scholarly journals Effect of weed management practices on growth and yield of transplanted rice (Oryza sativa L.) under system of rice intensification

2021 ◽  
Vol 10 (11) ◽  
pp. 156-160
Author(s):  
Ajithkumar M ◽  
Radhamani S ◽  
Chinnamuthu CR ◽  
Ravichandiran V
Keyword(s):  
Oryza Sativa ◽  
Weed Management ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
System Of Rice Intensification ◽  
Transplanted Rice ◽  
Rice Intensification

scholarly journals Weed control efficiency and weed index as influenced by weed management practices in machine transplanted rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1947-1952
Author(s):  
R. B. Negalur ◽  
A. S. Halepyati
Keyword(s):  
Oryza Sativa ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Weed Population ◽  
Transplanted Rice ◽  
Hand Weeding ◽  
Row Space

Field experiment on effect of different weed management practices in machine transplanted rice (Oryza sativa L.) was conducted at ARS, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka during kharif, 2012 and 2013 under irrigated condition in clay soil. Pooled mean indicated that, application of butachlor 50 EC fb passing of power operated low land rice weeder twice at 20 and 30 DAT with hand weeding in intra row space recorded significantly lower grassy weed population and dry weight at 40, 60 DAT and at harvest (1.98, 2.47, 2.97/0.25 m2 and 1.00, 1.20, 1.47 g /0.25 m2, respectively), sedge weed population and dry weight (2.61, 3.21, 3.52 /0.25 m2 and 1.19, 1.48, 1.71 g /0.25 m2, respectively) and broad leaved weed population and dry weight (1.68, 2.10, 2.52 / 0.25 m2 and 0.91, 1.06, 1.28 g /0.25 m2, respectively). Significantly higher WCE (87.53%), lower weed index (3.11 %), grain and straw yield (5160 and 6482 kg ha-1, respectively), gross and net returns (Rs. 92,212 and 50,410 ha-1, respectively), and B:C of 2.22 over unweeded check. Hence, application of butachlor 50 EC fb passing of power operated low land rice weeder at 20 and 30 DAT with hand weeding in intra row space was found to be the best weed control method as it recorded higher B:C. Present conventional manual weeding is which is not advantageous as it is costlier, time consuming and labour may trample and damage rice seedlings. Mechanical weeder and sequential application can overcome the same.

scholarly journals UJI BERBAGAI DOSIS PUPUK HERBAFARM GRANUL TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN PADI SAWAH (Oryza sativa L.) DENGAN METODE SRI

2019 ◽  
Vol 15 (2) ◽  
pp. 95-104
Author(s):  
AHMAD EFRIZAL ◽  
CHAIRIL EZWARD ◽  
SEPRIDO SEPRIDO
Keyword(s):  
Oryza Sativa ◽  
Standard Treatment ◽  
Oryza Sativa L ◽  
System Of Rice Intensification ◽  
Random Group ◽  
The Real ◽  
Rice Intensification ◽  
Plot Experiment

This report aims to understand response various herbafarm granule doses of growth and the production of rice (Oryza Sativa L.) fields with the SRI (System Of Rice Intensification). Draft use is a random (group shelves) non factorials namely fertilizer herbafarm granule consisting of 6 standard treatment consisting of 3 test, H0 (Without treatment), H1 (2,43 g/plot), H2 (4,86 g/plot), H3 (7,29 g/plot), H4 (9,72 g/plot), H5 (12,15 g/plot). Each treatment repeat three times, 18 units in order to obtain a plot / experiment, Every a plot there were 9 plants and 7 of them sample plants. The quantity of a crop a whole 162 plant. Then the data obtained by in statistically analysis, further by test different real bnj truthful , 5 percent the first. Based on the research done so it can be concluded that treatment fertilizer herbafarm granule with the SRI give impact on the real parameters, for observation age flowering ( 77.33 hst ) and aged harvest ( 109 .33 hst ) treatment is the best H1 treatment, As for the number of productive saplings (39.90 stem) and heavy of dried grain (87.48 gram) treatment is the best H4 treatment.

scholarly journals Studies on mulching and weed management in unpuddled transplanted rice (Oryza sativa L.)

2020 ◽  
Vol 8 (4) ◽  
pp. 3365-3369
Author(s):  
Sneha Kumari ◽  
Manoj Kumar Singh ◽  
Sripriya Das
Keyword(s):  
Oryza Sativa ◽  
Weed Management ◽  
Oryza Sativa L ◽  
Transplanted Rice
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