Impact of Source and Method of Potassium Application on Dry Matter Accumulation and Partitioning of Potassium in Rice (Oryza sativa L.)

2021 ◽  
Author(s):  
Arnab Kundu ◽  
Priyankar Raha ◽  
Akhila Nand Dubey
Keyword(s):  
Oryza Sativa ◽  
Dry Matter ◽  
Oryza Sativa L ◽  
Dry Matter Accumulation ◽  
Potassium Application

scholarly journals Combined effect of land preparation methods and planting geometry on the performance of machine transplanted rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1855-1860
Author(s):  
R. B. Negalur ◽  
A. S. Halepyati ◽  
B. G. Masthanaredy
Keyword(s):  
Oryza Sativa ◽  
Dry Matter ◽  
Oryza Sativa L ◽  
Research Station ◽  
Dry Matter Accumulation ◽  
Preparation Methods ◽  
Area Index ◽  
Land Preparation ◽  
Transplanted Rice ◽  
Planting Geometry

Field experiment on effect of land preparation methods and planting geometry on growth and yield of machine transplanted rice (Oryza sativa L.) was conducted at Agricultural Research Station, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka during kharif, 2012 and 2013 in clay soil under irrigated condition.Pooled mean indicated that, among the different land preparation methods and planting geometry puddling with rotovator fb levelling with spike tooth harrow and planting geometry of 30 x 21 cm recorded significantly higher growth parameters viz., Leaf area index ( 2.87 and 1.56, respectively) , dry matter accumulation in leaves (13.44 and 14.43 g plant-1, respectively), dry matter accumulation in stem (26.25 and 29.31 g plant-1 , respectively), dry matter accumulation in panicles ( 37.21 and 41.38 g plant-1 , respectively), total dry matter accumulation in plant (73.82 and 85.12 g plant-1, respectively), thousand grain weight (18.17 and 18.71,g respectively), grain yield (4906 and 5192 kg ha-1 , respectively), straw yield (6247 and 6508 kg ha-1, respectively), gross returns (Rs. 87,733 and 92779 ha-1, respectively), net returns (Rs. 46329 and 50007 ha-1) and benefit cost ratio (2.14 and 2.20 ). Puddling with rotovator fb levelling with spike tooth harrow and 30 x 21 cm spacing were found better for transplanting of rice by self propelled mechanical transplanter. Land preparation would be helpful as one of the important pre requirement in machine transplanting of rice, which in turn will decide the time (time required for settling of soil particle) and type of machine to be used for transplanting of rice.

Study the Effect of Nitrogen Fertilizer Management on Dry Matter Remobilization of Three Cultivars of Rice (Oryza sativa L.)

2007 ◽  
Vol 10 (19) ◽  
pp. 3425-3429 ◽  
Author(s):  
Hossein Kazemi Pos ◽  
Hemmatollah Pirdashti ◽  
Mortaza Nasiri ◽  
Mohammad Ali Bahman
Keyword(s):  
Oryza Sativa ◽  
Nitrogen Fertilizer ◽  
Dry Matter ◽  
Oryza Sativa L ◽  
Fertilizer Management

Effect of stubble management with biological inoculants on the growth and yield of rice (Oryza sativa L.) in rice-based cropping systems

2004 ◽  
Vol 52 (1) ◽  
pp. 105-108 ◽  
Author(s):  
V. Damodaran ◽  
P. Subbian ◽  
S. Marimuthu
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Dry Matter ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Management Practice ◽  
Cropping Systems ◽  
Trichoderma Viride ◽  
Growth And Yield ◽  
Biological Inoculants

A field experiment was conducted at Tamil Nadu Agricultural University from July 2001 to July 2002 to study the effect of different stubble management practices using biological inoculants on the growth and yield of rice in rice-based cropping systems. inoculation with Trichoderma viride during stubble incorporation followed by the application of 120 kg N ha-1 in 4 splits produced significantly taller plants, higher LAI and dry matter, a larger number of productive tillers, longer panicles with more filled grains and higher grain yield. However, it was on par with the stubble management practice involving Trichoderma viride followed by the application of 90 kg N ha-1 in 4 splits.

scholarly journals Effect of nitrogen scheduling in early and late planted medium duration rice (Oryza sativa L.)

2021 ◽  
Vol 23 (3) ◽  
pp. 279-285
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Research Station ◽  
Dry Matter Accumulation ◽  
N Application ◽  
Yield Attributes ◽  
Late Planting ◽  
Four Levels

A field experiment on rice (Oryza sativa L.) crop was conducted at Rice Research Station, Kaul (Kaithal), India during kharif season of 2017 and 2018 to evaluate the optimum schedule of nitrogen application in the rice grown under early and late planting conditions. The treatments consisted of three timings of transplanting (3rd week of June, 1st week of July and 3 rd week of July), four levels of N (90, 120, 150 and 180 kg Nha-1) and four timings of N fertilizer application (½ at transplanting + ½ at 21 DAT, ½ at 21 DAT + ½ at 42 DAT, 1/3 at transplanting + 1/3 at 21 DAT + 1/3 at 42 DAT and LCC based N supply) and were laid out in split-plot design with transplanting time and N levels in main plots and N application time in sub-plots. The growth parameters (plant height, number of tillers/m2 and dry matter accumulation/m2), yield attributing characters (number of panicles/m2 and grains/panicle) and yield (grain and straw yield) of rice crop reduced significantly under late planting (3rd week of July) as compared to that under the two earlier plantings (3rd week of June and 1stweek of July) whereas the two earlier plantings were at par in respect of these parameters. The growth, yield attributes and the yield increased with every increase in N application rates but the increase was significant up to 150 kg Nha-1. The highest yield was (7.33 tha-1), however, obtained with the crop transplanted early (up to1st week of July) and supplied with 150 kg Nha-1.Application of N in three equal splits (at 0, 21 and 42 DAT or as per LCC schedule), being at par, resulted into higher yield (grain and straw) than the N application in two equal splits. The net returns and B: C ratio increased appreciably with increase in N application levels upto 150 kg Nha-1 obviously due to increase in crop yield.

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