38 (W1T3). The results indicated that the flooding with fresh water and use of additional nutrients (K and S) had a remarkable effect in growing boro rice cv. Binadhan-8 in saline soils of Bangladesh.Res. Agric., Livest. Fish.2(3): 439-443, December 2015

Effect of LCC-based nitrogen application on growth and yieldof rice (Oryza sativa L.) varieties during dry season

2016 ◽  
Vol 51 (1) ◽  
Author(s):  
Shrabani Moharana ◽  
J.M. L. Gulati ◽  
S. N. Jena
Keyword(s):  
Oryza Sativa ◽  
Field Experiment ◽  
Grain Yield ◽  
Real Time ◽  
Oryza Sativa L ◽  
Threshold Value ◽  
Nitrogen Management ◽  
Nitrogen Application ◽  
Panicle Length ◽  
Straw Yield

Data from a field experiment on Real Time Nitrogen Management (RTNM) in rice revealed that variety Gobinda produced significantly the highest grain yield of 49.6 q ha-1 associated with long panicle (26.75 cm) bearing significantly the maximum number of filled grains panicle-1 (156.78) producing highest net return (Rs.33214.71), B-C ratio (1.83) and return per rupee invested (0.83). Application of nitrogen based on LCC threshold value 4 produced significantly the highest grain (52.6 q ha-1), straw yield (64.4 q ha-1), number of EBT m-2 (403.71), panicle length (25.43 cm) and 148.94 filled grain panicle-1. Variety x RTNM interaction was significant and variety Naveen and Gobinda produced significantly the highest yield of 55.4 and 58.2 q ha-1 at recommended of nitrogen whereas, Lalat and Hiranmayee responded to LCC threshold value 4 (N4) with grain yield of 50.4 and 52.1 q ha-1, respectively.

Enhanced Growth and Yield of Rice (Oryza sativa L.) and Soil Enrichment is Mediated by Enhanced Availability of N and P in Soil and Plant Leaves on Application of Organic Matrix Entrapped Urea and DAP

2015 ◽  
Vol 1 (01) ◽  
pp. 57-68
Author(s):  
Rana Pratap Singh ◽  
Vishalakcchi Ashok ◽  
Sanjeev Kumar
Keyword(s):  
Oryza Sativa ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Organic Matrix ◽  
Growth And Yield ◽  
Cow Dung ◽  
Plant Leaves ◽  
Chemical Fertilizers ◽  
Field Station ◽  
Neem Leaves

Field experiments were conducted during the Kharif season of the cropping years 2011 and 2012 at the Experimental Field Station of Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow to compare the efficacy of organic matrix entrapped chemical fertilizers i.e. Urea and DAP (OMECF) with the conventional chemical fertilizers (CCF) and no fertilizer (NF) for the cultivation of rice (Oryza sativa). The OMECF prepared in granular form contained cow dung, powder of neem leaves (Azadirachta indica), and clay soil (diameter of particles less than 0.02 mm) in 1:1:1 ratios and 15% saresh (plant gum of Acacia sp.) as binder a long with half and one fourth of the recommended dose of commercially available urea and DAP. Single basal application of OMECF showed an increase in plant growth in terms of fresh and dry weights, root length, shoot length, root and leaves numbers and levels of NO3-, NO2-, NH4 + and PO4 -in the rhizosphere and their accumulation in plant leaves.

scholarly journals Effects of potassium humate and chemical fertilizers on growth, yield and quality of rice (Oryza sativa L.)

2015 ◽  
Vol 43 (2) ◽  
pp. 183-189
Author(s):  
Dileep Kumar ◽  
AP Singh ◽  
P Raha ◽  
CM Singh
Keyword(s):  
Oryza Sativa ◽  
Zinc Sulphate ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Growth And Yield ◽  
Chemical Fertilizers ◽  
Npk Fertilizers ◽  
Potassium Humate ◽  
Yield Attributes ◽  
Yield And Quality

A pot experiment was conducted in Kharif 2009 and 2010 to study the effect of potassium humate and chemical fertilizers on growth and yield attributes of rice (Oryza sativa L). Potassium humate was applied at the rate of 0, 5 and 10 mg/kg soil along with 100 and 75% recommended dose of fertilizers NPK (60, 30, 30 mg/kg) and 12.5 mg/kg zinc sulphate was also applied. Addition of 10 mg/kg PH along with 100% NPK fertilizers and 12.5 mg/kg zinc sulphate caused significant increase in plant height, number of tillers, panicle height, panicle length, test weight, straw yield and yield of rice as compared to 100 and 75% NPK alone. DOI: http://dx.doi.org/10.3329/bjb.v43i2.21671 Bangladesh J. Bot. 43(2): 183-189, 2014 (September)

scholarly journals Effects of spacings and butachlor levels on weed control, growth and yield of NERICA 1 rice (Oryza sativa L. x Oryza glaberrima L.)

2017 ◽  
Vol 62 (4) ◽  
pp. 361-369
Author(s):  
Hassan Kasim ◽  
Ibrahim Musa ◽  
Mustapha Muhamman
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Weed Control ◽  
Crop Production ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Oryza Glaberrima ◽  
Control Growth ◽  
Main Plot

Poor agronomic practices coupled with herbicide mismanagement influence crop performance, yield, weed infestation and environmental hazards. Thus, field experiments were carried out to investigate the effect of spacing and reduced levels of butachlor on weed control and yield of NERICA 1 rice (Oryza sativa L. x Oryza glaberrima L). The experiments were conducted in the 2011 rainy season at the Teaching and Research Farm of the Department of Crop Production and Horticulture, Modibbo Adama University of Technology, Yola, and Lake Gerio, Yola in the 2012 dry season. Yola is located between latitude 9o14? N and longitude 12o28? E in the Northern Guinea Savanna ecological zone of Nigeria. Treatments consisted of four spacings (20 cm x 20 cm, etc.) and four butachlor levels (3, 2, 1, and 0 kg ha-1 a.i.). The experiments were laid out in a split-plot design with spacings assigned to the main plot and butachlor levels assigned to the sub-plot and were replicated three times. Data were taken on percentage establishment, number of leaves per plant, general weed cover, panicle length and grain yield per hectare. Data generated were subjected to analysis of variance. Means showing a significant F-test were separated using LSD. Results obtained showed that butachlor at 1 kg ha-1 and 14 cm x 14 cm spacing gave the highest grain yield of 1441 kg ha-1 and maximum weed control. They are, therefore, recommended for adoption by farmers in Yola and similar environments.

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