Bio-Efficacy of Different Herbicides on Weed Dynamics, Growth and Grain Yield of Transplanted Rice (Oryza sativa L.) in Odisha, India

A field experiment was managed during kharif season of 2014 in G. B. Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) to assess the outcome of applying dissimilar rates of triasulfuron on the transplanted rice (Oryza sativa L.) associated weeds. Treatments composed of triasulfuron at three different rates, metsulfuron methyl, ethoxysulfuron, 2, 4-D with 2 checks (weed free and untreated). Experiment was carried out in Randomised block Design with 8 treatments and 3 replications. Grassy weeds, broad leaf weeds and sedges were observed during the crop growth period. Triasulfuron at 12 g ha-1 proved most efficient in controlling weeds at 60 and 90 days after transplanting (DAT) with 44.4 % and 59.6 % WCE respectively. Minimum weed dry matter (65.1 g m2) was observed with triasulfuron at 12 g ha-1. Out of all the herbicidal treatments, triasulfuron at 12 g ha-1 gave the paramount grain yield of rice (5786 kg ha-1) which was significantly surpassing all other herbicidal treatments, while it was minimum in metsulfuron methyl at 4 g ha-1 (4417 kg ha-1).

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Effect of Different Weed Management Practices on Nutrient Removal, Nutrient Uptake and Grain Yield of Transplanted Rice (Oryza sativa L.) under Sodic Soil Ecosystem

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2021.1005.045 ◽

2021 ◽

Vol 10 (5) ◽

pp. 378-389

Author(s):

G. Manisankar T. Ramesh ◽

S. Rathika

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Nutrient Uptake ◽

Nutrient Removal ◽

Weed Management ◽

Management Practices ◽

Oryza Sativa L ◽

Soil Ecosystem ◽

Sodic Soil ◽

Transplanted Rice

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Influence of Plant Densities and Age of Seedlings on Dry Matter Partitioning and Grain Yield Potential of Transplanted Rice (Oryza sativa L.)

International Journal of Current Research in Biosciences and Plant Biology ◽

10.20546/ijcrbp.2016.304.009 ◽

2016 ◽

Vol 3 (4) ◽

pp. 51-55

Author(s):

G. Vijayalaxmi ◽

G. Sreenivas ◽

P. Leela Rani ◽

T. Ram Prakash

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Dry Matter ◽

Oryza Sativa L ◽

Yield Potential ◽

Dry Matter Partitioning ◽

Transplanted Rice ◽

Plant Densities

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Effect of Planting Techniques and Nutrient Management Options on Crop Productivity and Soil Health of Wet Rice (Oryza sativa L) in Typic Ustochrept Soils

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2021/v33i2230681 ◽

2021 ◽

pp. 39-54

Author(s):

M. Sharath Chandra ◽

R. K. Naresh ◽

. Vivek ◽

S. P. Singh ◽

. Purushottam ◽

...

Keyword(s):

Oryza Sativa ◽

Organic Carbon ◽

Grain Yield ◽

Management Practices ◽

Nutrient Management ◽

Oryza Sativa L ◽

Soil Health ◽

Management Options ◽

Straw Yield ◽

Transplanted Rice

A two years field experiment was carried out in sandy loam soil during rainy (Kharif) seasons in 2019-2020 at CRC farm of sardar vallabhbhai patel university of agricultural & technology, Meerut, Uttar Pradesh to evaluate the various Planting techniques and integrated nutrient management on yield and soil health of rice (Oryza sativa L.) under rice- wheat copping system. The treatments comprised of two Planting techniques i.e., E1-Conventional puddled transplanted rice (CT- TPR), E2- Wide bed Transplanted rice (W Bed-TPR) and Nine Nutrient management practices {N1- Control, N2- 100% RDF + ZnSO4 25 kg ha-1, N3- 125% RDN + ZnSO4 25 kg ha-1, N4- STCR based NPK application + ZnSO4 25 kg ha-1, N5- N2+ FYM (5 t ha-1), N6- N2+ FYM (5 t ha-1) + PSB (5 kg ha-1)+ Azotobactor 20 kg ha-1, N7- 75% RDN + FYM (5 t ha-1) + ZnSO4 25 kg ha-1, N8-75% RDN + FYM (5 t ha-1) + PSB (5 kg ha-1) + Azotobactor 20 kg ha-1 + ZnSO4 25 kg ha-1, N9- Organics Practices @ FYM (30 t ha-1)+PSB (5 kg ha-1) + Azotobactor 20 kg ha-1 + ZnSO4 25 kg ha-1} are laid down in Factorial Randomized block design and replicated thrice. The results indicated that among the different Planting techniques (PTs), conventional puddled transplanted rice (E1, CT-TPR) was recorded significantly higher grain yield (40.4 & 41.3 q ha-1), straw yield (62.7 & 63.8 q ha-1), NPK content and uptake and also improved soil health status ie., available NPK, organic carbon and other physical properties i.e, Bulk density, EC, pH in soil than wide bed transplanted rice (E2, W Bed-TPR) during both years of kharif 2019 & 2020 respectively. Among the nutrient management practices, the N6 (100% RDF + ZnSO4 25 kg ha-1 + FYM (5 t ha-1) + PSB (5 kg ha-1)+ Azotobactor 20 kg ha-1 ) treatment produced significantly higher grain yield (49.0 & 50.2 q ha-1), straw yield (81.2 & 82.8 q ha-1), NPK content and uptake, and available NPK organic carbon in soil than the other treatments, which were comparable to the N3 (125% RDN + ZnSO4 25 kg ha-1) treatment and the lowest in the control treatment N1, respectively. Thus, the results suggest that inclusion of inorganic fertilizer along with organic manure (FYM) enhanced the rice yield Therefore, application of conventional puddled transplanted rice (E2, CT-TPR) along with N6 (100% RDF + ZnSO4 25 kg ha-1 + FYM (5 t ha-1) + PSB (5 kg ha-1)+ Azotobactor 20 kg ha-1 ) found beneficial to increase productivity and soil health of rice crop.

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Efficacy of some insecticide modules against major insect pests and spider population of rice, Oryza sativa L.

ENTOMON ◽

10.33307/entomon.v43i4.405 ◽

2018 ◽

Vol 43 (4) ◽

pp. 257-262

Author(s):

Atanu Seni ◽

Bhimasen Naik

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Untreated Control ◽

Insect Pests ◽

Oryza Sativa L ◽

Gall Midge ◽

Stem Borer ◽

The Other ◽

The Third ◽

Treated Plot

Experiments were carried out to assess some insecticide modules against major insect pests of rice. Each module consists of a basal application of carbofuran 3G @ 1 kg a.i ha-1 at 20 DAT and Rynaxypyr 20 SC @ 30 g a.i ha-1 at 45 DAT except untreated control. All modules differ with each other only in third treatment which was applied in 65 DAT. The third treatment includes: Imidacloprid 17.8 SL @ 27 g a.i ha-1, Pymetrozine 50 WG @ 150 g a.i ha-1, Triflumezopyrim 106 SC @ 27 g a.i ha-1, Buprofezin 25 SC @ 250 g a.i ha-1; Glamore (Imidacloprid 40+Ethiprole 40% w/w) 80 WG @ 100 g a.i. ha-1, Thiacloprid 24 SC @ 60 g a.i ha-1, Azadirachtin 0.03 EC @ 8 g a.i ha-1, Dinotefuran 20 SG@ 40 g a.i ha-1 and untreated control. All the treated plots recorded significantly lower percent of dead heart, white ear- head caused by stem borer and silver shoot caused by gall midge. Module with Pymetrozine 50 WG @ 150 g a.i ha-1 treated plot recorded significantly higher per cent reduction of plant hoppers (>80% over untreated control) and produced higher grain yield (50.75 qha-1) than the other modules. Among the different treated modules the maximum number of spiders was found in Azadirachtin 0.03 EC @ 8 g a.i ha-1 treated module plot followed by other treatments.

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